diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b22141e4c6..c65d3e3090 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,8 +12,14 @@ on:
     branches: ['**']
   push:
     branches: ['**']
+    tags: [v*]
 
 env:
+  PGP_PASSPHRASE: ${{ secrets.PGP_PASSPHRASE }}
+  SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
+  SONATYPE_CREDENTIAL_HOST: ${{ secrets.SONATYPE_CREDENTIAL_HOST }}
+  SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+  PGP_SECRET: ${{ secrets.PGP_SECRET }}
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
 jobs:
@@ -23,18 +29,26 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         scala: [2.12.15, 2.13.8, 3.0.2]
-        java: [temurin@8, temurin@17, graal_20.3.1@11]
-        platform: [jvm, js, native]
+        java: [temurin@8, temurin@17, graalvm@11]
+        project: [rootJS, rootJVM, rootNative]
         exclude:
-          - platform: js
+          - scala: 2.13.8
             java: temurin@17
-          - platform: native
+          - scala: 2.13.8
+            java: graalvm@11
+          - scala: 3.0.2
             java: temurin@17
-          - platform: js
-            java: graal_20.3.1@11
-          - platform: native
-            java: graal_20.3.1@11
-          - platform: native
+          - scala: 3.0.2
+            java: graalvm@11
+          - project: rootJS
+            java: temurin@17
+          - project: rootJS
+            java: graalvm@11
+          - project: rootNative
+            java: temurin@17
+          - project: rootNative
+            java: graalvm@11
+          - project: rootNative
             scala: 3.0.2
     runs-on: ${{ matrix.os }}
     steps:
@@ -43,26 +57,53 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Download Java (temurin@8)
+        id: download-java-temurin-8
+        if: matrix.java == 'temurin@8'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: temurin
+          java-version: 8
+
       - name: Setup Java (temurin@8)
         if: matrix.java == 'temurin@8'
         uses: actions/setup-java@v2
         with:
-          distribution: temurin
+          distribution: jdkfile
           java-version: 8
+          jdkFile: ${{ steps.download-java-temurin-8.outputs.jdkFile }}
+
+      - name: Download Java (temurin@17)
+        id: download-java-temurin-17
+        if: matrix.java == 'temurin@17'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: temurin
+          java-version: 17
 
       - name: Setup Java (temurin@17)
         if: matrix.java == 'temurin@17'
         uses: actions/setup-java@v2
         with:
-          distribution: temurin
+          distribution: jdkfile
           java-version: 17
+          jdkFile: ${{ steps.download-java-temurin-17.outputs.jdkFile }}
+
+      - name: Download Java (graalvm@11)
+        id: download-java-graalvm-11
+        if: matrix.java == 'graalvm@11'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: graalvm
+          java-version: 11
 
-      - name: Setup GraalVM (graal_20.3.1@11)
-        if: matrix.java == 'graal_20.3.1@11'
-        uses: DeLaGuardo/setup-graalvm@5.0
+      - name: Setup Java (graalvm@11)
+        if: matrix.java == 'graalvm@11'
+        uses: actions/setup-java@v2
         with:
-          graalvm: 20.3.1
-          java: java11
+          distribution: jdkfile
+          java-version: 11
+          jdkFile: ${{ steps.download-java-graalvm-11.outputs.jdkFile }}
 
       - name: Cache sbt
         uses: actions/cache@v2
@@ -77,54 +118,54 @@ jobs:
           key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
 
       - name: Check that workflows are up to date
-        run: sbt ++${{ matrix.scala }} githubWorkflowCheck
-
-      - name: Validate JavaScript
-        if: matrix.platform == 'js'
-        run: sbt ++${{ matrix.scala }} validateAllJS
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' 'project /' githubWorkflowCheck
 
-      - name: Validate Tests Native
-        if: matrix.platform == 'native'
-        run: sbt ++${{ matrix.scala }} testsNative/test
+      - name: Check headers and formatting
+        if: matrix.java == 'temurin@8'
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' headerCheckAll scalafmtCheckAll 'project /' scalafmtSbtCheck
 
-      - name: Validate Native
-        if: matrix.platform == 'native'
-        run: sbt ++${{ matrix.scala }} native/test
+      - name: scalaJSLink
+        if: matrix.project == 'rootJS'
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' Test/scalaJSLinkerResult
 
-      - name: Validate Kernel Laws Native
-        if: matrix.platform == 'native'
-        run: sbt ++${{ matrix.scala }} kernelLawsNative/test
+      - name: nativeLink
+        if: matrix.project == 'rootNative'
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' Test/nativeLink
 
-      - name: Validate Free Native
-        if: matrix.platform == 'native'
-        run: sbt ++${{ matrix.scala }} freeNative/test
+      - name: Test
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' test
 
-      - name: Validate Alleycats Tests Native
-        if: matrix.platform == 'native'
-        run: sbt ++${{ matrix.scala }} alleycatsTestsNative/test
+      - name: Check binary compatibility
+        if: matrix.java == 'temurin@8'
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' mimaReportBinaryIssues
 
-      - name: Validate Algebra Laws Native
-        if: matrix.platform == 'native'
-        run: sbt ++${{ matrix.scala }} algebraLawsNative/test
+      - name: Generate API documentation
+        if: matrix.java == 'temurin@8'
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' doc
 
-      - name: Validate JVM (scala 2)
-        if: matrix.platform == 'jvm' && (matrix.scala != '3.0.2')
-        run: sbt ++${{ matrix.scala }} buildJVM bench/test
+      - name: Make target directories
+        if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
+        run: mkdir -p algebra-laws/jvm/target free/.js/target testkit/.native/target target testkit/.js/target unidocs/target .js/target core/.native/target site/target free/.jvm/target free/.native/target alleycats-laws/.native/target alleycats-tests/js/target laws/.native/target alleycats-tests/native/target alleycats-core/.js/target alleycats-laws/.js/target kernel/.jvm/target core/.js/target kernel/.js/target algebra-laws/native/target kernel-laws/native/target laws/.js/target core/.jvm/target tests/js/target .jvm/target alleycats-core/.native/target .native/target kernel/.native/target algebra-core/.jvm/target kernel-laws/jvm/target algebra-core/.js/target alleycats-laws/.jvm/target laws/.jvm/target tests/jvm/target algebra-core/.native/target alleycats-core/.jvm/target kernel-laws/js/target testkit/.jvm/target binCompatTest/target algebra-laws/js/target alleycats-tests/jvm/target tests/native/target bench/target project/target
 
-      - name: Validate JVM (scala 3)
-        if: matrix.platform == 'jvm' && (matrix.scala == '3.0.2')
-        run: sbt ++${{ matrix.scala }} buildJVM bench/test
+      - name: Compress target directories
+        if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
+        run: tar cf targets.tar algebra-laws/jvm/target free/.js/target testkit/.native/target target testkit/.js/target unidocs/target .js/target core/.native/target site/target free/.jvm/target free/.native/target alleycats-laws/.native/target alleycats-tests/js/target laws/.native/target alleycats-tests/native/target alleycats-core/.js/target alleycats-laws/.js/target kernel/.jvm/target core/.js/target kernel/.js/target algebra-laws/native/target kernel-laws/native/target laws/.js/target core/.jvm/target tests/js/target .jvm/target alleycats-core/.native/target .native/target kernel/.native/target algebra-core/.jvm/target kernel-laws/jvm/target algebra-core/.js/target alleycats-laws/.jvm/target laws/.jvm/target tests/jvm/target algebra-core/.native/target alleycats-core/.jvm/target kernel-laws/js/target testkit/.jvm/target binCompatTest/target algebra-laws/js/target alleycats-tests/jvm/target tests/native/target bench/target project/target
 
-      - name: Binary compatibility ${{ matrix.scala }}
-        if: matrix.platform == 'jvm' && (matrix.scala != '3.0.2')
-        run: sbt ++${{ matrix.scala }} clean validateBC
+      - name: Upload target directories
+        if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
+        uses: actions/upload-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-${{ matrix.scala }}-${{ matrix.project }}
+          path: targets.tar
 
-  scalafix:
-    name: Scalafix
+  publish:
+    name: Publish Artifacts
+    needs: [build]
+    if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.12.15, 2.13.8, 3.0.2]
+        scala: [2.12.15]
         java: [temurin@8]
     runs-on: ${{ matrix.os }}
     steps:
@@ -133,26 +174,53 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Download Java (temurin@8)
+        id: download-java-temurin-8
+        if: matrix.java == 'temurin@8'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: temurin
+          java-version: 8
+
       - name: Setup Java (temurin@8)
         if: matrix.java == 'temurin@8'
         uses: actions/setup-java@v2
         with:
-          distribution: temurin
+          distribution: jdkfile
           java-version: 8
+          jdkFile: ${{ steps.download-java-temurin-8.outputs.jdkFile }}
+
+      - name: Download Java (temurin@17)
+        id: download-java-temurin-17
+        if: matrix.java == 'temurin@17'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: temurin
+          java-version: 17
 
       - name: Setup Java (temurin@17)
         if: matrix.java == 'temurin@17'
         uses: actions/setup-java@v2
         with:
-          distribution: temurin
+          distribution: jdkfile
           java-version: 17
+          jdkFile: ${{ steps.download-java-temurin-17.outputs.jdkFile }}
+
+      - name: Download Java (graalvm@11)
+        id: download-java-graalvm-11
+        if: matrix.java == 'graalvm@11'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: graalvm
+          java-version: 11
 
-      - name: Setup GraalVM (graal_20.3.1@11)
-        if: matrix.java == 'graal_20.3.1@11'
-        uses: DeLaGuardo/setup-graalvm@5.0
+      - name: Setup Java (graalvm@11)
+        if: matrix.java == 'graalvm@11'
+        uses: actions/setup-java@v2
         with:
-          graalvm: 20.3.1
-          java: java11
+          distribution: jdkfile
+          java-version: 11
+          jdkFile: ${{ steps.download-java-graalvm-11.outputs.jdkFile }}
 
       - name: Cache sbt
         uses: actions/cache@v2
@@ -166,17 +234,126 @@ jobs:
             ~/Library/Caches/Coursier/v1
           key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
 
-      - name: Scalafix tests
+      - name: Download target directories (2.12.15, rootJS)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.15-rootJS
+
+      - name: Inflate target directories (2.12.15, rootJS)
         run: |
-          cd scalafix
-          sbt test
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (2.12.15, rootJVM)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.15-rootJVM
+
+      - name: Inflate target directories (2.12.15, rootJVM)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (2.12.15, rootNative)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.15-rootNative
+
+      - name: Inflate target directories (2.12.15, rootNative)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (2.12.15, rootJVM)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.15-rootJVM
+
+      - name: Inflate target directories (2.12.15, rootJVM)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (2.12.15, rootJVM)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.15-rootJVM
+
+      - name: Inflate target directories (2.12.15, rootJVM)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (2.13.8, rootJS)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.13.8-rootJS
 
-  linting:
-    name: Linting
+      - name: Inflate target directories (2.13.8, rootJS)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (2.13.8, rootJVM)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.13.8-rootJVM
+
+      - name: Inflate target directories (2.13.8, rootJVM)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (2.13.8, rootNative)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.13.8-rootNative
+
+      - name: Inflate target directories (2.13.8, rootNative)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (3.0.2, rootJS)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-3.0.2-rootJS
+
+      - name: Inflate target directories (3.0.2, rootJS)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (3.0.2, rootJVM)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-3.0.2-rootJVM
+
+      - name: Inflate target directories (3.0.2, rootJVM)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Import signing key
+        if: env.PGP_SECRET != '' && env.PGP_PASSPHRASE == ''
+        run: echo $PGP_SECRET | base64 -di | gpg --import
+
+      - name: Import signing key and strip passphrase
+        if: env.PGP_SECRET != '' && env.PGP_PASSPHRASE != ''
+        run: |
+          echo "$PGP_SECRET" | base64 -di > /tmp/signing-key.gpg
+          echo "$PGP_PASSPHRASE" | gpg --pinentry-mode loopback --passphrase-fd 0 --import /tmp/signing-key.gpg
+          (echo "$PGP_PASSPHRASE"; echo; echo) | gpg --command-fd 0 --pinentry-mode loopback --change-passphrase $(gpg --list-secret-keys --with-colons 2> /dev/null | grep '^sec:' | cut --delimiter ':' --fields 5 | tail -n 1)
+
+      - name: Publish
+        run: sbt '++${{ matrix.scala }}' tlRelease
+
+  scalafix:
+    name: Scalafix
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.12.15, 2.13.8, 3.0.2]
+        scala: [2.12.15]
         java: [temurin@8]
     runs-on: ${{ matrix.os }}
     steps:
@@ -185,26 +362,53 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Download Java (temurin@8)
+        id: download-java-temurin-8
+        if: matrix.java == 'temurin@8'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: temurin
+          java-version: 8
+
       - name: Setup Java (temurin@8)
         if: matrix.java == 'temurin@8'
         uses: actions/setup-java@v2
         with:
-          distribution: temurin
+          distribution: jdkfile
           java-version: 8
+          jdkFile: ${{ steps.download-java-temurin-8.outputs.jdkFile }}
+
+      - name: Download Java (temurin@17)
+        id: download-java-temurin-17
+        if: matrix.java == 'temurin@17'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: temurin
+          java-version: 17
 
       - name: Setup Java (temurin@17)
         if: matrix.java == 'temurin@17'
         uses: actions/setup-java@v2
         with:
-          distribution: temurin
+          distribution: jdkfile
           java-version: 17
+          jdkFile: ${{ steps.download-java-temurin-17.outputs.jdkFile }}
+
+      - name: Download Java (graalvm@11)
+        id: download-java-graalvm-11
+        if: matrix.java == 'graalvm@11'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: graalvm
+          java-version: 11
 
-      - name: Setup GraalVM (graal_20.3.1@11)
-        if: matrix.java == 'graal_20.3.1@11'
-        uses: DeLaGuardo/setup-graalvm@5.0
+      - name: Setup Java (graalvm@11)
+        if: matrix.java == 'graalvm@11'
+        uses: actions/setup-java@v2
         with:
-          graalvm: 20.3.1
-          java: java11
+          distribution: jdkfile
+          java-version: 11
+          jdkFile: ${{ steps.download-java-graalvm-11.outputs.jdkFile }}
 
       - name: Cache sbt
         uses: actions/cache@v2
@@ -218,12 +422,13 @@ jobs:
             ~/Library/Caches/Coursier/v1
           key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
 
-      - name: Check formatting
-        if: (matrix.scala != '3.0.2')
-        run: sbt ++${{ matrix.scala }} fmtCheck
+      - name: Scalafix tests
+        run: |
+          cd scalafix
+          sbt test
 
-  microsite:
-    name: Microsite
+  site:
+    name: Generate Site
     strategy:
       matrix:
         os: [ubuntu-latest]
@@ -236,26 +441,53 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Download Java (temurin@8)
+        id: download-java-temurin-8
+        if: matrix.java == 'temurin@8'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: temurin
+          java-version: 8
+
       - name: Setup Java (temurin@8)
         if: matrix.java == 'temurin@8'
         uses: actions/setup-java@v2
         with:
-          distribution: temurin
+          distribution: jdkfile
           java-version: 8
+          jdkFile: ${{ steps.download-java-temurin-8.outputs.jdkFile }}
+
+      - name: Download Java (temurin@17)
+        id: download-java-temurin-17
+        if: matrix.java == 'temurin@17'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: temurin
+          java-version: 17
 
       - name: Setup Java (temurin@17)
         if: matrix.java == 'temurin@17'
         uses: actions/setup-java@v2
         with:
-          distribution: temurin
+          distribution: jdkfile
           java-version: 17
+          jdkFile: ${{ steps.download-java-temurin-17.outputs.jdkFile }}
+
+      - name: Download Java (graalvm@11)
+        id: download-java-graalvm-11
+        if: matrix.java == 'graalvm@11'
+        uses: typelevel/download-java@v1
+        with:
+          distribution: graalvm
+          java-version: 11
 
-      - name: Setup GraalVM (graal_20.3.1@11)
-        if: matrix.java == 'graal_20.3.1@11'
-        uses: DeLaGuardo/setup-graalvm@5.0
+      - name: Setup Java (graalvm@11)
+        if: matrix.java == 'graalvm@11'
+        uses: actions/setup-java@v2
         with:
-          graalvm: 20.3.1
-          java: java11
+          distribution: jdkfile
+          java-version: 11
+          jdkFile: ${{ steps.download-java-graalvm-11.outputs.jdkFile }}
 
       - name: Cache sbt
         uses: actions/cache@v2
@@ -269,13 +501,13 @@ jobs:
             ~/Library/Caches/Coursier/v1
           key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
 
-      - name: Setup Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: 2.7
-
-      - name: Setup Jekyll
-        run: gem install jekyll -v 4.0.0
+      - name: Generate site
+        run: sbt '++${{ matrix.scala }}' docs/tlSite
 
-      - name: Build the microsite
-        run: sbt ++${{ matrix.scala }} docs/makeMicrosite
+      - name: Publish site
+        if: github.event_name != 'pull_request' && github.ref == 'refs/heads/main'
+        uses: peaceiris/actions-gh-pages@v3.8.0
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: site/target/docs/site
+          keep_files: true
diff --git a/.scalafmt.conf b/.scalafmt.conf
index 752b25c4d0..b28dbc616d 100644
--- a/.scalafmt.conf
+++ b/.scalafmt.conf
@@ -19,7 +19,7 @@ fileOverride {
   "glob:**/src/{main,test}/scala-2.12/**" {
     runner.dialect = scala212source3
   }
-  "glob:**/src/{main,test}/scala-3.x/**" {
+  "glob:**/src/{main,test}/scala-3/**" {
     runner.dialect = scala3
   }
 }
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 4e91f63914..01c2b75824 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -24,7 +24,7 @@ skip these steps and jump straight to submitting a pull request.
 
  1. [Find something that belongs in cats](#find-something-that-belongs-in-cats)
  2. [Let us know you are working on it](#let-us-know-you-are-working-on-it)
- 3. [Build the project](#build-project)
+ 3. [Build the project](#build-the-project)
  4. [Implement your contribution](#write-code)
  5. [Write tests](#write-tests)
  6. [Write documentation](#contributing-documentation)
@@ -133,7 +133,7 @@ builds:
 
 ### Write code
 
-[See guidelines](https://typelevel.org/cats/guidelines.html).
+[See guidelines](guidelines.md).
 
 ### Attributions
 
@@ -151,11 +151,11 @@ for law checking, and imports all syntax and standard instances for convenience.
  [Discipline](https://github.com/typelevel/discipline), is the name of the test and will be output to the
  console as part of the test execution. By convention:
  - When checking laws, this parameter generally takes a form that describes the data type being tested.
- For example the name *"Validated[String, Int]"* might be used when testing a type class instance
+ For example the name `"Validated[String, Int]"` might be used when testing a type class instance
  that the `Validated` data type supports.
  - An exception to this is serializability tests, where the type class name is also included in the name.
  For example, in the case of `Validated`, the serializability test would take the form,
- *"Applicative[Validated[String, Int]]"*, to indicate that this test is verifying that the `Applicative`
+ `"Applicative[Validated[String, Int]]"`, to indicate that this test is verifying that the `Applicative`
  type class instance for the `Validated` data type is serializable.
  - This convention helps to ensure clear and easy to understand output, with minimal duplication in the output.
 - It is also a goal that, for every combination of data type and supported type class instance:
@@ -187,9 +187,6 @@ As a side note, the latter command uses [sbt-mima](https://github.com/lightbend/
 ### source for the documentation
 The documentation for this website is stored alongside the source, in the [docs subproject](https://github.com/typelevel/cats/tree/main/docs).
 
-* The source for the tut compiled pages is in `docs/src/main/mdoc`
-* The menu structure for these pages is in `docs/src/main/resources/microsite/data/menu.yml`
-
 ### Generating the Site
 
 The microsite generation requires a specific scala version that might
@@ -199,27 +196,11 @@ workflow to discover the proper version:
 command](https://github.com/typelevel/cats/blob/main/.github/workflows/ci.yml#L281)
 
 At the moment the command is:
-`sbt ++2.12.15 docs/makeMicrosite`
+`sbt ++2.12.15 docs/tlSite`
 
 ### Previewing the site
 
-1. Install jekyll locally. Depending on your platform, you might do this with:
-
-    `yum install jekyll`
-
-    `apt-get install ruby-full; gem install jekyll`
-
-    `gem install jekyll`
-
-    Or just dropping into a `nix-shell` if you are using the [Nix Cats development environment](#nix-cats-development-environment).
-
-2. In a shell, navigate to the generated site directory in `cats-docs/target/site`
-
-3. Start jekyll with `jekyll serve -b /cats`
-
-4. Navigate to http://localhost:4000/cats/ in your browser
-
-5. Make changes to your site, and run `sbt docs/makeMicrosite` to regenerate the site. The changes should be reflected as soon as you run `makeMicrosite`.
+Run `docs/tlSitePreview` in the sbt console. This will start a preview server at http://localhost:4242/ that will automatically refresh as you make edits.
 
 ### Compiler verified documentation
 
diff --git a/README.md b/README.md
index 96b09b6170..dca30617e1 100644
--- a/README.md
+++ b/README.md
@@ -11,9 +11,9 @@
 Cats is a library which provides abstractions for functional programming in the [Scala programming language](https://scala-lang.org).
 
 Scala supports both object-oriented and functional programming, and this is reflected in the hybrid approach of the
-standard library. Cats strives to provide functional programming abstractions that are core, [binary compatible](http://typelevel.org/cats/#binary-compatibility-and-versioning), [modular](http://typelevel.org/cats/motivations#modularity), [approachable](http://typelevel.org/cats/motivations#approachability) and [efficient](http://typelevel.org//cats/motivations#efficiency). A broader goal of Cats is to provide a foundation for an [ecosystem of pure, typeful libraries](https://typelevel.org/cats/#ecosystem) to support functional programming in Scala applications.
+standard library. Cats strives to provide functional programming abstractions that are core, [binary compatible](#binary-compatibility-and-versioning), [modular](https://typelevel.org/cats/motivations.html#modularity), [approachable](https://typelevel.org/cats/motivations.html#approachability) and [efficient](https://typelevel.org/cats/motivations.html#efficiency). A broader goal of Cats is to provide a foundation for an [ecosystem of pure, typeful libraries](https://typelevel.org/cats/typelevelEcosystem.html) to support functional programming in Scala applications.
 
-For more detail about Cats' motivations, go [here](http://typelevel.org/cats/motivations).
+For more detail about Cats' motivations, go [here](https://typelevel.org/cats/motivations.html).
 
 ### Why "cats"?
 
@@ -26,7 +26,7 @@ Regardless, you do not need to know anything about category theory to use Cats.
 ### Code Contributors
 
 This project exists thanks to [all the people who contribute](https://github.com/typelevel/cats/graphs/contributors). We welcome contributions to Cats and would love for you to help build
-Cats. See our [contributor guide](https://typelevel.org/cats/contributing.html) for more
+Cats. See our [contributor guide](CONTRIBUTING.md) for more
 information about how you can get involved as a developer. If you are looking for something to start with, [here is a beginner friendly list](https://github.com/typelevel/cats/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22).
 
 ### Financial Contributors
@@ -36,31 +36,31 @@ information about how you can get involved as a developer. If you are looking fo
 <h4>Platinum Sponsors</h4>
 <a href="https://opencollective.com/typelevel/contribute/platinum-sposor-12420/checkout">Platinum sponsorship</a> starts at $950 USD/month.
 <div id="platinum-sponsors">
-  <noscript>Platinum Sponsors appear here at <a href="https://typelevel.org/cats/">https://typelevel.org/cats</a></noscript>
+  <noscript>Platinum Sponsors appear here at <a href="">https://typelevel.org/cats</a></noscript>
 </div>
 
 <h4>Gold Sponsors</h4>
 <a href="https://opencollective.com/typelevel/contribute/gold-sponsor-12419/checkout">Gold Sponsorship</a> starts at $420 USD/month.
 <div id="gold-sponsors">
-  <noscript>Gold Sponsors appear here at <a href="https://typelevel.org/cats/">https://typelevel.org/cats</a></noscript>
+  <noscript>Gold Sponsors appear here at <a href="">https://typelevel.org/cats</a></noscript>
 </div>
 
 <h4>Silver Sponsors</h4>
 <a href="https://opencollective.com/typelevel/contribute/silver-sponsor-11780/checkout">Silver Sponsorship</a> starts at $180 USD/month.
 <div id="silver-sponsors">
-  <noscript>Silver Sponsors appear here at <a href="https://typelevel.org/cats/">https://typelevel.org/cats</a></noscript>
+  <noscript>Silver Sponsors appear here at <a href="">https://typelevel.org/cats</a></noscript>
 </div>
 
 <h4>Backers</h4>
 Become a <a href="https://opencollective.com/typelevel/contribute/backer-11779/checkout">Backer</a> with a recurring donation of just $5 USD/month.
 <div id="backers">
-  <noscript>Backers appear here at <a href="https://typelevel.org/cats/">https://typelevel.org/cats</a></noscript>
+  <noscript>Backers appear here at <a href="">https://typelevel.org/cats</a></noscript>
 </div>
 
 <h4>Other contributors</h4>
 We thankfully accept <a href="https://opencollective.com/typelevel/donate">one-time and recurring</a> contributions as well.
 <div id="other-contributors">
-  <noscript>Other contributors appear here at <a href="https://typelevel.org/cats/">https://typelevel.org/cats</a></noscript>
+  <noscript>Other contributors appear here at <a href="">https://typelevel.org/cats</a></noscript>
 </div>
 
 <script src="/cats/js/sponsors.js"></script>
@@ -120,13 +120,13 @@ Links:
 
 1. Website: [typelevel.org/cats/](https://typelevel.org/cats/)
 2. ScalaDoc: [typelevel.org/cats/api/](https://typelevel.org/cats/api/)
-3. Type classes: [typelevel.org/cats/typeclasses](https://typelevel.org/cats/typeclasses.html)
-4. Data types: [typelevel.org/cats/datatypes.html](https://typelevel.org/cats/datatypes.html)
-5. Algebra overview: [typelevel.org/cats/algebra.html](https://typelevel.org/cats/algebra.html)
-6. Glossary: [typelevel.org/cats/nomenclature.html](https://typelevel.org/cats/nomenclature.html)
-7. Resources for Learners: [typelevel.org/cats/resources_for_learners.html](https://typelevel.org/cats/resources_for_learners.html)
-8. FAQ: [typelevel.org/cats/faq.html](https://typelevel.org/cats/faq.html)
-9. The Typelevel Ecosystem: [typelevel.org/cats/typelevelEcosystem.html](https://typelevel.org/cats/typelevelEcosystem.html)
+3. Type classes: [typelevel.org/cats/typeclasses](https://typelevel.org/cats/typeclasses.md)
+4. Data types: [typelevel.org/cats/datatypes.html](https://typelevel.org/cats/datatypes.md)
+5. Algebra overview: [typelevel.org/cats/algebra.html](https://typelevel.org/cats/algebra.md)
+6. Glossary: [typelevel.org/cats/nomenclature.html](https://typelevel.org/cats/nomenclature.md)
+7. Resources for Learners: [typelevel.org/cats/resources_for_learners.html](https://typelevel.org/cats/resources_for_learners.md)
+8. FAQ: [typelevel.org/cats/faq.html](https://typelevel.org/cats/faq.md)
+9. The Typelevel Ecosystem: [typelevel.org/cats/typelevelEcosystem.html](https://typelevel.org/cats/typelevelEcosystem.md)
 
 ### Community
 
@@ -202,7 +202,7 @@ Here's a (non-exhaustive) list of companies that use Cats in production. Don't s
 - [Code Dx](https://codedx.com/)
 - [Codecentric](https://codecentric.de)
 - [Colisweb](https://www.colisweb.com/)
-- [CompStak](compstak.com)
+- [CompStak](https://compstak.com)
 - [Coya](https://coya.com/)
 - [Datum Brain](https://datumbrain.com/)
 - [Disney](https://disney.com/)
@@ -335,7 +335,7 @@ relax this to a single sign-off. More detail in the [process document](https://g
 
 All code is available to you under the MIT license, available at
 http://opensource.org/licenses/mit-license.php and also in the
-[COPYING](COPYING) file. The design is informed by many other
+[COPYING](https://github.com/typelevel/cats/blob/main/COPYING) file. The design is informed by many other
 projects, in particular [Scalaz](https://github.com/scalaz/scalaz).
 
 Copyright the maintainers, 2015-2022.
diff --git a/algebra-core/src/main/scala/algebra/Priority.scala b/algebra-core/src/main/scala/algebra/Priority.scala
index 1c5f930273..b48ab1f7a8 100644
--- a/algebra-core/src/main/scala/algebra/Priority.scala
+++ b/algebra-core/src/main/scala/algebra/Priority.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 
 import scala.annotation.nowarn
diff --git a/algebra-core/src/main/scala/algebra/instances/StaticMethods.scala b/algebra-core/src/main/scala/algebra/instances/StaticMethods.scala
index 02eb30d555..18f0edf5cc 100644
--- a/algebra-core/src/main/scala/algebra/instances/StaticMethods.scala
+++ b/algebra-core/src/main/scala/algebra/instances/StaticMethods.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.instances
 
 import scala.annotation.tailrec
diff --git a/algebra-core/src/main/scala/algebra/instances/all.scala b/algebra-core/src/main/scala/algebra/instances/all.scala
index be730a79cf..953c1beec4 100644
--- a/algebra-core/src/main/scala/algebra/instances/all.scala
+++ b/algebra-core/src/main/scala/algebra/instances/all.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/array.scala b/algebra-core/src/main/scala/algebra/instances/array.scala
index 2e4a27226a..d2b451790b 100644
--- a/algebra-core/src/main/scala/algebra/instances/array.scala
+++ b/algebra-core/src/main/scala/algebra/instances/array.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/bigDecimal.scala b/algebra-core/src/main/scala/algebra/instances/bigDecimal.scala
index 89d7a6e3f2..e36e0438a7 100644
--- a/algebra-core/src/main/scala/algebra/instances/bigDecimal.scala
+++ b/algebra-core/src/main/scala/algebra/instances/bigDecimal.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/bigInt.scala b/algebra-core/src/main/scala/algebra/instances/bigInt.scala
index 3c5696319b..56aa584d4f 100644
--- a/algebra-core/src/main/scala/algebra/instances/bigInt.scala
+++ b/algebra-core/src/main/scala/algebra/instances/bigInt.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/bitSet.scala b/algebra-core/src/main/scala/algebra/instances/bitSet.scala
index a14e6a441b..b970848c56 100644
--- a/algebra-core/src/main/scala/algebra/instances/bitSet.scala
+++ b/algebra-core/src/main/scala/algebra/instances/bitSet.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/boolean.scala b/algebra-core/src/main/scala/algebra/instances/boolean.scala
index f4bf0e295a..7dd0a0e548 100644
--- a/algebra-core/src/main/scala/algebra/instances/boolean.scala
+++ b/algebra-core/src/main/scala/algebra/instances/boolean.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/byte.scala b/algebra-core/src/main/scala/algebra/instances/byte.scala
index 4e3197fe67..85f5fd924f 100644
--- a/algebra-core/src/main/scala/algebra/instances/byte.scala
+++ b/algebra-core/src/main/scala/algebra/instances/byte.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/char.scala b/algebra-core/src/main/scala/algebra/instances/char.scala
index 25701780a3..dc1515a437 100644
--- a/algebra-core/src/main/scala/algebra/instances/char.scala
+++ b/algebra-core/src/main/scala/algebra/instances/char.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/double.scala b/algebra-core/src/main/scala/algebra/instances/double.scala
index 9c59145f79..c9f1fa6656 100644
--- a/algebra-core/src/main/scala/algebra/instances/double.scala
+++ b/algebra-core/src/main/scala/algebra/instances/double.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/float.scala b/algebra-core/src/main/scala/algebra/instances/float.scala
index a8267dd7ec..80e6bcd39f 100644
--- a/algebra-core/src/main/scala/algebra/instances/float.scala
+++ b/algebra-core/src/main/scala/algebra/instances/float.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/int.scala b/algebra-core/src/main/scala/algebra/instances/int.scala
index 77762f7ac7..f9fff644d8 100644
--- a/algebra-core/src/main/scala/algebra/instances/int.scala
+++ b/algebra-core/src/main/scala/algebra/instances/int.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/list.scala b/algebra-core/src/main/scala/algebra/instances/list.scala
index 7bf52cbc81..02acc1463e 100644
--- a/algebra-core/src/main/scala/algebra/instances/list.scala
+++ b/algebra-core/src/main/scala/algebra/instances/list.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/long.scala b/algebra-core/src/main/scala/algebra/instances/long.scala
index 3c5f917b9c..0fb2061df3 100644
--- a/algebra-core/src/main/scala/algebra/instances/long.scala
+++ b/algebra-core/src/main/scala/algebra/instances/long.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/map.scala b/algebra-core/src/main/scala/algebra/instances/map.scala
index 026c51998d..fc0ca634a4 100644
--- a/algebra-core/src/main/scala/algebra/instances/map.scala
+++ b/algebra-core/src/main/scala/algebra/instances/map.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/option.scala b/algebra-core/src/main/scala/algebra/instances/option.scala
index d6db1b1e05..64203293c7 100644
--- a/algebra-core/src/main/scala/algebra/instances/option.scala
+++ b/algebra-core/src/main/scala/algebra/instances/option.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/set.scala b/algebra-core/src/main/scala/algebra/instances/set.scala
index c2eba6f151..570ebe8597 100644
--- a/algebra-core/src/main/scala/algebra/instances/set.scala
+++ b/algebra-core/src/main/scala/algebra/instances/set.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/short.scala b/algebra-core/src/main/scala/algebra/instances/short.scala
index e40f36cb53..a004493c02 100644
--- a/algebra-core/src/main/scala/algebra/instances/short.scala
+++ b/algebra-core/src/main/scala/algebra/instances/short.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/string.scala b/algebra-core/src/main/scala/algebra/instances/string.scala
index 8e9817035f..c743dcbe5b 100644
--- a/algebra-core/src/main/scala/algebra/instances/string.scala
+++ b/algebra-core/src/main/scala/algebra/instances/string.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/tuple.scala b/algebra-core/src/main/scala/algebra/instances/tuple.scala
index a73a87c67a..7a05c0aed0 100644
--- a/algebra-core/src/main/scala/algebra/instances/tuple.scala
+++ b/algebra-core/src/main/scala/algebra/instances/tuple.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/instances/unit.scala b/algebra-core/src/main/scala/algebra/instances/unit.scala
index 6ee3fcedb8..1fea97a6f3 100644
--- a/algebra-core/src/main/scala/algebra/instances/unit.scala
+++ b/algebra-core/src/main/scala/algebra/instances/unit.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package instances
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/Bool.scala b/algebra-core/src/main/scala/algebra/lattice/Bool.scala
index a1b5dd2ff0..cae34de0cf 100644
--- a/algebra-core/src/main/scala/algebra/lattice/Bool.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/Bool.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/BoundedDistributiveLattice.scala b/algebra-core/src/main/scala/algebra/lattice/BoundedDistributiveLattice.scala
index 6d3838bfb9..a439e993b2 100644
--- a/algebra-core/src/main/scala/algebra/lattice/BoundedDistributiveLattice.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/BoundedDistributiveLattice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/BoundedJoinSemilattice.scala b/algebra-core/src/main/scala/algebra/lattice/BoundedJoinSemilattice.scala
index dc8189a3f9..f07c09c10b 100644
--- a/algebra-core/src/main/scala/algebra/lattice/BoundedJoinSemilattice.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/BoundedJoinSemilattice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/BoundedLattice.scala b/algebra-core/src/main/scala/algebra/lattice/BoundedLattice.scala
index f1dab0da4a..c16e2b0a20 100644
--- a/algebra-core/src/main/scala/algebra/lattice/BoundedLattice.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/BoundedLattice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/BoundedMeetSemilattice.scala b/algebra-core/src/main/scala/algebra/lattice/BoundedMeetSemilattice.scala
index 1b2f37a6ef..729693312a 100644
--- a/algebra-core/src/main/scala/algebra/lattice/BoundedMeetSemilattice.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/BoundedMeetSemilattice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/DeMorgan.scala b/algebra-core/src/main/scala/algebra/lattice/DeMorgan.scala
index e5b30906a5..27da092d49 100644
--- a/algebra-core/src/main/scala/algebra/lattice/DeMorgan.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/DeMorgan.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/DistributiveLattice.scala b/algebra-core/src/main/scala/algebra/lattice/DistributiveLattice.scala
index c2a764d8c7..f01177f59c 100644
--- a/algebra-core/src/main/scala/algebra/lattice/DistributiveLattice.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/DistributiveLattice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/GenBool.scala b/algebra-core/src/main/scala/algebra/lattice/GenBool.scala
index a939610ef2..ce535ff167 100644
--- a/algebra-core/src/main/scala/algebra/lattice/GenBool.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/GenBool.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/Heyting.scala b/algebra-core/src/main/scala/algebra/lattice/Heyting.scala
index d5dbe0c0a0..4afd255b2a 100644
--- a/algebra-core/src/main/scala/algebra/lattice/Heyting.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/Heyting.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/JoinSemilattice.scala b/algebra-core/src/main/scala/algebra/lattice/JoinSemilattice.scala
index ae7c019ae5..834ca8ca1f 100644
--- a/algebra-core/src/main/scala/algebra/lattice/JoinSemilattice.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/JoinSemilattice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/Lattice.scala b/algebra-core/src/main/scala/algebra/lattice/Lattice.scala
index 040f3d66fd..f04e94c067 100644
--- a/algebra-core/src/main/scala/algebra/lattice/Lattice.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/Lattice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/Logic.scala b/algebra-core/src/main/scala/algebra/lattice/Logic.scala
index 1fd07eb8c0..b5b5380be6 100644
--- a/algebra-core/src/main/scala/algebra/lattice/Logic.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/Logic.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/lattice/MeetSemilattice.scala b/algebra-core/src/main/scala/algebra/lattice/MeetSemilattice.scala
index 1dc72df29f..b1dc850508 100644
--- a/algebra-core/src/main/scala/algebra/lattice/MeetSemilattice.scala
+++ b/algebra-core/src/main/scala/algebra/lattice/MeetSemilattice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package lattice
 
diff --git a/algebra-core/src/main/scala/algebra/package.scala b/algebra-core/src/main/scala/algebra/package.scala
index 0f720497ef..4a06182e41 100644
--- a/algebra-core/src/main/scala/algebra/package.scala
+++ b/algebra-core/src/main/scala/algebra/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package object algebra {
 
   type Band[A] = cats.kernel.Band[A]
diff --git a/algebra-core/src/main/scala/algebra/ring/Additive.scala b/algebra-core/src/main/scala/algebra/ring/Additive.scala
index ef5acc7801..94d3081d4c 100644
--- a/algebra-core/src/main/scala/algebra/ring/Additive.scala
+++ b/algebra-core/src/main/scala/algebra/ring/Additive.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/BoolRing.scala b/algebra-core/src/main/scala/algebra/ring/BoolRing.scala
index 354c336d44..f2cc56c64c 100644
--- a/algebra-core/src/main/scala/algebra/ring/BoolRing.scala
+++ b/algebra-core/src/main/scala/algebra/ring/BoolRing.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/BoolRng.scala b/algebra-core/src/main/scala/algebra/ring/BoolRng.scala
index 78ff3d0c73..72e986daac 100644
--- a/algebra-core/src/main/scala/algebra/ring/BoolRng.scala
+++ b/algebra-core/src/main/scala/algebra/ring/BoolRng.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/CommutativeRig.scala b/algebra-core/src/main/scala/algebra/ring/CommutativeRig.scala
index 751b2d5950..513f4ad471 100644
--- a/algebra-core/src/main/scala/algebra/ring/CommutativeRig.scala
+++ b/algebra-core/src/main/scala/algebra/ring/CommutativeRig.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/CommutativeRing.scala b/algebra-core/src/main/scala/algebra/ring/CommutativeRing.scala
index 59d03576c0..469e7085cc 100644
--- a/algebra-core/src/main/scala/algebra/ring/CommutativeRing.scala
+++ b/algebra-core/src/main/scala/algebra/ring/CommutativeRing.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/CommutativeRng.scala b/algebra-core/src/main/scala/algebra/ring/CommutativeRng.scala
index f7ad06d4f4..e219579d5a 100644
--- a/algebra-core/src/main/scala/algebra/ring/CommutativeRng.scala
+++ b/algebra-core/src/main/scala/algebra/ring/CommutativeRng.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/CommutativeSemifield.scala b/algebra-core/src/main/scala/algebra/ring/CommutativeSemifield.scala
index 796b9b0865..67655be7a7 100644
--- a/algebra-core/src/main/scala/algebra/ring/CommutativeSemifield.scala
+++ b/algebra-core/src/main/scala/algebra/ring/CommutativeSemifield.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/CommutativeSemiring.scala b/algebra-core/src/main/scala/algebra/ring/CommutativeSemiring.scala
index 571e674e12..efdeb65e9b 100644
--- a/algebra-core/src/main/scala/algebra/ring/CommutativeSemiring.scala
+++ b/algebra-core/src/main/scala/algebra/ring/CommutativeSemiring.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/DivisionRing.scala b/algebra-core/src/main/scala/algebra/ring/DivisionRing.scala
index 5fb6761528..75446fcd7a 100644
--- a/algebra-core/src/main/scala/algebra/ring/DivisionRing.scala
+++ b/algebra-core/src/main/scala/algebra/ring/DivisionRing.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/EuclideanRing.scala b/algebra-core/src/main/scala/algebra/ring/EuclideanRing.scala
index 450e34e90f..60fbf80765 100644
--- a/algebra-core/src/main/scala/algebra/ring/EuclideanRing.scala
+++ b/algebra-core/src/main/scala/algebra/ring/EuclideanRing.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/Field.scala b/algebra-core/src/main/scala/algebra/ring/Field.scala
index 86ad93d781..41d3f87be1 100644
--- a/algebra-core/src/main/scala/algebra/ring/Field.scala
+++ b/algebra-core/src/main/scala/algebra/ring/Field.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/GCDRing.scala b/algebra-core/src/main/scala/algebra/ring/GCDRing.scala
index a2031f36a4..db76d6e236 100644
--- a/algebra-core/src/main/scala/algebra/ring/GCDRing.scala
+++ b/algebra-core/src/main/scala/algebra/ring/GCDRing.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/Multiplicative.scala b/algebra-core/src/main/scala/algebra/ring/Multiplicative.scala
index d9d51014eb..8d283e3ceb 100644
--- a/algebra-core/src/main/scala/algebra/ring/Multiplicative.scala
+++ b/algebra-core/src/main/scala/algebra/ring/Multiplicative.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/Rig.scala b/algebra-core/src/main/scala/algebra/ring/Rig.scala
index 532866acaf..04734999ea 100644
--- a/algebra-core/src/main/scala/algebra/ring/Rig.scala
+++ b/algebra-core/src/main/scala/algebra/ring/Rig.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/Ring.scala b/algebra-core/src/main/scala/algebra/ring/Ring.scala
index 6606817046..f295b13153 100644
--- a/algebra-core/src/main/scala/algebra/ring/Ring.scala
+++ b/algebra-core/src/main/scala/algebra/ring/Ring.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/Rng.scala b/algebra-core/src/main/scala/algebra/ring/Rng.scala
index 94585327b5..19c668c2b3 100644
--- a/algebra-core/src/main/scala/algebra/ring/Rng.scala
+++ b/algebra-core/src/main/scala/algebra/ring/Rng.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/Semifield.scala b/algebra-core/src/main/scala/algebra/ring/Semifield.scala
index 31eb3fb41a..b19ef820b6 100644
--- a/algebra-core/src/main/scala/algebra/ring/Semifield.scala
+++ b/algebra-core/src/main/scala/algebra/ring/Semifield.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/Semiring.scala b/algebra-core/src/main/scala/algebra/ring/Semiring.scala
index ef9ca42420..d389b3816f 100644
--- a/algebra-core/src/main/scala/algebra/ring/Semiring.scala
+++ b/algebra-core/src/main/scala/algebra/ring/Semiring.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package ring
 
diff --git a/algebra-core/src/main/scala/algebra/ring/Signed.scala b/algebra-core/src/main/scala/algebra/ring/Signed.scala
index 1326cb24a3..e7d3e1b061 100644
--- a/algebra-core/src/main/scala/algebra/ring/Signed.scala
+++ b/algebra-core/src/main/scala/algebra/ring/Signed.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.ring
 
 import algebra.{CommutativeMonoid, Eq, Order}
diff --git a/algebra-core/src/main/scala/algebra/ring/TruncatedDivision.scala b/algebra-core/src/main/scala/algebra/ring/TruncatedDivision.scala
index 443bcdb387..5480cef689 100644
--- a/algebra-core/src/main/scala/algebra/ring/TruncatedDivision.scala
+++ b/algebra-core/src/main/scala/algebra/ring/TruncatedDivision.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.ring
 
 import scala.{specialized => sp}
diff --git a/algebra-core/src/test/scala/algebra/Instances.scala b/algebra-core/src/test/scala/algebra/Instances.scala
index b7dd2e1854..119c50bd9c 100644
--- a/algebra-core/src/test/scala/algebra/Instances.scala
+++ b/algebra-core/src/test/scala/algebra/Instances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 
 object Instances {
diff --git a/algebra-core/src/test/scala/algebra/ring/RingTest.scala b/algebra-core/src/test/scala/algebra/ring/RingTest.scala
index 865a3e56f8..3be03abc4c 100644
--- a/algebra-core/src/test/scala/algebra/ring/RingTest.scala
+++ b/algebra-core/src/test/scala/algebra/ring/RingTest.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.ring
 
 import algebra.instances.bigInt._
diff --git a/algebra-laws/js/src/main/scala/algebra/laws/platform/Platform.scala b/algebra-laws/js/src/main/scala/algebra/laws/platform/Platform.scala
index adeea18df3..b22423f7bc 100644
--- a/algebra-laws/js/src/main/scala/algebra/laws/platform/Platform.scala
+++ b/algebra-laws/js/src/main/scala/algebra/laws/platform/Platform.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws.platform
 
 private[laws] object Platform {
diff --git a/algebra-laws/jvm/src/main/scala/algebra/laws/platform/Platform.scala b/algebra-laws/jvm/src/main/scala/algebra/laws/platform/Platform.scala
index e4a14708bc..ee3c3bc40c 100644
--- a/algebra-laws/jvm/src/main/scala/algebra/laws/platform/Platform.scala
+++ b/algebra-laws/jvm/src/main/scala/algebra/laws/platform/Platform.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws.platform
 
 private[laws] object Platform {
diff --git a/algebra-laws/native/src/main/scala/algebra/laws/platform/Platform.scala b/algebra-laws/native/src/main/scala/algebra/laws/platform/Platform.scala
index dac1c22e89..4d80a6d80e 100644
--- a/algebra-laws/native/src/main/scala/algebra/laws/platform/Platform.scala
+++ b/algebra-laws/native/src/main/scala/algebra/laws/platform/Platform.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws.platform
 
 private[laws] object Platform {
diff --git a/algebra-laws/shared/src/main/scala/algebra/laws/BaseLaws.scala b/algebra-laws/shared/src/main/scala/algebra/laws/BaseLaws.scala
index 11b2c89a3a..c83ce69bae 100644
--- a/algebra-laws/shared/src/main/scala/algebra/laws/BaseLaws.scala
+++ b/algebra-laws/shared/src/main/scala/algebra/laws/BaseLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws
 
 import cats.kernel._
diff --git a/algebra-laws/shared/src/main/scala/algebra/laws/CheckSupport.scala b/algebra-laws/shared/src/main/scala/algebra/laws/CheckSupport.scala
index 6f95634f97..f67ba3cc0a 100644
--- a/algebra-laws/shared/src/main/scala/algebra/laws/CheckSupport.scala
+++ b/algebra-laws/shared/src/main/scala/algebra/laws/CheckSupport.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws
 
 /**
diff --git a/algebra-laws/shared/src/main/scala/algebra/laws/DeMorganLaws.scala b/algebra-laws/shared/src/main/scala/algebra/laws/DeMorganLaws.scala
index cd75fd8092..a0ed8e8935 100644
--- a/algebra-laws/shared/src/main/scala/algebra/laws/DeMorganLaws.scala
+++ b/algebra-laws/shared/src/main/scala/algebra/laws/DeMorganLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws
 
 import algebra._
diff --git a/algebra-laws/shared/src/main/scala/algebra/laws/GroupLaws.scala b/algebra-laws/shared/src/main/scala/algebra/laws/GroupLaws.scala
index 14fac2e575..75860c8bee 100644
--- a/algebra-laws/shared/src/main/scala/algebra/laws/GroupLaws.scala
+++ b/algebra-laws/shared/src/main/scala/algebra/laws/GroupLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws
 
 import cats.kernel._
diff --git a/algebra-laws/shared/src/main/scala/algebra/laws/LatticeLaws.scala b/algebra-laws/shared/src/main/scala/algebra/laws/LatticeLaws.scala
index 76212e1733..631ae07c13 100644
--- a/algebra-laws/shared/src/main/scala/algebra/laws/LatticeLaws.scala
+++ b/algebra-laws/shared/src/main/scala/algebra/laws/LatticeLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws
 
 import algebra._
diff --git a/algebra-laws/shared/src/main/scala/algebra/laws/LatticePartialOrderLaws.scala b/algebra-laws/shared/src/main/scala/algebra/laws/LatticePartialOrderLaws.scala
index db3d17a649..f218e32eb2 100644
--- a/algebra-laws/shared/src/main/scala/algebra/laws/LatticePartialOrderLaws.scala
+++ b/algebra-laws/shared/src/main/scala/algebra/laws/LatticePartialOrderLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws
 
 import algebra._
diff --git a/algebra-laws/shared/src/main/scala/algebra/laws/LogicLaws.scala b/algebra-laws/shared/src/main/scala/algebra/laws/LogicLaws.scala
index 7b42fe3ff7..cbab31e3ad 100644
--- a/algebra-laws/shared/src/main/scala/algebra/laws/LogicLaws.scala
+++ b/algebra-laws/shared/src/main/scala/algebra/laws/LogicLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws
 
 import algebra._
diff --git a/algebra-laws/shared/src/main/scala/algebra/laws/OrderLaws.scala b/algebra-laws/shared/src/main/scala/algebra/laws/OrderLaws.scala
index 5a2aecae10..80c3a6bc97 100644
--- a/algebra-laws/shared/src/main/scala/algebra/laws/OrderLaws.scala
+++ b/algebra-laws/shared/src/main/scala/algebra/laws/OrderLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws
 
 import cats.kernel._
diff --git a/algebra-laws/shared/src/main/scala/algebra/laws/RingLaws.scala b/algebra-laws/shared/src/main/scala/algebra/laws/RingLaws.scala
index 250febaf8d..ba562dc476 100644
--- a/algebra-laws/shared/src/main/scala/algebra/laws/RingLaws.scala
+++ b/algebra-laws/shared/src/main/scala/algebra/laws/RingLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package laws
 
diff --git a/algebra-laws/shared/src/main/scala/algebra/laws/Rules.scala b/algebra-laws/shared/src/main/scala/algebra/laws/Rules.scala
index 32a62bbc9e..62cf48669f 100644
--- a/algebra-laws/shared/src/main/scala/algebra/laws/Rules.scala
+++ b/algebra-laws/shared/src/main/scala/algebra/laws/Rules.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws
 
 import cats.kernel._
diff --git a/algebra-laws/shared/src/main/scala/algebra/laws/package.scala b/algebra-laws/shared/src/main/scala/algebra/laws/package.scala
index 304e97d17e..9d3d7109e4 100644
--- a/algebra-laws/shared/src/main/scala/algebra/laws/package.scala
+++ b/algebra-laws/shared/src/main/scala/algebra/laws/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 
 import org.scalacheck._
diff --git a/algebra-laws/shared/src/test/scala/algebra/laws/FPApprox.scala b/algebra-laws/shared/src/test/scala/algebra/laws/FPApprox.scala
index 0cedcd686e..0591c96f89 100644
--- a/algebra-laws/shared/src/test/scala/algebra/laws/FPApprox.scala
+++ b/algebra-laws/shared/src/test/scala/algebra/laws/FPApprox.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra.laws
 
 import java.lang.{Double => JDouble, Float => JFloat}
diff --git a/algebra-laws/shared/src/test/scala/algebra/laws/LawTests.scala b/algebra-laws/shared/src/test/scala/algebra/laws/LawTests.scala
index 2982b74a0d..e8601f9c1d 100644
--- a/algebra-laws/shared/src/test/scala/algebra/laws/LawTests.scala
+++ b/algebra-laws/shared/src/test/scala/algebra/laws/LawTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package laws
 
diff --git a/algebra-laws/shared/src/test/scala/algebra/laws/Rat.scala b/algebra-laws/shared/src/test/scala/algebra/laws/Rat.scala
index 8180c2c00b..c5520b9266 100644
--- a/algebra-laws/shared/src/test/scala/algebra/laws/Rat.scala
+++ b/algebra-laws/shared/src/test/scala/algebra/laws/Rat.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package laws
 
diff --git a/algebra-laws/shared/src/test/scala/algebra/laws/SimpleDeMorgan.scala b/algebra-laws/shared/src/test/scala/algebra/laws/SimpleDeMorgan.scala
index 70fa772cca..49bcb58542 100644
--- a/algebra-laws/shared/src/test/scala/algebra/laws/SimpleDeMorgan.scala
+++ b/algebra-laws/shared/src/test/scala/algebra/laws/SimpleDeMorgan.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package laws
 
diff --git a/algebra-laws/shared/src/test/scala/algebra/laws/SimpleHeyting.scala b/algebra-laws/shared/src/test/scala/algebra/laws/SimpleHeyting.scala
index 5b8d20ff65..60d245806a 100644
--- a/algebra-laws/shared/src/test/scala/algebra/laws/SimpleHeyting.scala
+++ b/algebra-laws/shared/src/test/scala/algebra/laws/SimpleHeyting.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package algebra
 package laws
 
diff --git a/alleycats-core/src/main/scala-2.12/alleycats/compat/IterableEmptyInstance.scala b/alleycats-core/src/main/scala-2.12/alleycats/compat/IterableEmptyInstance.scala
index f46a9595c4..f4bf82e3e5 100644
--- a/alleycats-core/src/main/scala-2.12/alleycats/compat/IterableEmptyInstance.scala
+++ b/alleycats-core/src/main/scala-2.12/alleycats/compat/IterableEmptyInstance.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package compat
 
diff --git a/alleycats-core/src/main/scala-2.12/alleycats/compat/scalaVersionSpecific.scala b/alleycats-core/src/main/scala-2.12/alleycats/compat/scalaVersionSpecific.scala
index 13db1ea447..bd3ad8091d 100644
--- a/alleycats-core/src/main/scala-2.12/alleycats/compat/scalaVersionSpecific.scala
+++ b/alleycats-core/src/main/scala-2.12/alleycats/compat/scalaVersionSpecific.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.compat
 import scala.annotation.{Annotation, StaticAnnotation}
 
diff --git a/alleycats-core/src/main/scala-2.13+/alleycats/compat/IterableEmptyInstance.scala b/alleycats-core/src/main/scala-2.13+/alleycats/compat/IterableEmptyInstance.scala
index 45350dde5b..b162066b4b 100644
--- a/alleycats-core/src/main/scala-2.13+/alleycats/compat/IterableEmptyInstance.scala
+++ b/alleycats-core/src/main/scala-2.13+/alleycats/compat/IterableEmptyInstance.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package compat
 
diff --git a/alleycats-core/src/main/scala-2.13+/alleycats/compat/scalaVersionSpecific.scala b/alleycats-core/src/main/scala-2.13+/alleycats/compat/scalaVersionSpecific.scala
index 18e1715db3..d3608008b1 100644
--- a/alleycats-core/src/main/scala-2.13+/alleycats/compat/scalaVersionSpecific.scala
+++ b/alleycats-core/src/main/scala-2.13+/alleycats/compat/scalaVersionSpecific.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package compat
 import scala.annotation.{Annotation, StaticAnnotation}
diff --git a/alleycats-core/src/main/scala/alleycats/ConsK.scala b/alleycats-core/src/main/scala/alleycats/ConsK.scala
index 1b3e17b65a..cb3621030f 100644
--- a/alleycats-core/src/main/scala/alleycats/ConsK.scala
+++ b/alleycats-core/src/main/scala/alleycats/ConsK.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 
 import cats.SemigroupK
diff --git a/alleycats-core/src/main/scala/alleycats/Empty.scala b/alleycats-core/src/main/scala/alleycats/Empty.scala
index de40ca0c2a..0631dbebc1 100644
--- a/alleycats-core/src/main/scala/alleycats/Empty.scala
+++ b/alleycats-core/src/main/scala/alleycats/Empty.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 
 import cats.{Eq, Monoid}
diff --git a/alleycats-core/src/main/scala/alleycats/EmptyK.scala b/alleycats-core/src/main/scala/alleycats/EmptyK.scala
index 3e111883fa..3fa6eabbd6 100644
--- a/alleycats-core/src/main/scala/alleycats/EmptyK.scala
+++ b/alleycats-core/src/main/scala/alleycats/EmptyK.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 
 import simulacrum.typeclass
diff --git a/alleycats-core/src/main/scala/alleycats/Extract.scala b/alleycats-core/src/main/scala/alleycats/Extract.scala
index 9feb40b054..2df7094fbb 100644
--- a/alleycats-core/src/main/scala/alleycats/Extract.scala
+++ b/alleycats-core/src/main/scala/alleycats/Extract.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 
 import cats.{CoflatMap, Comonad}
diff --git a/alleycats-core/src/main/scala/alleycats/One.scala b/alleycats-core/src/main/scala/alleycats/One.scala
index 470c5e64de..78a54cfcca 100644
--- a/alleycats-core/src/main/scala/alleycats/One.scala
+++ b/alleycats-core/src/main/scala/alleycats/One.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 
 import cats.Eq
diff --git a/alleycats-core/src/main/scala/alleycats/Pure.scala b/alleycats-core/src/main/scala/alleycats/Pure.scala
index ac394dbefc..e5f2011f0e 100644
--- a/alleycats-core/src/main/scala/alleycats/Pure.scala
+++ b/alleycats-core/src/main/scala/alleycats/Pure.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 
 import cats.{Applicative, FlatMap, Monad}
diff --git a/alleycats-core/src/main/scala/alleycats/ReferentialEq.scala b/alleycats-core/src/main/scala/alleycats/ReferentialEq.scala
index e922612207..4dc9065c45 100644
--- a/alleycats-core/src/main/scala/alleycats/ReferentialEq.scala
+++ b/alleycats-core/src/main/scala/alleycats/ReferentialEq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 
 import cats.Eq
diff --git a/alleycats-core/src/main/scala/alleycats/SystemIdentityHash.scala b/alleycats-core/src/main/scala/alleycats/SystemIdentityHash.scala
index 170e07f8c8..10504f1398 100644
--- a/alleycats-core/src/main/scala/alleycats/SystemIdentityHash.scala
+++ b/alleycats-core/src/main/scala/alleycats/SystemIdentityHash.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 
 import cats.Hash
diff --git a/alleycats-core/src/main/scala/alleycats/Zero.scala b/alleycats-core/src/main/scala/alleycats/Zero.scala
index 7950b8ded6..fe4b5b52e1 100644
--- a/alleycats-core/src/main/scala/alleycats/Zero.scala
+++ b/alleycats-core/src/main/scala/alleycats/Zero.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 
 import cats.Eq
diff --git a/alleycats-core/src/main/scala/alleycats/std/all.scala b/alleycats-core/src/main/scala/alleycats/std/all.scala
index 843b3f40ed..6ae0fa8e12 100644
--- a/alleycats-core/src/main/scala/alleycats/std/all.scala
+++ b/alleycats-core/src/main/scala/alleycats/std/all.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package std
 
diff --git a/alleycats-core/src/main/scala/alleycats/std/future.scala b/alleycats-core/src/main/scala/alleycats/std/future.scala
index 3ca16ab2d8..bee323ce33 100644
--- a/alleycats-core/src/main/scala/alleycats/std/future.scala
+++ b/alleycats-core/src/main/scala/alleycats/std/future.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package std
 
diff --git a/alleycats-core/src/main/scala/alleycats/std/iterable.scala b/alleycats-core/src/main/scala/alleycats/std/iterable.scala
index 218a917fa6..ebd85851f1 100644
--- a/alleycats-core/src/main/scala/alleycats/std/iterable.scala
+++ b/alleycats-core/src/main/scala/alleycats/std/iterable.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package std
 
diff --git a/alleycats-core/src/main/scala/alleycats/std/list.scala b/alleycats-core/src/main/scala/alleycats/std/list.scala
index e747d5e4fc..f6d1b0ef72 100644
--- a/alleycats-core/src/main/scala/alleycats/std/list.scala
+++ b/alleycats-core/src/main/scala/alleycats/std/list.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package std
 
diff --git a/alleycats-core/src/main/scala/alleycats/std/map.scala b/alleycats-core/src/main/scala/alleycats/std/map.scala
index f26538da61..b9e454a37f 100644
--- a/alleycats-core/src/main/scala/alleycats/std/map.scala
+++ b/alleycats-core/src/main/scala/alleycats/std/map.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package std
 
diff --git a/alleycats-core/src/main/scala/alleycats/std/option.scala b/alleycats-core/src/main/scala/alleycats/std/option.scala
index 4794b8e262..eb7a6fd809 100644
--- a/alleycats-core/src/main/scala/alleycats/std/option.scala
+++ b/alleycats-core/src/main/scala/alleycats/std/option.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package std
 
diff --git a/alleycats-core/src/main/scala/alleycats/std/set.scala b/alleycats-core/src/main/scala/alleycats/std/set.scala
index d8a4f5441a..c826b8fa5c 100644
--- a/alleycats-core/src/main/scala/alleycats/std/set.scala
+++ b/alleycats-core/src/main/scala/alleycats/std/set.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package std
 
diff --git a/alleycats-core/src/main/scala/alleycats/std/try.scala b/alleycats-core/src/main/scala/alleycats/std/try.scala
index f97bedfb42..111ad0f252 100644
--- a/alleycats-core/src/main/scala/alleycats/std/try.scala
+++ b/alleycats-core/src/main/scala/alleycats/std/try.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package std
 
diff --git a/alleycats-core/src/main/scala/alleycats/syntax/all.scala b/alleycats-core/src/main/scala/alleycats/syntax/all.scala
index 6347619726..79ef6c6a48 100644
--- a/alleycats-core/src/main/scala/alleycats/syntax/all.scala
+++ b/alleycats-core/src/main/scala/alleycats/syntax/all.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.syntax
 
 object all extends EmptySyntax with FoldableSyntax
diff --git a/alleycats-core/src/main/scala/alleycats/syntax/empty.scala b/alleycats-core/src/main/scala/alleycats/syntax/empty.scala
index c1e3cfd41e..c5ae45d7f3 100644
--- a/alleycats-core/src/main/scala/alleycats/syntax/empty.scala
+++ b/alleycats-core/src/main/scala/alleycats/syntax/empty.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package syntax
 
diff --git a/alleycats-core/src/main/scala/alleycats/syntax/foldable.scala b/alleycats-core/src/main/scala/alleycats/syntax/foldable.scala
index f4e4c9a115..9ee4b03028 100644
--- a/alleycats-core/src/main/scala/alleycats/syntax/foldable.scala
+++ b/alleycats-core/src/main/scala/alleycats/syntax/foldable.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats
 package syntax
 
diff --git a/alleycats-laws/src/main/scala/alleycats/laws/discipline/FlatMapRecTests.scala b/alleycats-laws/src/main/scala/alleycats/laws/discipline/FlatMapRecTests.scala
index a34a5f5619..0dbffc607a 100644
--- a/alleycats-laws/src/main/scala/alleycats/laws/discipline/FlatMapRecTests.scala
+++ b/alleycats-laws/src/main/scala/alleycats/laws/discipline/FlatMapRecTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.laws.discipline
 
 import cats._
diff --git a/alleycats-laws/src/main/scala/alleycats/laws/discipline/ReferentialEqTests.scala b/alleycats-laws/src/main/scala/alleycats/laws/discipline/ReferentialEqTests.scala
index 5bc5c169fc..dcd6b00042 100644
--- a/alleycats-laws/src/main/scala/alleycats/laws/discipline/ReferentialEqTests.scala
+++ b/alleycats-laws/src/main/scala/alleycats/laws/discipline/ReferentialEqTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.laws.discipline
 
 import cats.kernel.Eq
diff --git a/alleycats-laws/src/main/scala/alleycats/laws/discipline/SystemIdentityHashTests.scala b/alleycats-laws/src/main/scala/alleycats/laws/discipline/SystemIdentityHashTests.scala
index 1e88a76010..61820862a1 100644
--- a/alleycats-laws/src/main/scala/alleycats/laws/discipline/SystemIdentityHashTests.scala
+++ b/alleycats-laws/src/main/scala/alleycats/laws/discipline/SystemIdentityHashTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.laws.discipline
 
 import cats.kernel.{Eq, Hash}
diff --git a/alleycats-tests/js/src/test/scala/alleycats/tests/TestSettings.scala b/alleycats-tests/js/src/test/scala/alleycats/tests/TestSettings.scala
index 8a78b1f702..670d4b0262 100644
--- a/alleycats-tests/js/src/test/scala/alleycats/tests/TestSettings.scala
+++ b/alleycats-tests/js/src/test/scala/alleycats/tests/TestSettings.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.tests
 
 import org.scalacheck.Test
diff --git a/alleycats-tests/jvm/src/test/scala/alleycats/tests/TestSettings.scala b/alleycats-tests/jvm/src/test/scala/alleycats/tests/TestSettings.scala
index 423ff01760..27557a9a8b 100644
--- a/alleycats-tests/jvm/src/test/scala/alleycats/tests/TestSettings.scala
+++ b/alleycats-tests/jvm/src/test/scala/alleycats/tests/TestSettings.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.tests
 
 import org.scalacheck.Test.Parameters
diff --git a/alleycats-tests/native/src/test/scala/alleycats/tests/TestSettings.scala b/alleycats-tests/native/src/test/scala/alleycats/tests/TestSettings.scala
index 423ff01760..27557a9a8b 100644
--- a/alleycats-tests/native/src/test/scala/alleycats/tests/TestSettings.scala
+++ b/alleycats-tests/native/src/test/scala/alleycats/tests/TestSettings.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.tests
 
 import org.scalacheck.Test.Parameters
diff --git a/alleycats-tests/shared/src/test/scala/alleycats/tests/AlleycatsSuite.scala b/alleycats-tests/shared/src/test/scala/alleycats/tests/AlleycatsSuite.scala
index 72df380181..b894e434ee 100644
--- a/alleycats-tests/shared/src/test/scala/alleycats/tests/AlleycatsSuite.scala
+++ b/alleycats-tests/shared/src/test/scala/alleycats/tests/AlleycatsSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.tests
 
 import alleycats.std.MapInstances
diff --git a/alleycats-tests/shared/src/test/scala/alleycats/tests/IterableTests.scala b/alleycats-tests/shared/src/test/scala/alleycats/tests/IterableTests.scala
index 942d40cded..87277842b4 100644
--- a/alleycats-tests/shared/src/test/scala/alleycats/tests/IterableTests.scala
+++ b/alleycats-tests/shared/src/test/scala/alleycats/tests/IterableTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.tests
 
 import alleycats.std.all._
diff --git a/alleycats-tests/shared/src/test/scala/alleycats/tests/MapSuite.scala b/alleycats-tests/shared/src/test/scala/alleycats/tests/MapSuite.scala
index 6ae59faa72..b8bccda787 100644
--- a/alleycats-tests/shared/src/test/scala/alleycats/tests/MapSuite.scala
+++ b/alleycats-tests/shared/src/test/scala/alleycats/tests/MapSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.tests
 
 import cats.Traverse
diff --git a/alleycats-tests/shared/src/test/scala/alleycats/tests/ReferentialEqSuite.scala b/alleycats-tests/shared/src/test/scala/alleycats/tests/ReferentialEqSuite.scala
index c4490301a9..b2d093c662 100644
--- a/alleycats-tests/shared/src/test/scala/alleycats/tests/ReferentialEqSuite.scala
+++ b/alleycats-tests/shared/src/test/scala/alleycats/tests/ReferentialEqSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.tests
 
 import alleycats.ReferentialEq
diff --git a/alleycats-tests/shared/src/test/scala/alleycats/tests/SetSuite.scala b/alleycats-tests/shared/src/test/scala/alleycats/tests/SetSuite.scala
index 07a7c9e49c..c71091bc78 100644
--- a/alleycats-tests/shared/src/test/scala/alleycats/tests/SetSuite.scala
+++ b/alleycats-tests/shared/src/test/scala/alleycats/tests/SetSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.tests
 
 import alleycats.laws.discipline._
diff --git a/alleycats-tests/shared/src/test/scala/alleycats/tests/SystemIdentityHashSuite.scala b/alleycats-tests/shared/src/test/scala/alleycats/tests/SystemIdentityHashSuite.scala
index 580b7bef38..dff2f91b25 100644
--- a/alleycats-tests/shared/src/test/scala/alleycats/tests/SystemIdentityHashSuite.scala
+++ b/alleycats-tests/shared/src/test/scala/alleycats/tests/SystemIdentityHashSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package alleycats.tests
 
 import alleycats.SystemIdentityHash
diff --git a/bench/src/main/scala-2.12/cats/bench/ChainBench.scala b/bench/src/main/scala-2.12/cats/bench/ChainBench.scala
index 8cab9e7a3f..d0019dd16a 100644
--- a/bench/src/main/scala-2.12/cats/bench/ChainBench.scala
+++ b/bench/src/main/scala-2.12/cats/bench/ChainBench.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.bench
 
 import cats.data.Chain
diff --git a/bench/src/main/scala-2.12/cats/bench/CollectionMonoidBench.scala b/bench/src/main/scala-2.12/cats/bench/CollectionMonoidBench.scala
index 81d4ec1970..81645900e1 100644
--- a/bench/src/main/scala-2.12/cats/bench/CollectionMonoidBench.scala
+++ b/bench/src/main/scala-2.12/cats/bench/CollectionMonoidBench.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.bench
 
 import cats.Monoid
diff --git a/bench/src/main/scala-2.12/cats/bench/MapMonoidBench.scala b/bench/src/main/scala-2.12/cats/bench/MapMonoidBench.scala
index 382f892ae3..29ca2b1ed1 100644
--- a/bench/src/main/scala-2.12/cats/bench/MapMonoidBench.scala
+++ b/bench/src/main/scala-2.12/cats/bench/MapMonoidBench.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.bench
 
 import cats.instances.list._
diff --git a/bench/src/main/scala/cats/bench/EitherKMapBench.scala b/bench/src/main/scala/cats/bench/EitherKMapBench.scala
index ad6415e1e6..e69e5f89e1 100644
--- a/bench/src/main/scala/cats/bench/EitherKMapBench.scala
+++ b/bench/src/main/scala/cats/bench/EitherKMapBench.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.bench
 
 import cats.Functor
diff --git a/bench/src/main/scala/cats/bench/FoldBench.scala b/bench/src/main/scala/cats/bench/FoldBench.scala
index 8a007cff0c..be7e813ebc 100644
--- a/bench/src/main/scala/cats/bench/FoldBench.scala
+++ b/bench/src/main/scala/cats/bench/FoldBench.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.bench
 
 import cats.data.Const
diff --git a/bench/src/main/scala/cats/bench/FoldMapABench.scala b/bench/src/main/scala/cats/bench/FoldMapABench.scala
index bd67289fa3..01895fa352 100644
--- a/bench/src/main/scala/cats/bench/FoldMapABench.scala
+++ b/bench/src/main/scala/cats/bench/FoldMapABench.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.bench
 
 import cats.Applicative
diff --git a/bench/src/main/scala/cats/bench/ParTraverseBench.scala b/bench/src/main/scala/cats/bench/ParTraverseBench.scala
index e67479d41c..e61aa038a0 100644
--- a/bench/src/main/scala/cats/bench/ParTraverseBench.scala
+++ b/bench/src/main/scala/cats/bench/ParTraverseBench.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.bench
 
 import cats.{Bitraverse, Parallel, Traverse}
diff --git a/bench/src/main/scala/cats/bench/StateTBench.scala b/bench/src/main/scala/cats/bench/StateTBench.scala
index 75964d8ad4..5a9937dc01 100644
--- a/bench/src/main/scala/cats/bench/StateTBench.scala
+++ b/bench/src/main/scala/cats/bench/StateTBench.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.bench
 
 import cats.Eval
diff --git a/bench/src/main/scala/cats/bench/TrampolineBench.scala b/bench/src/main/scala/cats/bench/TrampolineBench.scala
index a80fdd2e93..78eaacb3a4 100644
--- a/bench/src/main/scala/cats/bench/TrampolineBench.scala
+++ b/bench/src/main/scala/cats/bench/TrampolineBench.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.bench
 
 import org.openjdk.jmh.annotations.{Benchmark, Scope, State}
diff --git a/bench/src/main/scala/cats/bench/TraverseBench.scala b/bench/src/main/scala/cats/bench/TraverseBench.scala
index fd61b603a7..b7e89d4113 100644
--- a/bench/src/main/scala/cats/bench/TraverseBench.scala
+++ b/bench/src/main/scala/cats/bench/TraverseBench.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.bench
 
 import cats.{Always, Applicative, Eval, Traverse}
diff --git a/bench/src/main/scala/cats/bench/ValidatedBench.scala b/bench/src/main/scala/cats/bench/ValidatedBench.scala
index 4bd9f0f090..1637c86f59 100644
--- a/bench/src/main/scala/cats/bench/ValidatedBench.scala
+++ b/bench/src/main/scala/cats/bench/ValidatedBench.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.bench
 
 import cats.data.Validated
diff --git a/binCompatTest/src/main/scala/catsBC/MimaExceptions.scala b/binCompatTest/src/main/scala-2/catsBC/MimaExceptions.scala
similarity index 59%
rename from binCompatTest/src/main/scala/catsBC/MimaExceptions.scala
rename to binCompatTest/src/main/scala-2/catsBC/MimaExceptions.scala
index 03ac4d7045..bbfadaf8c6 100644
--- a/binCompatTest/src/main/scala/catsBC/MimaExceptions.scala
+++ b/binCompatTest/src/main/scala-2/catsBC/MimaExceptions.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package catsBC
 import cats.InjectK
 import cats.implicits._
diff --git a/binCompatTest/src/test/scala-2/catsBC/MimaExceptionsTest.scala b/binCompatTest/src/test/scala-2/catsBC/MimaExceptionsTest.scala
new file mode 100644
index 0000000000..f9dd4d9987
--- /dev/null
+++ b/binCompatTest/src/test/scala-2/catsBC/MimaExceptionsTest.scala
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package catsBC
+
+import munit.FunSuite
+
+class MimaExceptionsTest extends FunSuite {
+  test("is binary compatible") {
+    MimaExceptions.isBinaryCompatible
+  }
+}
diff --git a/binCompatTest/src/test/scala/catsBC/MimaExceptionsTest.scala b/binCompatTest/src/test/scala/catsBC/MimaExceptionsTest.scala
deleted file mode 100644
index 8864f3a030..0000000000
--- a/binCompatTest/src/test/scala/catsBC/MimaExceptionsTest.scala
+++ /dev/null
@@ -1,9 +0,0 @@
-package catsBC
-
-import munit.FunSuite
-
-class MimaExceptionsTest extends FunSuite {
-  test("is binary compatible") {
-    MimaExceptions.isBinaryCompatible
-  }
-}
diff --git a/build.sbt b/build.sbt
index fad0923f22..997b1ddd20 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,20 +1,5 @@
-import com.jsuereth.sbtpgp.PgpKeys
-import microsites._
-import sbtcrossproject.CrossPlugin.autoImport.{crossProject, CrossType}
-import sbtrelease.ReleasePlugin.autoImport.ReleaseTransformations._
+ThisBuild / tlBaseVersion := "2.8"
 
-val isScala3 = Def.setting(
-  CrossVersion.partialVersion(scalaVersion.value).exists(_._1 == 3)
-)
-
-lazy val publishSignedIfRelevant = taskKey[Unit]("Runs publishSigned but only if scalaVersion in crossScalaVersions")
-Global / publishSignedIfRelevant := PgpKeys.publishSigned.value
-
-lazy val publishLocalSignedIfRelevant =
-  taskKey[Unit]("Runs publishLocalSigned but only if scalaVersion in crossScalaVersions")
-Global / publishLocalSignedIfRelevant := PgpKeys.publishLocalSigned.value
-
-ThisBuild / organization := "org.typelevel"
 ThisBuild / scalafixDependencies += "org.typelevel" %% "simulacrum-scalafix" % "0.5.3"
 
 val scalaCheckVersion = "1.15.4"
@@ -23,16 +8,13 @@ val disciplineVersion = "1.4.0"
 
 val disciplineMunitVersion = "1.0.9"
 
-val kindProjectorVersion = "0.13.2"
-
-ThisBuild / githubWorkflowUseSbtThinClient := false
+val munitVersion = "0.7.29"
 
-val PrimaryOS = "ubuntu-latest"
-ThisBuild / githubWorkflowOSes := Seq(PrimaryOS)
+val kindProjectorVersion = "0.13.2"
 
 val PrimaryJava = JavaSpec.temurin("8")
 val LTSJava = JavaSpec.temurin("17")
-val GraalVM11 = JavaSpec.graalvm("20.3.1", "11")
+val GraalVM11 = JavaSpec.graalvm("11")
 
 ThisBuild / githubWorkflowJavaVersions := Seq(PrimaryJava, LTSJava, GraalVM11)
 
@@ -41,59 +23,14 @@ val Scala213 = "2.13.8"
 val Scala3 = "3.0.2"
 
 ThisBuild / crossScalaVersions := Seq(Scala212, Scala213, Scala3)
-ThisBuild / scalaVersion := Scala213
-ThisBuild / versionScheme := Some("semver-spec")
+ThisBuild / scalaVersion := Scala212
 
-ThisBuild / githubWorkflowPublishTargetBranches := Seq() // disable publication for now
-
-ThisBuild / githubWorkflowBuildMatrixAdditions +=
-  "platform" -> List("jvm", "js", "native")
-
-ThisBuild / githubWorkflowBuildMatrixExclusions ++=
-  githubWorkflowJavaVersions.value.filterNot(Set(PrimaryJava)).flatMap { java =>
-    Seq(MatrixExclude(Map("platform" -> "js", "java" -> java.render)),
-        MatrixExclude(Map("platform" -> "native", "java" -> java.render))
-    )
-  }
+ThisBuild / tlFatalWarnings := false
 
 ThisBuild / githubWorkflowBuildMatrixExclusions +=
-  MatrixExclude(Map("platform" -> "native", "scala" -> Scala3))
+  MatrixExclude(Map("project" -> "rootNative", "scala" -> Scala3))
 // Dotty is not yet supported by Scala Native
 
-// we don't need this since we aren't publishing
-ThisBuild / githubWorkflowArtifactUpload := false
-
-val JvmCond = s"matrix.platform == 'jvm'"
-val JsCond = s"matrix.platform == 'js'"
-val NativeCond = s"matrix.platform == 'native'"
-
-val Scala2Cond = s"(matrix.scala != '$Scala3')"
-val Scala3Cond = s"(matrix.scala == '$Scala3')"
-
-ThisBuild / githubWorkflowBuild := Seq(
-  WorkflowStep.Sbt(List("validateAllJS"), name = Some("Validate JavaScript"), cond = Some(JsCond))
-) ++
-  // this has to be split up to avoid memory issues in GitHub Actions
-  validateAllNativeAlias.split(" ").filterNot(_ == "all").map { cmd =>
-    val name = cmd.flatMap(c => if (c.isUpper) s" $c" else c.toString).capitalize.replaceAll("/test", "")
-    WorkflowStep.Sbt(List(cmd), name = Some(s"Validate $name"), cond = Some(NativeCond))
-  } ++
-  Seq(
-    WorkflowStep.Sbt(List("buildJVM", "bench/test"),
-                     name = Some("Validate JVM (scala 2)"),
-                     cond = Some(JvmCond + " && " + Scala2Cond)
-    ),
-    WorkflowStep.Sbt(List("buildJVM", "bench/test"),
-                     name = Some("Validate JVM (scala 3)"),
-                     cond = Some(JvmCond + " && " + Scala3Cond)
-    ),
-    WorkflowStep.Sbt(
-      List("clean", "validateBC"), // cleaning here to avoid issues with codecov
-      name = Some("Binary compatibility ${{ matrix.scala }}"),
-      cond = Some(JvmCond + " && " + Scala2Cond)
-    )
-  )
-
 ThisBuild / githubWorkflowAddedJobs ++= Seq(
   WorkflowJob(
     "scalafix",
@@ -102,30 +39,7 @@ ThisBuild / githubWorkflowAddedJobs ++= Seq(
       WorkflowStep.Run(List("cd scalafix", "sbt test"), name = Some("Scalafix tests"))
     ),
     javas = List(PrimaryJava),
-    scalas = crossScalaVersions.value.toList
-  ),
-  WorkflowJob(
-    "linting",
-    "Linting",
-    githubWorkflowJobSetup.value.toList ::: List(
-      WorkflowStep.Sbt(List("fmtCheck"), name = Some("Check formatting"), cond = Some(Scala2Cond))
-    ),
-    javas = List(PrimaryJava),
-    scalas = crossScalaVersions.value.toList
-  ),
-  WorkflowJob(
-    "microsite",
-    "Microsite",
-    githubWorkflowJobSetup.value.toList ::: List(
-      WorkflowStep.Use(UseRef.Public("ruby", "setup-ruby", "v1"),
-                       params = Map("ruby-version" -> "2.7"),
-                       name = Some("Setup Ruby")
-      ),
-      WorkflowStep.Run(List("gem install jekyll -v 4.0.0"), name = Some("Setup Jekyll")),
-      WorkflowStep.Sbt(List("docs/makeMicrosite"), name = Some("Build the microsite"))
-    ),
-    javas = List(PrimaryJava),
-    scalas = List(Scala212)
+    scalas = List((ThisBuild / scalaVersion).value)
   )
 )
 
@@ -134,101 +48,68 @@ def scalaVersionSpecificFolders(srcName: String, srcBaseDir: java.io.File, scala
     List(CrossType.Pure, CrossType.Full)
       .flatMap(_.sharedSrcDir(srcBaseDir, srcName).toList.map(f => file(f.getPath + suffix)))
   CrossVersion.partialVersion(scalaVersion) match {
-    case Some((2, y))     => extraDirs("-2.x") ++ (if (y >= 13) extraDirs("-2.13+") else Nil)
-    case Some((0 | 3, _)) => extraDirs("-2.13+") ++ extraDirs("-3.x")
+    case Some((2, y))     => if (y >= 13) extraDirs("-2.13+") else Nil
+    case Some((0 | 3, _)) => extraDirs("-2.13+")
     case _                => Nil
   }
 }
 
-ThisBuild / mimaFailOnNoPrevious := false
-
-def doctestGenTestsDottyCompat(isDotty: Boolean, genTests: Seq[File]): Seq[File] =
-  if (isDotty) Nil else genTests
-
 lazy val commonSettings = Seq(
-  scalacOptions ++= commonScalacOptions(scalaVersion.value, isScala3.value),
   Compile / unmanagedSourceDirectories ++= scalaVersionSpecificFolders("main", baseDirectory.value, scalaVersion.value),
   Test / unmanagedSourceDirectories ++= scalaVersionSpecificFolders("test", baseDirectory.value, scalaVersion.value),
-  resolvers ++= Seq(Resolver.sonatypeRepo("releases"), Resolver.sonatypeRepo("snapshots")),
-  Test / parallelExecution := false,
-  testFrameworks += new TestFramework("munit.Framework"),
-  Compile / doc / scalacOptions := (Compile / doc / scalacOptions).value.filter(_ != "-Xfatal-warnings")
-) ++ warnUnusedImport
-
-def macroDependencies(scalaVersion: String) =
-  if (scalaVersion.startsWith("2")) Seq("org.scala-lang" % "scala-reflect" % scalaVersion % Provided) else Nil
+  Compile / packageSrc / mappings ++= {
+    val base = (Compile / sourceManaged).value
+    (Compile / managedSources).value.map { file =>
+      file -> file.relativeTo(base).get.getPath
+    }
+  }
+)
 
-lazy val catsSettings = Seq(
-  incOptions := incOptions.value.withLogRecompileOnMacro(false),
-  libraryDependencies ++= (
-    if (isScala3.value) Nil
+lazy val macroSettings = Seq(
+  libraryDependencies ++= {
+    if (tlIsScala3.value)
+      Nil
     else
-      Seq(
-        compilerPlugin(("org.typelevel" %% "kind-projector" % kindProjectorVersion).cross(CrossVersion.full))
-      )
-  ) ++ macroDependencies(scalaVersion.value)
-) ++ commonSettings ++ publishSettings ++ simulacrumSettings
+      Seq("org.scala-lang" % "scala-reflect" % scalaVersion.value % Provided)
+  }
+)
+
+lazy val cats1BincompatSettings = Seq(
+  tlMimaPreviousVersions ++= {
+    if (scalaVersion.value.startsWith("2.12")) Set("1.0.1", "1.1.0", "1.2.0", "1.3.1", "1.4.0", "1.5.0", "1.6.1")
+    else Set.empty
+  }
+)
 
 lazy val simulacrumSettings = Seq(
-  libraryDependencies ++= (if (isScala3.value) Nil else Seq(compilerPlugin(scalafixSemanticdb))),
+  libraryDependencies ++= (if (tlIsScala3.value) Nil else Seq(compilerPlugin(scalafixSemanticdb))),
   scalacOptions ++= (
-    if (isScala3.value) Nil
+    if (tlIsScala3.value) Nil
     else Seq(s"-P:semanticdb:targetroot:${baseDirectory.value}/target/.semanticdb", "-Yrangepos")
   ),
   libraryDependencies += "org.typelevel" %% "simulacrum-scalafix-annotations" % "0.5.4"
 )
 
-lazy val tagName = Def.setting {
-  s"v${if (releaseUseGlobalVersion.value) (ThisBuild / version).value else version.value}"
-}
+ThisBuild / tlVersionIntroduced := Map("3" -> "2.6.1")
+
+lazy val commonJvmSettings = Seq(
+  Test / fork := true,
+  Test / javaOptions := Seq("-Xmx3G"),
+  doctestGenTests := { if (tlIsScala3.value) Nil else doctestGenTests.value }
+)
 
 lazy val commonJsSettings = Seq(
-  publishConfiguration := publishConfiguration.value.withOverwrite(true), // needed since we double-publish on release
-  scalacOptions += {
-    val tv = tagName.value
-    val tagOrHash =
-      if (isSnapshot.value) sys.process.Process("git rev-parse HEAD").lineStream_!.head
-      else tv
-    val a = (LocalRootProject / baseDirectory).value.toURI.toString
-    val g = "https://raw.githubusercontent.com/typelevel/cats/" + tagOrHash
-    val opt = if (isScala3.value) "-scalajs-mapSourceURI" else "-P:scalajs:mapSourceURI"
-    s"$opt:$a->$g/"
-  },
-  Global / scalaJSStage := FullOptStage,
-  Test / scalaJSStage := FastOptStage,
-  parallelExecution := false,
-  jsEnv := new org.scalajs.jsenv.nodejs.NodeJSEnv(),
-  // batch mode decreases the amount of memory needed to compile Scala.js code
-  scalaJSLinkerConfig := scalaJSLinkerConfig.value.withBatchMode(githubIsWorkflowBuild.value),
-  scalaJSLinkerConfig ~= (_.withModuleKind(ModuleKind.CommonJSModule)),
-  // currently sbt-doctest doesn't work in JS builds
-  // https://github.com/tkawachi/sbt-doctest/issues/52
-  doctestGenTests := Seq.empty
+  doctestGenTests := Seq.empty,
+  tlVersionIntroduced ++= List("2.12", "2.13").map(_ -> "2.1.0").toMap
 )
 
 lazy val commonNativeSettings = Seq(
-  publishConfiguration := publishConfiguration.value.withOverwrite(true), // needed since we double-publish on release
-  // currently sbt-doctest doesn't work in Native/JS builds
-  // https://github.com/tkawachi/sbt-doctest/issues/52
   doctestGenTests := Seq.empty,
   // Currently scala-native does not support Dotty
-  crossScalaVersions := { crossScalaVersions.value.filterNot(Scala3 == _) }
-)
-
-lazy val commonJvmSettings = Seq(
-  Test / fork := true,
-  Test / javaOptions := Seq("-Xmx3G")
+  crossScalaVersions := { (ThisBuild / crossScalaVersions).value.filterNot(Scala3 == _) },
+  tlVersionIntroduced ++= List("2.12", "2.13").map(_ -> "2.4.0").toMap
 )
 
-lazy val includeGeneratedSrc: Setting[_] = {
-  Compile / packageSrc / mappings ++= {
-    val base = (Compile / sourceManaged).value
-    (Compile / managedSources).value.map { file =>
-      file -> file.relativeTo(base).get.getPath
-    }
-  }
-}
-
 lazy val disciplineDependencies = Seq(
   libraryDependencies ++= Seq(
     "org.typelevel" %%% "discipline-core" % disciplineVersion
@@ -237,565 +118,127 @@ lazy val disciplineDependencies = Seq(
 
 lazy val testingDependencies = Seq(
   libraryDependencies ++= Seq(
+    "org.scalameta" %%% "munit" % munitVersion % Test,
     "org.typelevel" %%% "discipline-munit" % disciplineMunitVersion % Test
   )
 )
 
-lazy val docsMappingsAPIDir = settingKey[String]("Name of subdirectory in site target directory for api docs")
-
-lazy val docSettings = Seq(
-  micrositeName := "Cats",
-  micrositeDescription := "Lightweight, modular, and extensible library for functional programming",
-  micrositeAuthor := "Cats contributors",
-  micrositeFooterText := Some(
-    """
-      |<p>© 2020 <a href="https://github.com/typelevel/cats#maintainers">The Cats Maintainers</a></p>
-      |<p style="font-size: 80%; margin-top: 10px">Website built with <a href="https://47deg.github.io/sbt-microsites/">sbt-microsites © 2020 47 Degrees</a></p>
-      |""".stripMargin
-  ),
-  micrositeHighlightTheme := "atom-one-light",
-  micrositeHomepage := "http://typelevel.org/cats/",
-  micrositeBaseUrl := "cats",
-  micrositeDocumentationUrl := "/cats/api/cats/index.html",
-  micrositeDocumentationLabelDescription := "API Documentation",
-  micrositeGithubOwner := "typelevel",
-  micrositeExtraMdFilesOutput := resourceManaged.value / "main" / "jekyll",
-  micrositeExtraMdFiles := Map(
-    file("CONTRIBUTING.md") -> ExtraMdFileConfig(
-      "contributing.md",
-      "home",
-      Map("title" -> "Contributing", "section" -> "contributing", "position" -> "50")
-    ),
-    file("README.md") -> ExtraMdFileConfig(
-      "index.md",
-      "home",
-      Map("title" -> "Home", "section" -> "home", "position" -> "0")
-    )
-  ),
-  micrositeGithubRepo := "cats",
-  micrositeImgDirectory := (LocalRootProject / baseDirectory).value / "docs" / "src" / "main" / "resources" / "microsite" / "img",
-  micrositeJsDirectory := (LocalRootProject / baseDirectory).value / "docs" / "src" / "main" / "resources" / "microsite" / "js",
-  micrositeTheme := "pattern",
-  micrositePalette := Map(
-    "brand-primary" -> "#5B5988",
-    "brand-secondary" -> "#292E53",
-    "brand-tertiary" -> "#222749",
-    "gray-dark" -> "#49494B",
-    "gray" -> "#7B7B7E",
-    "gray-light" -> "#E5E5E6",
-    "gray-lighter" -> "#F4F3F4",
-    "white-color" -> "#FFFFFF"
-  ),
-  autoAPIMappings := true,
-  ScalaUnidoc / unidoc / unidocProjectFilter := inProjects(kernel.jvm, core.jvm, free.jvm),
-  docsMappingsAPIDir := "api",
-  addMappingsToSiteDir(ScalaUnidoc / packageDoc / mappings, docsMappingsAPIDir),
-  ghpagesNoJekyll := false,
-  mdoc / fork := true,
-  ScalaUnidoc / unidoc / fork := true,
-  ScalaUnidoc / unidoc / scalacOptions ++= Seq(
-    "-Xfatal-warnings",
-    "-groups",
-    "-doc-source-url",
-    scmInfo.value.get.browseUrl + "/tree/main€{FILE_PATH}.scala",
-    "-sourcepath",
-    (LocalRootProject / baseDirectory).value.getAbsolutePath,
-    "-diagrams"
-  ) ++ (if (priorTo2_13(scalaVersion.value))
-          Seq("-Yno-adapted-args")
-        else
-          Nil),
-  scalacOptions ~= (_.filterNot(
-    Set("-Ywarn-unused-import", "-Ywarn-unused:imports", "-Ywarn-dead-code", "-Xfatal-warnings")
-  )),
-  git.remoteRepo := "git@github.com:typelevel/cats.git",
-  makeSite / includeFilter := "*.html" | "*.css" | "*.png" | "*.jpg" | "*.gif" | "*.js" | "*.swf" | "*.yml" | "*.md" | "*.svg",
-  Jekyll / includeFilter := (makeSite / includeFilter).value,
-  mdocIn := (LocalRootProject / baseDirectory).value / "docs" / "src" / "main" / "mdoc",
-  mdocExtraArguments := Seq("--no-link-hygiene")
-)
-
-def mimaPrevious(moduleName: String, scalaVer: String, ver: String, includeCats1: Boolean = true): List[ModuleID] = {
-  import sbtrelease.Version
-
-  def semverBinCompatVersions(major: Int, minor: Int, patch: Int): List[(Int, Int, Int)] = {
-    val majorVersions: List[Int] = List(major)
-    val minorVersions: List[Int] =
-      if (major >= 1) Range(0, minor).inclusive.toList
-      else List(minor)
-    def patchVersions(currentMinVersion: Int): List[Int] =
-      if (minor == 0 && patch == 0) List.empty[Int]
-      else if (currentMinVersion != minor) List(0)
-      else Range(0, patch - 1).inclusive.toList
-
-    for {
-      maj <- majorVersions
-      min <- minorVersions
-      pat <- patchVersions(min)
-    } yield (maj, min, pat)
-  }
-
-  val mimaVersions: List[String] = {
-    Version(ver) match {
-      case Some(Version(major, Seq(minor, patch), _)) =>
-        semverBinCompatVersions(major, minor, patch)
-          .map { case (maj, min, pat) => s"$maj.$min.$pat" }
-      case _ =>
-        List.empty[String]
-    }
-  }
-  // Safety Net For Exclusions
-  lazy val excludedVersions: List[String] = List()
-
-  // Safety Net for Inclusions
-  lazy val extraVersions: List[String] = List("1.0.1", "1.1.0", "1.2.0", "1.3.1", "1.4.0", "1.5.0", "1.6.1")
-
-  (mimaVersions ++ (if (priorTo2_13(scalaVer) && includeCats1) extraVersions else Nil))
-    .filterNot(excludedVersions.contains(_))
-    .map(v => "org.typelevel" %% moduleName % v)
-}
-
-def mimaSettings(moduleName: String, includeCats1: Boolean = true) =
-  Seq(
-    mimaPreviousArtifacts := mimaPrevious(moduleName, scalaVersion.value, version.value, includeCats1).toSet,
-    mimaBinaryIssueFilters ++= {
-      import com.typesafe.tools.mima.core.ProblemFilters._
-      import com.typesafe.tools.mima.core._
-      // Only sealed abstract classes that provide implicit instances to companion objects are allowed here, since they don't affect usage outside of the file.
-      Seq(
-        exclude[DirectMissingMethodProblem]("cats.data.OptionTInstances2.catsDataTraverseForOptionT"),
-        exclude[DirectMissingMethodProblem]("cats.data.KleisliInstances1.catsDataCommutativeArrowForKleisliId"),
-        exclude[DirectMissingMethodProblem]("cats.data.OptionTInstances1.catsDataMonoidKForOptionT"),
-        exclude[DirectMissingMethodProblem]("cats.data.OptionTInstances0.catsDataMonoidForOptionT"),
-        exclude[DirectMissingMethodProblem]("cats.data.KleisliInstances0.catsDataMonadForKleisliId"),
-        exclude[DirectMissingMethodProblem]("cats.data.KleisliInstances1.catsDataCommutativeArrowForKleisli"),
-        exclude[DirectMissingMethodProblem]("cats.data.KleisliInstances4.catsDataCommutativeFlatMapForKleisli"),
-        exclude[DirectMissingMethodProblem]("cats.data.IRWSTInstances1.catsDataStrongForIRWST"),
-        exclude[DirectMissingMethodProblem]("cats.data.OptionTInstances1.catsDataMonadErrorMonadForOptionT"),
-        exclude[DirectMissingMethodProblem]("cats.data.OptionTInstances1.catsDataMonadErrorForOptionT")
-      ) ++
-        // These things are Ops classes that shouldn't have the `value` exposed. These should have never been public because they don't
-        // provide any value. Making them private because of issues like #2514 and #2613.
-        Seq(
-          exclude[DirectMissingMethodProblem]("cats.ApplicativeError#LiftFromOptionPartially.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.Const#OfPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.EitherT#CondPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.EitherT#FromEitherPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.EitherT#FromOptionPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.EitherT#LeftPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.EitherT#LeftTPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.EitherT#PurePartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.EitherT#RightPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.IorT#BothTPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.IorT#CondPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.IorT#FromEitherPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.IorT#FromIorPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.IorT#FromOptionPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.IorT#LeftPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.IorT#LeftTPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.IorT#PurePartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.IorT#RightPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.NonEmptyChainOps.value"),
-          exclude[DirectMissingMethodProblem]("cats.data.OptionT#FromOptionPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.OptionT#PurePartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.data.Validated#CatchOnlyPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.free.Free#FreeInjectKPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.free.Free#FreeLiftInjectKPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.free.FreeT#FreeTLiftInjectKPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ApplicativeErrorIdOps.e"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ApplicativeErrorOps.fa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ApplicativeIdOps.a"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ApplicativeOps.fa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ApplyOps.fa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.BinestedIdOps.value"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.BitraverseOps.fab"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.DistributiveOps.fa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EitherIdOps.obj"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EitherIdOpsBinCompat0.value"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EitherSyntax#CatchOnlyPartiallyApplied.dummy"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EitherKOps.fa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EitherObjectOps.either"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EitherOps.eab"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EitherOpsBinCompat0.value"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.FlatMapIdOps.a"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.FlatMapOps.fa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.FlatMapOptionOps.fopta"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.FlattenOps.ffa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.FoldableOps.fa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.GuardOps.condition"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.IfMOps.fa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.IndexOps.fa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.IorIdOps.a"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.LeftOps.left"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ListOps.la"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ListOpsBinCompat0.la"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.MonadErrorOps.fa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.MonadErrorRethrowOps.fea"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.MonadIdOps.a"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.MonadOps.fa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.MonoidOps.lhs"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.NestedBitraverseOps.fgagb"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.NestedFoldableOps.fga"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.NestedIdOps.value"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.NestedReducibleOps.fga"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.OptionIdOps.a"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.OptionOps.oa"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ParallelApOps.ma"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ParallelFlatSequenceOps.tmta"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ParallelFlatTraversableOps.ta"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ParallelSequence_Ops.tma"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ParallelSequenceOps.tma"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ParallelTraversable_Ops.ta"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ParallelTraversableOps.ta"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.RightOps.right"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.SeparateOps.fgab"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.SetOps.se"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.TabulateOps.f"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.TryOps.self"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.UniteOps.fga"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ValidatedExtension.self"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ValidatedIdOpsBinCompat0.a"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.ValidatedIdSyntax.a"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.VectorOps.va"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.WriterIdSyntax.a")
-        ) ++ // Only compile-time abstractions (macros) allowed here
-        Seq(
-          exclude[IncompatibleMethTypeProblem]("cats.arrow.FunctionKMacros.lift"),
-          exclude[MissingTypesProblem]("cats.arrow.FunctionKMacros$"),
-          exclude[IncompatibleMethTypeProblem]("cats.arrow.FunctionKMacros#Lifter.this"),
-          exclude[IncompatibleResultTypeProblem]("cats.arrow.FunctionKMacros#Lifter.c"),
-          exclude[DirectMissingMethodProblem]("cats.arrow.FunctionKMacros.compatNewTypeName")
-        ) ++ // package private classes no longer needed
-        Seq(
-          exclude[MissingClassProblem]("cats.kernel.compat.scalaVersionMoreSpecific$"),
-          exclude[MissingClassProblem]("cats.kernel.compat.scalaVersionMoreSpecific"),
-          exclude[MissingClassProblem](
-            "cats.kernel.compat.scalaVersionMoreSpecific$suppressUnusedImportWarningForScalaVersionMoreSpecific"
-          )
-        ) ++ // Only narrowing of types allowed here
-        Seq(
-          exclude[IncompatibleSignatureProblem]("*")
-        ) ++ // New issues found since mima 0.8.0 (#3596, #3641)
-        Seq(
-          exclude[NewMixinForwarderProblem]("cats.kernel.Band#mcI#sp.combineN"),
-          exclude[NewMixinForwarderProblem]("cats.kernel.Band#mcD#sp.combineN"),
-          exclude[NewMixinForwarderProblem]("cats.kernel.Band#mcJ#sp.combineN"),
-          exclude[NewMixinForwarderProblem]("cats.kernel.Band.combineN"),
-          exclude[NewMixinForwarderProblem]("cats.kernel.Band#mcF#sp.combineN"),
-          exclude[NewMixinForwarderProblem]("cats.data.Tuple2KApply.product"),
-          exclude[NewMixinForwarderProblem]("cats.InvariantInstances0.catsApplicativeForArrow")
-        ) ++ // Additional methods in package-private traits
-        Seq(
-          exclude[ReversedMissingMethodProblem]("cats.data.NonEmptyCollection.grouped")
-        ) ++ // https://github.com/typelevel/cats/pull/3785
-        Seq(
-          exclude[MissingClassProblem]("cats.syntax.EqOps$mcJ$sp"),
-          exclude[MissingClassProblem]("cats.syntax.EqOps$mcD$sp"),
-          exclude[FinalClassProblem]("cats.syntax.EqOps"),
-          exclude[MissingFieldProblem]("cats.syntax.EqOps.lhs"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.unapply"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.apply"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.lhs"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy$default$1"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productPrefix"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productArity"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productElement"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productIterator"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.canEqual"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy$default$1$mcD$sp"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy$default$1$mcF$sp"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy$default$1$mcJ$sp"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy$default$1$mcI$sp"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productElementNames"),
-          exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productElementName"),
-          exclude[MissingClassProblem]("cats.syntax.EqOps$"),
-          exclude[MissingClassProblem]("cats.syntax.EqOps$mcF$sp"),
-          exclude[MissingClassProblem]("cats.syntax.EqOps$mcI$sp")
-        ) ++ // https://github.com/typelevel/cats/pull/3918
-        Seq(
-          exclude[MissingClassProblem]("algebra.laws.IsSerializable"),
-          exclude[MissingClassProblem]("algebra.laws.IsSerializable$")
-        ) ++ // https://github.com/typelevel/cats/pull/3987
-        Seq(
-          exclude[DirectAbstractMethodProblem]("cats.free.ContravariantCoyoneda.k"),
-          exclude[ReversedAbstractMethodProblem]("cats.free.ContravariantCoyoneda.k"),
-          exclude[DirectAbstractMethodProblem]("cats.free.Coyoneda.k"),
-          exclude[ReversedAbstractMethodProblem]("cats.free.Coyoneda.k")
-        )
-    }
-  )
-
-lazy val docs = project
-  .in(file("cats-docs"))
-  .enablePlugins(MdocPlugin)
-  .enablePlugins(MicrositesPlugin)
-  .enablePlugins(ScalaUnidocPlugin)
-  .settings(moduleName := "cats-docs")
-  .settings(catsSettings)
-  .settings(noPublishSettings)
-  .settings(docSettings)
-  .settings(commonJvmSettings)
-  .settings(
-    libraryDependencies ++= Seq(
-      "org.typelevel" %%% "discipline-munit" % disciplineMunitVersion
-    ),
-    ScalaUnidoc / unidoc / scalacOptions ~= (_.filter(_ != "-Xlint:-unused,_"))
-  )
-  .dependsOn(core.jvm, free.jvm, kernelLaws.jvm, laws.jvm)
-
-lazy val cats = project
-  .in(file("."))
-  .settings(moduleName := "root")
-  .settings(publishSettings) // these settings are needed to release all aggregated modules under this root module
-  .settings(noPublishSettings) // this is to exclude the root module itself from being published.
-  .aggregate(catsJVM, catsJS, catsNative)
-  .dependsOn(catsJVM, catsJS, catsNative, tests.jvm % "test-internal -> test")
-
-lazy val catsJVM = project
-  .in(file(".catsJVM"))
-  .settings(moduleName := "cats")
-  .settings(noPublishSettings)
-  .settings(catsSettings)
-  .settings(commonJvmSettings)
+lazy val root = tlCrossRootProject
   .aggregate(
-    kernel.jvm,
-    kernelLaws.jvm,
-    algebra.jvm,
-    algebraLaws.jvm,
-    core.jvm,
-    laws.jvm,
-    free.jvm,
-    testkit.jvm,
-    tests.jvm,
-    alleycatsCore.jvm,
-    alleycatsLaws.jvm,
-    alleycatsTests.jvm,
-    jvm
-  )
-  .dependsOn(
-    kernel.jvm,
-    kernelLaws.jvm,
-    algebra.jvm,
-    algebraLaws.jvm,
-    core.jvm,
-    laws.jvm,
-    free.jvm,
-    testkit.jvm,
-    tests.jvm % "test-internal -> test",
-    alleycatsCore.jvm,
-    alleycatsLaws.jvm,
-    alleycatsTests.jvm % "test-internal -> test",
-    jvm
+    kernel,
+    kernelLaws,
+    algebra,
+    algebraLaws,
+    core,
+    laws,
+    free,
+    testkit,
+    tests,
+    alleycatsCore,
+    alleycatsLaws,
+    alleycatsTests,
+    unidocs,
+    bench,
+    binCompatTest
   )
 
-lazy val catsJS = project
-  .in(file(".catsJS"))
-  .settings(moduleName := "cats")
-  .settings(noPublishSettings)
-  .settings(catsSettings)
-  .settings(commonJsSettings)
-  .aggregate(kernel.js,
-             kernelLaws.js,
-             algebra.js,
-             algebraLaws.js,
-             core.js,
-             laws.js,
-             free.js,
-             testkit.js,
-             tests.js,
-             alleycatsCore.js,
-             alleycatsLaws.js,
-             alleycatsTests.js,
-             js
-  )
-  .dependsOn(
-    kernel.js,
-    kernelLaws.js,
-    algebra.js,
-    algebraLaws.js,
-    core.js,
-    laws.js,
-    free.js,
-    testkit.js,
-    tests.js % "test-internal -> test",
-    alleycatsCore.js,
-    alleycatsLaws.js,
-    alleycatsTests.js % "test-internal -> test",
-    js
-  )
-  .enablePlugins(ScalaJSPlugin)
-
-lazy val catsNative = project
-  .in(file(".catsNative"))
-  .settings(moduleName := "cats")
-  .settings(noPublishSettings)
-  .settings(catsSettings)
-  .settings(commonNativeSettings)
-  .aggregate(
-    kernel.native,
-    kernelLaws.native,
-    algebra.native,
-    algebraLaws.native,
-    core.native,
-    laws.native,
-    free.native,
-    testkit.native,
-    tests.native,
-    alleycatsCore.native,
-    alleycatsLaws.native,
-    alleycatsTests.native,
-    native
-  )
-  .dependsOn(
-    kernel.native,
-    kernelLaws.native,
-    algebra.native,
-    algebraLaws.native,
-    core.native,
-    laws.native,
-    free.native,
-    testkit.native,
-    tests.native % "test-internal -> test",
-    alleycatsCore.native,
-    alleycatsLaws.native,
-    alleycatsTests.native % "test-internal -> test",
-    native
-  )
-  .enablePlugins(ScalaNativePlugin)
-
 lazy val kernel = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .crossType(CrossType.Pure)
   .in(file("kernel"))
   .settings(moduleName := "cats-kernel", name := "Cats kernel")
-  .settings(commonSettings)
-  .settings(publishSettings)
+  .settings(commonSettings, testingDependencies)
   .settings(Compile / sourceGenerators += (Compile / sourceManaged).map(KernelBoiler.gen).taskValue)
-  .settings(includeGeneratedSrc)
   .jsSettings(commonJsSettings)
-  .jvmSettings(commonJvmSettings ++ mimaSettings("cats-kernel"))
+  .jvmSettings(commonJvmSettings, cats1BincompatSettings)
   .nativeSettings(commonNativeSettings)
-  .settings(testingDependencies)
-  .settings(
-    libraryDependencies += "org.scalacheck" %%% "scalacheck" % scalaCheckVersion % Test
-  )
 
 lazy val kernelLaws = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .in(file("kernel-laws"))
+  .dependsOn(kernel)
   .settings(moduleName := "cats-kernel-laws", name := "Cats kernel laws")
   .settings(commonSettings)
-  .settings(publishSettings)
   .settings(disciplineDependencies)
   .settings(testingDependencies)
-  .settings(Test / scalacOptions := (Test / scalacOptions).value.filter(_ != "-Xfatal-warnings"))
   .jsSettings(commonJsSettings)
-  .jvmSettings(commonJvmSettings ++ mimaSettings("cats-kernel-laws", includeCats1 = false))
-  .dependsOn(kernel)
+  .jvmSettings(commonJvmSettings)
   .nativeSettings(commonNativeSettings)
 
+lazy val algebraSettings = Seq[Setting[_]](
+  tlMimaPreviousVersions += "2.2.3",
+  tlVersionIntroduced := List("2.12", "2.13", "3").map(_ -> "2.7.0").toMap
+)
+
 lazy val algebra = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .crossType(CrossType.Pure)
   .in(file("algebra-core"))
-  .settings(moduleName := "algebra", name := "Cats algebra")
   .dependsOn(kernel)
+  .settings(moduleName := "algebra", name := "Cats algebra")
   .settings(commonSettings)
-  .settings(publishSettings)
   .settings(Compile / sourceGenerators += (Compile / sourceManaged).map(AlgebraBoilerplate.gen).taskValue)
-  .settings(includeGeneratedSrc)
   .jsSettings(commonJsSettings)
-  .jvmSettings(
-    commonJvmSettings ++ mimaSettings("algebra") ++ Seq(
-      mimaPreviousArtifacts := Set("org.typelevel" %% "algebra" % "2.2.3")
-    )
-  )
+  .jvmSettings(commonJvmSettings)
   .nativeSettings(commonNativeSettings)
-  .settings(testingDependencies)
   .settings(
-    scalacOptions := {
-      if (isScala3.value)
-        scalacOptions.value.filterNot(Set("-Xfatal-warnings"))
-      else scalacOptions.value
-    },
-    libraryDependencies += "org.scalacheck" %%% "scalacheck" % scalaCheckVersion % Test
+    algebraSettings,
+    libraryDependencies += "org.scalacheck" %%% "scalacheck" % scalaCheckVersion % Test,
+    testingDependencies
   )
 
 lazy val algebraLaws = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .in(file("algebra-laws"))
+  .dependsOn(kernelLaws, algebra)
   .settings(moduleName := "algebra-laws", name := "Cats algebra laws")
   .settings(commonSettings)
-  .settings(publishSettings)
   .settings(disciplineDependencies)
   .settings(testingDependencies)
-  .settings(
-    scalacOptions := {
-      if (isScala3.value)
-        scalacOptions.value.filterNot(Set("-Xfatal-warnings"))
-      else scalacOptions.value
-    },
-    Test / scalacOptions := (Test / scalacOptions).value.filter(_ != "-Xfatal-warnings")
-  )
   .jsSettings(commonJsSettings)
-  .jvmSettings(
-    commonJvmSettings ++ mimaSettings("algebra-laws") ++ Seq(
-      mimaPreviousArtifacts := Set("org.typelevel" %% "algebra-laws" % "2.2.3")
-    )
-  )
-  .dependsOn(kernelLaws, algebra)
+  .jvmSettings(commonJvmSettings)
   .nativeSettings(commonNativeSettings)
+  .settings(algebraSettings)
 
 lazy val core = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .crossType(CrossType.Pure)
   .dependsOn(kernel)
   .settings(moduleName := "cats-core", name := "Cats core")
-  .settings(catsSettings)
+  .settings(commonSettings, macroSettings, simulacrumSettings)
   .settings(Compile / sourceGenerators += (Compile / sourceManaged).map(Boilerplate.gen).taskValue)
-  .settings(includeGeneratedSrc)
   .settings(
     libraryDependencies += "org.scalacheck" %%% "scalacheck" % scalaCheckVersion % Test,
-    doctestGenTests := doctestGenTestsDottyCompat(isScala3.value, doctestGenTests.value)
-  )
-  .settings(
-    Compile / scalacOptions :=
-      (Compile / scalacOptions).value.filter {
-        case "-Xfatal-warnings" if isScala3.value => false
-        case _                                    => true
-      }
+    Compile / doc / scalacOptions ~= { _.filterNot(_.startsWith("-W")) } // weird bug
   )
-  .jsSettings(commonJsSettings)
-  .jvmSettings(commonJvmSettings ++ mimaSettings("cats-core"))
   .settings(testingDependencies)
+  .jsSettings(commonJsSettings)
+  .jvmSettings(commonJvmSettings, cats1BincompatSettings)
   .nativeSettings(commonNativeSettings)
 
 lazy val laws = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .crossType(CrossType.Pure)
   .dependsOn(kernel, core, kernelLaws)
   .settings(moduleName := "cats-laws", name := "Cats laws")
-  .settings(catsSettings)
+  .settings(commonSettings)
   .settings(disciplineDependencies)
   .settings(testingDependencies)
   .jsSettings(commonJsSettings)
-  .jvmSettings(commonJvmSettings ++ mimaSettings("cats-laws", includeCats1 = false))
+  .jvmSettings(commonJvmSettings)
   .nativeSettings(commonNativeSettings)
 
 lazy val free = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .crossType(CrossType.Pure)
   .dependsOn(core, tests % "test-internal -> test")
   .settings(moduleName := "cats-free", name := "Cats Free")
-  .settings(catsSettings)
+  .settings(commonSettings)
   .jsSettings(commonJsSettings)
-  .jvmSettings(commonJvmSettings ++ mimaSettings("cats-free"))
+  .jvmSettings(commonJvmSettings, cats1BincompatSettings)
   .nativeSettings(commonNativeSettings)
 
 lazy val tests = crossProject(JSPlatform, JVMPlatform, NativePlatform)
-  .crossType(CrossType.Pure)
   .dependsOn(testkit % Test)
+  .enablePlugins(NoPublishPlugin)
   .settings(moduleName := "cats-tests")
-  .settings(catsSettings)
-  .settings(noPublishSettings)
+  .settings(commonSettings)
   .settings(testingDependencies)
   .jsSettings(commonJsSettings)
   .jvmSettings(commonJvmSettings)
-  .settings(Test / scalacOptions := (Test / scalacOptions).value.filter(_ != "-Xfatal-warnings"))
   .nativeSettings(commonNativeSettings)
 
 lazy val testkit = crossProject(JSPlatform, JVMPlatform, NativePlatform)
@@ -804,11 +247,10 @@ lazy val testkit = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .enablePlugins(BuildInfoPlugin)
   .settings(buildInfoKeys := Seq[BuildInfoKey](scalaVersion), buildInfoPackage := "cats.tests")
   .settings(moduleName := "cats-testkit")
-  .settings(catsSettings)
+  .settings(commonSettings)
   .settings(disciplineDependencies)
   .jsSettings(commonJsSettings)
-  .jvmSettings(commonJvmSettings ++ mimaSettings("cats-testkit", includeCats1 = false))
-  .settings(scalacOptions := scalacOptions.value.filter(_ != "-Xfatal-warnings"))
+  .jvmSettings(commonJvmSettings)
   .nativeSettings(commonNativeSettings)
 
 lazy val alleycatsCore = crossProject(JSPlatform, JVMPlatform, NativePlatform)
@@ -816,11 +258,9 @@ lazy val alleycatsCore = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .in(file("alleycats-core"))
   .dependsOn(core)
   .settings(moduleName := "alleycats-core", name := "Alleycats core")
-  .settings(catsSettings)
-  .settings(publishSettings)
-  .settings(includeGeneratedSrc)
+  .settings(commonSettings)
   .jsSettings(commonJsSettings)
-  .jvmSettings(commonJvmSettings ++ mimaSettings("alleycats-core", includeCats1 = false))
+  .jvmSettings(commonJvmSettings)
   .nativeSettings(commonNativeSettings)
 
 lazy val alleycatsLaws = crossProject(JSPlatform, JVMPlatform, NativePlatform)
@@ -828,36 +268,48 @@ lazy val alleycatsLaws = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .in(file("alleycats-laws"))
   .dependsOn(alleycatsCore, laws)
   .settings(moduleName := "alleycats-laws", name := "Alleycats laws")
-  .settings(catsSettings)
-  .settings(publishSettings)
+  .settings(commonSettings)
   .settings(disciplineDependencies)
   .settings(testingDependencies)
   .jsSettings(commonJsSettings)
-  .jvmSettings(commonJvmSettings ++ mimaSettings("alleycats-laws", includeCats1 = false))
+  .jvmSettings(commonJvmSettings)
   .nativeSettings(commonNativeSettings)
 
 lazy val alleycatsTests = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .in(file("alleycats-tests"))
   .dependsOn(alleycatsLaws, tests % "test-internal -> test")
+  .enablePlugins(NoPublishPlugin)
   .settings(moduleName := "alleycats-tests")
-  .settings(catsSettings)
-  .settings(noPublishSettings)
+  .settings(commonSettings)
   .jsSettings(commonJsSettings)
   .jvmSettings(commonJvmSettings)
-  .settings(Test / scalacOptions := (Test / scalacOptions).value.filter(_ != "-Xfatal-warnings"))
   .nativeSettings(commonNativeSettings)
 
+lazy val unidocs = project
+  .enablePlugins(TypelevelUnidocPlugin)
+  .settings(
+    name := "cats-docs",
+    ScalaUnidoc / unidoc / unidocProjectFilter := inProjects(kernel.jvm,
+                                                             core.jvm,
+                                                             free.jvm,
+                                                             algebra.jvm,
+                                                             alleycatsCore.jvm
+    ),
+    scalacOptions ~= { _.filterNot(_.startsWith("-W")) }, // weird nsc bug
+    ScalaUnidoc / unidoc / scalacOptions ++= Seq("-groups", "-diagrams")
+  )
+  .settings(commonSettings)
+
 // bench is currently JVM-only
 
 lazy val bench = project
   .dependsOn(core.jvm, free.jvm, laws.jvm)
   .settings(moduleName := "cats-bench")
-  .settings(catsSettings)
-  .settings(noPublishSettings)
+  .settings(commonSettings)
   .settings(commonJvmSettings)
   .settings(
     libraryDependencies ++= {
-      if (priorTo2_13(scalaVersion.value))
+      if (scalaVersion.value.startsWith("2.12"))
         Seq(
           "org.scalaz" %% "scalaz-core" % "7.2.23",
           "org.spire-math" %% "chain" % "0.3.0",
@@ -867,261 +319,54 @@ lazy val bench = project
     },
     evictionErrorLevel := Level.Warn
   )
-  .enablePlugins(JmhPlugin)
+  .enablePlugins(NoPublishPlugin, JmhPlugin)
 
 lazy val binCompatTest = project
-  .settings(noPublishSettings)
+  .enablePlugins(NoPublishPlugin)
   .settings(
-    // workaround because coursier doesn't understand dependsOn(core.jvm % Test)
-    // see https://github.com/typelevel/cats/pull/3079#discussion_r327181584
-    // see https://github.com/typelevel/cats/pull/3026#discussion_r321984342
-    useCoursier := false,
-    addCompilerPlugin(("org.typelevel" %% "kind-projector" % kindProjectorVersion).cross(CrossVersion.full)),
-    libraryDependencies += mimaPrevious("cats-core", scalaVersion.value, version.value).last % Provided,
-    scalacOptions ++= (if (priorTo2_13(scalaVersion.value)) Seq("-Ypartial-unification") else Nil)
+    useCoursier := false, // workaround so we can use an old version in compile
+    libraryDependencies += {
+      val oldV = if (tlIsScala3.value) "2.6.1" else "2.0.0"
+      "org.typelevel" %%% "cats-core" % oldV % Provided
+    }
   )
   .settings(testingDependencies)
   .dependsOn(core.jvm % Test)
 
-// cats-js is JS-only
-lazy val js = project
-  .dependsOn(core.js, tests.js % "test-internal -> test")
-  .settings(moduleName := "cats-js")
-  .settings(catsSettings)
-  .settings(commonJsSettings)
-  .enablePlugins(ScalaJSPlugin)
-
-// cats-native is Native-only
-lazy val native = project
-  .dependsOn(core.native, tests.native % "test-internal -> test")
-  .settings(moduleName := "cats-native")
-  .settings(catsSettings)
-  .settings(commonNativeSettings)
-  .enablePlugins(ScalaNativePlugin)
-
-// cats-jvm is JVM-only
-lazy val jvm = project
-  .dependsOn(core.jvm, tests.jvm % "test-internal -> test")
-  .settings(moduleName := "cats-jvm")
-  .settings(catsSettings)
-  .settings(commonJvmSettings)
-
-lazy val publishSettings = Seq(
-  homepage := Some(url("https://github.com/typelevel/cats")),
-  licenses := Seq("MIT" -> url("http://opensource.org/licenses/MIT")),
-  scmInfo := Some(ScmInfo(url("https://github.com/typelevel/cats"), "scm:git:git@github.com:typelevel/cats.git")),
-  autoAPIMappings := true,
-  apiURL := Some(url("http://typelevel.org/cats/api/")),
-  pomExtra :=
-    <developers>
-      <developer>
-        <id>ceedubs</id>
-        <name>Cody Allen</name>
-        <url>https://github.com/ceedubs/</url>
-      </developer>
-      <developer>
-        <id>rossabaker</id>
-        <name>Ross Baker</name>
-        <url>https://github.com/rossabaker/</url>
-      </developer>
-      <developer>
-        <id>johnynek</id>
-        <name>P. Oscar Boykin</name>
-        <url>https://github.com/johnynek/</url>
-      </developer>
-      <developer>
-        <id>travisbrown</id>
-        <name>Travis Brown</name>
-        <url>https://github.com/travisbrown/</url>
-      </developer>
-      <developer>
-        <id>adelbertc</id>
-        <name>Adelbert Chang</name>
-        <url>https://github.com/adelbertc/</url>
-      </developer>
-      <developer>
-        <id>peterneyens</id>
-        <name>Peter Neyens</name>
-        <url>https://github.com/peterneyens/</url>
-      </developer>
-      <developer>
-        <id>tpolecat</id>
-        <name>Rob Norris</name>
-        <url>https://github.com/tpolecat/</url>
-      </developer>
-      <developer>
-        <id>non</id>
-        <name>Erik Osheim</name>
-        <url>https://github.com/non/</url>
-      </developer>
-      <developer>
-        <id>LukaJCB</id>
-        <name>LukaJCB</name>
-        <url>https://github.com/LukaJCB/</url>
-      </developer>
-      <developer>
-        <id>mpilquist</id>
-        <name>Michael Pilquist</name>
-        <url>https://github.com/mpilquist/</url>
-      </developer>
-      <developer>
-        <id>milessabin</id>
-        <name>Miles Sabin</name>
-        <url>https://github.com/milessabin/</url>
-      </developer>
-      <developer>
-        <id>djspiewak</id>
-        <name>Daniel Spiewak</name>
-        <url>https://github.com/djspiewak/</url>
-      </developer>
-      <developer>
-        <id>fthomas</id>
-        <name>Frank Thomas</name>
-        <url>https://github.com/fthomas/</url>
-      </developer>
-      <developer>
-        <id>julien-truffaut</id>
-        <name>Julien Truffaut</name>
-        <url>https://github.com/julien-truffaut/</url>
-      </developer>
-      <developer>
-        <id>kailuowang</id>
-        <name>Kailuo Wang</name>
-        <url>https://github.com/kailuowang/</url>
-      </developer>
-    </developers>
-) ++ sharedPublishSettings ++ sharedReleaseProcess
-
-// Scalafmt
-addCommandAlias("fmt", "; Compile / scalafmt; Test / scalafmt; scalafmtSbt")
-addCommandAlias("fmtCheck", "; Compile / scalafmtCheck; Test / scalafmtCheck; scalafmtSbtCheck")
-
-// These aliases serialise the build for the benefit of Travis-CI.
-addCommandAlias("buildKernelJVM", ";kernelJVM/test;kernelLawsJVM/test")
-addCommandAlias("buildCoreJVM", ";coreJVM/test")
-addCommandAlias("buildTestsJVM", ";lawsJVM/test;testkitJVM/test;testsJVM/test;jvm/test")
-addCommandAlias("buildFreeJVM", ";freeJVM/test")
-addCommandAlias("buildAlleycatsJVM", ";alleycatsCoreJVM/test;alleycatsLawsJVM/test;alleycatsTestsJVM/test")
-addCommandAlias("buildAlgebraJVM", ";algebraJVM/test;algebraLawsJVM/test")
-addCommandAlias("buildJVM", ";buildKernelJVM;buildCoreJVM;buildTestsJVM;buildFreeJVM;buildAlleycatsJVM;buildAlgebraJVM")
-addCommandAlias("validateBC", ";binCompatTest/test;catsJVM/mimaReportBinaryIssues")
-addCommandAlias("validateJVM", ";fmtCheck;buildJVM;bench/test;validateBC;makeMicrosite")
-addCommandAlias("validateJS", ";testsJS/test;js/test")
-addCommandAlias("validateKernelJS", "kernelLawsJS/test")
-addCommandAlias("validateFreeJS", "freeJS/test")
-addCommandAlias("validateAlleycatsJS", "alleycatsTestsJS/test")
-addCommandAlias("validateAlgebraJS", "algebraLawsJS/test")
-addCommandAlias("validateAllJS",
-                "all testsJS/test js/test kernelLawsJS/test freeJS/test alleycatsTestsJS/test algebraLawsJS/test"
-)
-addCommandAlias("validateNative", ";testsNative/test;native/test")
-addCommandAlias("validateKernelNative", "kernelLawsNative/test")
-addCommandAlias("validateFreeNative", "freeNative/test")
-addCommandAlias("validateAlleycatsNative", "alleycatsTestsNative/test")
-addCommandAlias("validateAlgebraNative", "algebraLawsNative/test")
-
-val validateAllNativeAlias =
-  "all testsNative/test native/test kernelLawsNative/test freeNative/test alleycatsTestsNative/test algebraLawsNative/test"
-addCommandAlias("validateAllNative", validateAllNativeAlias)
-
-addCommandAlias(
-  "validate",
-  ";clean;validateJS;validateKernelJS;validateFreeJS;validateAlleycatsJS;validateAlgebraJS;validateNative;validateKernelNative;validateFreeNative;validateAlgebraNative;validateJVM"
-)
-
-addCommandAlias("prePR", "fmt")
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Base Build Settings - Should not need to edit below this line.
-// These settings could also come from another file or a plugin.
-// The only issue if coming from a plugin is that the Macro lib versions
-// are hard coded, so an overided facility would be required.
-
-addCommandAlias("gitSnapshots", ";set version in ThisBuild := git.gitDescribedVersion.value.get + \"-SNAPSHOT\"")
-
-lazy val noPublishSettings = Seq(
-  publish := {},
-  publishLocal := {},
-  publishArtifact := false
-)
-
-lazy val crossVersionSharedSources: Seq[Setting[_]] =
-  Seq(Compile, Test).map { sc =>
-    sc / unmanagedSourceDirectories ++= {
-      (sc / unmanagedSourceDirectories).value.map { dir: File =>
-        new File(dir.getPath + "_" + scalaBinaryVersion.value)
-      }
-    }
-  }
-
-def commonScalacOptions(scalaVersion: String, isDotty: Boolean) =
-  Seq(
-    "-encoding",
-    "UTF-8",
-    "-feature",
-    "-unchecked",
-    "-Xfatal-warnings",
-    "-deprecation"
-  ) ++ (if (priorTo2_13(scalaVersion))
-          Seq(
-            "-Yno-adapted-args",
-            "-Ypartial-unification",
-            "-Xfuture"
-          )
-        else
-          Nil) ++ (if (isDotty)
-                     Seq("-language:implicitConversions", "-Ykind-projector", "-Xignore-scala2-macros")
-                   else
-                     Seq(
-                       "-language:existentials",
-                       "-language:higherKinds",
-                       "-language:implicitConversions",
-                       "-Ywarn-dead-code",
-                       "-Ywarn-numeric-widen",
-                       "-Ywarn-value-discard",
-                       "-Xlint:-unused,_"
-                     ))
-
-def priorTo2_13(scalaVersion: String): Boolean =
-  CrossVersion.partialVersion(scalaVersion) match {
-    case Some((2, minor)) if minor < 13 => true
-    case _                              => false
-  }
-
-lazy val sharedPublishSettings = Seq(
-  releaseTagName := tagName.value,
-  releaseVcsSign := true,
-  publishMavenStyle := true,
-  Test / publishArtifact := false,
-  pomIncludeRepository := Function.const(false),
-  publishTo := {
-    val nexus = "https://oss.sonatype.org/"
-    if (isSnapshot.value)
-      Some("Snapshots".at(nexus + "content/repositories/snapshots"))
-    else
-      Some("Releases".at(nexus + "service/local/staging/deploy/maven2"))
-  }
-)
-
-lazy val sharedReleaseProcess = Seq(
-  releaseProcess := Seq[ReleaseStep](
-    checkSnapshotDependencies,
-    inquireVersions,
-    runClean,
-    runTest, // temporarily only run test in current scala version because docs won't build in 2.13 yet
-    setReleaseVersion,
-    commitReleaseVersion,
-    tagRelease,
-    releaseStepCommandAndRemaining("+publishSigned"),
-    setNextVersion,
-    commitNextVersion,
-    releaseStepCommand("sonatypeReleaseAll"),
-    pushChanges
+lazy val docs = project
+  .in(file("site"))
+  .enablePlugins(TypelevelSitePlugin)
+  .settings(
+    tlFatalWarnings := false,
+    laikaConfig ~= { _.withRawContent },
+    tlSiteApiUrl := Some(url("https://typelevel.org/cats/api/")),
+    tlSiteRelatedProjects := Seq(
+      TypelevelProject.CatsEffect,
+      "Mouse" -> url("https://typelevel.org/mouse"),
+      TypelevelProject.Discipline
+    ),
+    libraryDependencies ++= Seq(
+      "org.typelevel" %%% "discipline-munit" % disciplineMunitVersion
+    )
   )
-)
+  .dependsOn(core.jvm, free.jvm, laws.jvm)
 
-lazy val warnUnusedImport = Seq(
-  scalacOptions ++= (if (isScala3.value) Nil else Seq("-Ywarn-unused:imports")),
-  Compile / console / scalacOptions ~= (_.filterNot(Set("-Ywarn-unused-import", "-Ywarn-unused:imports"))),
-  Test / console / scalacOptions := (Compile / console / scalacOptions).value
+ThisBuild / licenses := List(License.MIT)
+ThisBuild / startYear := Some(2015)
+ThisBuild / developers ++= List(
+  tlGitHubDev("ceedubs", "Cody Allen"),
+  tlGitHubDev("rossabaker", "Ross Baker"),
+  tlGitHubDev("johnynek", "P. Oscar Boykin"),
+  tlGitHubDev("travisbrown", "Travis Brown"),
+  tlGitHubDev("adelbertc", "Adelbert Chang"),
+  tlGitHubDev("peterneyens", "Peter Neyens"),
+  tlGitHubDev("tpolecat", "Rob Norris"),
+  tlGitHubDev("non", "Erik Osheim"),
+  tlGitHubDev("LukaJCB", "LukaJCB"),
+  tlGitHubDev("mpilquist", "Michael Pilquist"),
+  tlGitHubDev("milessabin", "Miles Sabin"),
+  tlGitHubDev("djspiewak", "Daniel Spiewak"),
+  tlGitHubDev("fthomas", "Frank Thomas"),
+  tlGitHubDev("julien-truffaut", "Julien Truffaut"),
+  tlGitHubDev("kailuowang", "Kailuo Wang")
 )
diff --git a/core/src/main/scala-2.12/cats/ScalaVersionSpecificInstances.scala b/core/src/main/scala-2.12/cats/ScalaVersionSpecificInstances.scala
index c4b94161ab..2a8f359f45 100644
--- a/core/src/main/scala-2.12/cats/ScalaVersionSpecificInstances.scala
+++ b/core/src/main/scala-2.12/cats/ScalaVersionSpecificInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.data.ZipStream
diff --git a/core/src/main/scala-2.12/cats/compat/ChainCompat.scala b/core/src/main/scala-2.12/cats/compat/ChainCompat.scala
index 3d6efc06bb..b4c29c7cfb 100644
--- a/core/src/main/scala-2.12/cats/compat/ChainCompat.scala
+++ b/core/src/main/scala-2.12/cats/compat/ChainCompat.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.data
 
 private[data] trait ChainCompat[+A] { _: Chain[A] =>
diff --git a/core/src/main/scala-2.12/cats/compat/FoldableCompat.scala b/core/src/main/scala-2.12/cats/compat/FoldableCompat.scala
index 88d162bd02..ea6631d723 100644
--- a/core/src/main/scala-2.12/cats/compat/FoldableCompat.scala
+++ b/core/src/main/scala-2.12/cats/compat/FoldableCompat.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package compat
 
diff --git a/core/src/main/scala-2.12/cats/compat/Seq.scala b/core/src/main/scala-2.12/cats/compat/Seq.scala
index fd6d03687d..ac140721fb 100644
--- a/core/src/main/scala-2.12/cats/compat/Seq.scala
+++ b/core/src/main/scala-2.12/cats/compat/Seq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.compat
 
 import scala.collection.immutable.{Seq => ISeq}
diff --git a/core/src/main/scala-2.12/cats/compat/SortedSet.scala b/core/src/main/scala-2.12/cats/compat/SortedSet.scala
index 6bfe60fd50..699bd022af 100644
--- a/core/src/main/scala-2.12/cats/compat/SortedSet.scala
+++ b/core/src/main/scala-2.12/cats/compat/SortedSet.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package compat
 
diff --git a/core/src/main/scala-2.12/cats/compat/Vector.scala b/core/src/main/scala-2.12/cats/compat/Vector.scala
index 31917aa3bf..99dc2b9947 100644
--- a/core/src/main/scala-2.12/cats/compat/Vector.scala
+++ b/core/src/main/scala-2.12/cats/compat/Vector.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.compat
 
 private[cats] object Vector {
diff --git a/core/src/main/scala-2.12/cats/data/OneAndLowPriority4.scala b/core/src/main/scala-2.12/cats/data/OneAndLowPriority4.scala
index 4c5f6613d0..9ff6d9455d 100644
--- a/core/src/main/scala-2.12/cats/data/OneAndLowPriority4.scala
+++ b/core/src/main/scala-2.12/cats/data/OneAndLowPriority4.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala-2.12/cats/data/ScalaVersionSpecificNonEmptyChainImpl.scala b/core/src/main/scala-2.12/cats/data/ScalaVersionSpecificNonEmptyChainImpl.scala
index 35ca7ff5cf..8fa21d7a16 100644
--- a/core/src/main/scala-2.12/cats/data/ScalaVersionSpecificNonEmptyChainImpl.scala
+++ b/core/src/main/scala-2.12/cats/data/ScalaVersionSpecificNonEmptyChainImpl.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.data
 
 private[data] trait ScalaVersionSpecificNonEmptyChainImpl {
diff --git a/core/src/main/scala-2.12/cats/data/ScalaVersionSpecificPackage.scala b/core/src/main/scala-2.12/cats/data/ScalaVersionSpecificPackage.scala
index b088ade790..258af6d53b 100644
--- a/core/src/main/scala-2.12/cats/data/ScalaVersionSpecificPackage.scala
+++ b/core/src/main/scala-2.12/cats/data/ScalaVersionSpecificPackage.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala-2.12/cats/data/ZipStream.scala b/core/src/main/scala-2.12/cats/data/ZipStream.scala
index 0e9a59ea07..b627e02f62 100644
--- a/core/src/main/scala-2.12/cats/data/ZipStream.scala
+++ b/core/src/main/scala-2.12/cats/data/ZipStream.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala-2.12/cats/evidence/AsSupport.scala b/core/src/main/scala-2.12/cats/evidence/AsSupport.scala
index cfc719d4e6..6e3862f646 100644
--- a/core/src/main/scala-2.12/cats/evidence/AsSupport.scala
+++ b/core/src/main/scala-2.12/cats/evidence/AsSupport.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.evidence
 
 private[evidence] trait AsSupport {
diff --git a/core/src/main/scala-2.12/cats/evidence/IsSupport.scala b/core/src/main/scala-2.12/cats/evidence/IsSupport.scala
index caecd859bb..573a9f85c3 100644
--- a/core/src/main/scala-2.12/cats/evidence/IsSupport.scala
+++ b/core/src/main/scala-2.12/cats/evidence/IsSupport.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.evidence
 
 private[evidence] trait IsSupport {
diff --git a/core/src/main/scala-2.12/cats/instances/ScalaVersionSpecificNumeric.scala b/core/src/main/scala-2.12/cats/instances/ScalaVersionSpecificNumeric.scala
index d6c178bfd8..854758896c 100644
--- a/core/src/main/scala-2.12/cats/instances/ScalaVersionSpecificNumeric.scala
+++ b/core/src/main/scala-2.12/cats/instances/ScalaVersionSpecificNumeric.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.instances
 
 abstract private[instances] class ScalaVersionSpecificNumeric[A, B](fa: Numeric[A])(f: A => B)(g: B => A)
diff --git a/core/src/main/scala-2.12/cats/instances/ScalaVersionSpecificParallelInstances.scala b/core/src/main/scala-2.12/cats/instances/ScalaVersionSpecificParallelInstances.scala
index 211c39f614..c99ca4215d 100644
--- a/core/src/main/scala-2.12/cats/instances/ScalaVersionSpecificParallelInstances.scala
+++ b/core/src/main/scala-2.12/cats/instances/ScalaVersionSpecificParallelInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala-2.12/cats/instances/all.scala b/core/src/main/scala-2.12/cats/instances/all.scala
index 5e06ed7177..98110d1a4c 100644
--- a/core/src/main/scala-2.12/cats/instances/all.scala
+++ b/core/src/main/scala-2.12/cats/instances/all.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala-2.12/cats/instances/package.scala b/core/src/main/scala-2.12/cats/instances/package.scala
index a5906db156..769e3997d3 100644
--- a/core/src/main/scala-2.12/cats/instances/package.scala
+++ b/core/src/main/scala-2.12/cats/instances/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 package object instances {
diff --git a/core/src/main/scala-2.12/cats/instances/stream.scala b/core/src/main/scala-2.12/cats/instances/stream.scala
index c494b94486..126fccef1c 100644
--- a/core/src/main/scala-2.12/cats/instances/stream.scala
+++ b/core/src/main/scala-2.12/cats/instances/stream.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala-2.13+/cats/ScalaVersionSpecificInstances.scala b/core/src/main/scala-2.13+/cats/ScalaVersionSpecificInstances.scala
index ee443562a5..673f0eac11 100644
--- a/core/src/main/scala-2.13+/cats/ScalaVersionSpecificInstances.scala
+++ b/core/src/main/scala-2.13+/cats/ScalaVersionSpecificInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.data.{ZipLazyList, ZipStream}
diff --git a/core/src/main/scala-2.13+/cats/compat/FoldableCompat.scala b/core/src/main/scala-2.13+/cats/compat/FoldableCompat.scala
index 29bf40e7c4..622bd9a9c2 100644
--- a/core/src/main/scala-2.13+/cats/compat/FoldableCompat.scala
+++ b/core/src/main/scala-2.13+/cats/compat/FoldableCompat.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package compat
 
diff --git a/core/src/main/scala-2.13+/cats/compat/Seq.scala b/core/src/main/scala-2.13+/cats/compat/Seq.scala
index c5b158036c..93a3580dd3 100644
--- a/core/src/main/scala-2.13+/cats/compat/Seq.scala
+++ b/core/src/main/scala-2.13+/cats/compat/Seq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.compat
 
 import scala.collection.immutable.{Seq => ISeq}
diff --git a/core/src/main/scala-2.13+/cats/compat/SortedSet.scala b/core/src/main/scala-2.13+/cats/compat/SortedSet.scala
index 88d60e5561..c82b7992db 100644
--- a/core/src/main/scala-2.13+/cats/compat/SortedSet.scala
+++ b/core/src/main/scala-2.13+/cats/compat/SortedSet.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package compat
 
diff --git a/core/src/main/scala-2.13+/cats/compat/Vector.scala b/core/src/main/scala-2.13+/cats/compat/Vector.scala
index e3f0f5e223..beef2abf6f 100644
--- a/core/src/main/scala-2.13+/cats/compat/Vector.scala
+++ b/core/src/main/scala-2.13+/cats/compat/Vector.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.compat
 
 private[cats] object Vector {
diff --git a/core/src/main/scala-2.13+/cats/data/ChainCompat.scala b/core/src/main/scala-2.13+/cats/data/ChainCompat.scala
index a02439c188..8541f1356e 100644
--- a/core/src/main/scala-2.13+/cats/data/ChainCompat.scala
+++ b/core/src/main/scala-2.13+/cats/data/ChainCompat.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala-2.13+/cats/data/NonEmptyLazyList.scala b/core/src/main/scala-2.13+/cats/data/NonEmptyLazyList.scala
index e9ac67ac7c..5591b8abde 100644
--- a/core/src/main/scala-2.13+/cats/data/NonEmptyLazyList.scala
+++ b/core/src/main/scala-2.13+/cats/data/NonEmptyLazyList.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala-2.13+/cats/data/OneAndLowPriority4.scala b/core/src/main/scala-2.13+/cats/data/OneAndLowPriority4.scala
index 3f08c7bdd8..bc61e2526a 100644
--- a/core/src/main/scala-2.13+/cats/data/OneAndLowPriority4.scala
+++ b/core/src/main/scala-2.13+/cats/data/OneAndLowPriority4.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala-2.13+/cats/data/ScalaVersionSpecificNonEmptyChainImpl.scala b/core/src/main/scala-2.13+/cats/data/ScalaVersionSpecificNonEmptyChainImpl.scala
index 5005b53f9c..6fe104df42 100644
--- a/core/src/main/scala-2.13+/cats/data/ScalaVersionSpecificNonEmptyChainImpl.scala
+++ b/core/src/main/scala-2.13+/cats/data/ScalaVersionSpecificNonEmptyChainImpl.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.data
 
 private[data] trait ScalaVersionSpecificNonEmptyChainImpl
diff --git a/core/src/main/scala-2.13+/cats/data/ScalaVersionSpecificPackage.scala b/core/src/main/scala-2.13+/cats/data/ScalaVersionSpecificPackage.scala
index 6f4c639df8..61f54202e9 100644
--- a/core/src/main/scala-2.13+/cats/data/ScalaVersionSpecificPackage.scala
+++ b/core/src/main/scala-2.13+/cats/data/ScalaVersionSpecificPackage.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala-2.13+/cats/data/ZipLazyList.scala b/core/src/main/scala-2.13+/cats/data/ZipLazyList.scala
index 20c4832560..516054a625 100644
--- a/core/src/main/scala-2.13+/cats/data/ZipLazyList.scala
+++ b/core/src/main/scala-2.13+/cats/data/ZipLazyList.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala-2.13+/cats/data/ZipStream.scala b/core/src/main/scala-2.13+/cats/data/ZipStream.scala
index fbb375eca8..576a75f007 100644
--- a/core/src/main/scala-2.13+/cats/data/ZipStream.scala
+++ b/core/src/main/scala-2.13+/cats/data/ZipStream.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala-2.13+/cats/evidence/AsSupport.scala b/core/src/main/scala-2.13+/cats/evidence/AsSupport.scala
index 53fd40df16..c2f9064814 100644
--- a/core/src/main/scala-2.13+/cats/evidence/AsSupport.scala
+++ b/core/src/main/scala-2.13+/cats/evidence/AsSupport.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.evidence
 
 private[evidence] trait AsSupport {
diff --git a/core/src/main/scala-2.13+/cats/evidence/IsSupport.scala b/core/src/main/scala-2.13+/cats/evidence/IsSupport.scala
index a4d1ce74fc..156a9363ec 100644
--- a/core/src/main/scala-2.13+/cats/evidence/IsSupport.scala
+++ b/core/src/main/scala-2.13+/cats/evidence/IsSupport.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.evidence
 
 private[evidence] trait IsSupport {
diff --git a/core/src/main/scala-2.13+/cats/instances/ScalaVersionSpecificNumeric.scala b/core/src/main/scala-2.13+/cats/instances/ScalaVersionSpecificNumeric.scala
index 13b1426508..1b507f7384 100644
--- a/core/src/main/scala-2.13+/cats/instances/ScalaVersionSpecificNumeric.scala
+++ b/core/src/main/scala-2.13+/cats/instances/ScalaVersionSpecificNumeric.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.instances
 
 abstract private[instances] class ScalaVersionSpecificNumeric[A, B](fa: Numeric[A])(f: A => B)(g: B => A)
diff --git a/core/src/main/scala-2.13+/cats/instances/ScalaVersionSpecificParallelInstances.scala b/core/src/main/scala-2.13+/cats/instances/ScalaVersionSpecificParallelInstances.scala
index c3ee090617..aeef20c27e 100644
--- a/core/src/main/scala-2.13+/cats/instances/ScalaVersionSpecificParallelInstances.scala
+++ b/core/src/main/scala-2.13+/cats/instances/ScalaVersionSpecificParallelInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala-2.13+/cats/instances/all.scala b/core/src/main/scala-2.13+/cats/instances/all.scala
index 8ea017d83b..2f3371ab16 100644
--- a/core/src/main/scala-2.13+/cats/instances/all.scala
+++ b/core/src/main/scala-2.13+/cats/instances/all.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala-2.13+/cats/instances/arraySeq.scala b/core/src/main/scala-2.13+/cats/instances/arraySeq.scala
index fbe833eafb..7424f95d94 100644
--- a/core/src/main/scala-2.13+/cats/instances/arraySeq.scala
+++ b/core/src/main/scala-2.13+/cats/instances/arraySeq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala-2.13+/cats/instances/lazyList.scala b/core/src/main/scala-2.13+/cats/instances/lazyList.scala
index fa6ed7f8cd..8be4ab7762 100644
--- a/core/src/main/scala-2.13+/cats/instances/lazyList.scala
+++ b/core/src/main/scala-2.13+/cats/instances/lazyList.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala-2.13+/cats/instances/package.scala b/core/src/main/scala-2.13+/cats/instances/package.scala
index 3f724ceee4..6b5e91bee3 100644
--- a/core/src/main/scala-2.13+/cats/instances/package.scala
+++ b/core/src/main/scala-2.13+/cats/instances/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 package object instances {
diff --git a/core/src/main/scala-2.13+/cats/instances/stream.scala b/core/src/main/scala-2.13+/cats/instances/stream.scala
index 269543e9df..ad01c35758 100644
--- a/core/src/main/scala-2.13+/cats/instances/stream.scala
+++ b/core/src/main/scala-2.13+/cats/instances/stream.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala-2.x/src/main/scala/cats/syntax/MonadOps.scala b/core/src/main/scala-2.x/src/main/scala/cats/syntax/MonadOps.scala
deleted file mode 100644
index 009aea662c..0000000000
--- a/core/src/main/scala-2.x/src/main/scala/cats/syntax/MonadOps.scala
+++ /dev/null
@@ -1,12 +0,0 @@
-package cats.syntax
-
-import cats.{Alternative, Monad}
-
-final class MonadOps[F[_], A](private val fa: F[A]) extends AnyVal {
-  def whileM[G[_]](p: F[Boolean])(implicit M: Monad[F], G: Alternative[G]): F[G[A]] = M.whileM(p)(fa)
-  def whileM_(p: F[Boolean])(implicit M: Monad[F]): F[Unit] = M.whileM_(p)(fa)
-  def untilM[G[_]](p: F[Boolean])(implicit M: Monad[F], G: Alternative[G]): F[G[A]] = M.untilM(fa)(p)
-  def untilM_(p: F[Boolean])(implicit M: Monad[F]): F[Unit] = M.untilM_(fa)(p)
-  def iterateWhile(p: A => Boolean)(implicit M: Monad[F]): F[A] = M.iterateWhile(fa)(p)
-  def iterateUntil(p: A => Boolean)(implicit M: Monad[F]): F[A] = M.iterateUntil(fa)(p)
-}
diff --git a/core/src/main/scala-2.x/src/main/scala/cats/arrow/FunctionKMacros.scala b/core/src/main/scala-2/src/main/scala/cats/arrow/FunctionKMacros.scala
similarity index 72%
rename from core/src/main/scala-2.x/src/main/scala/cats/arrow/FunctionKMacros.scala
rename to core/src/main/scala-2/src/main/scala/cats/arrow/FunctionKMacros.scala
index 6a9bbc7d45..89dd8846bd 100644
--- a/core/src/main/scala-2.x/src/main/scala/cats/arrow/FunctionKMacros.scala
+++ b/core/src/main/scala-2/src/main/scala/cats/arrow/FunctionKMacros.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package arrow
 
diff --git a/core/src/main/scala-2/src/main/scala/cats/compat/targetName.scala b/core/src/main/scala-2/src/main/scala/cats/compat/targetName.scala
new file mode 100644
index 0000000000..44e0e795aa
--- /dev/null
+++ b/core/src/main/scala-2/src/main/scala/cats/compat/targetName.scala
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.compat
+
+import scala.annotation.Annotation
+
+// compat dummy so we can use targetName on scala 3 to get out of bincompat pickles
+private[cats] class targetName(dummy: String) extends Annotation
diff --git a/core/src/main/scala-2/src/main/scala/cats/syntax/MonadOps.scala b/core/src/main/scala-2/src/main/scala/cats/syntax/MonadOps.scala
new file mode 100644
index 0000000000..04897be36c
--- /dev/null
+++ b/core/src/main/scala-2/src/main/scala/cats/syntax/MonadOps.scala
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.syntax
+
+import cats.{Alternative, Monad}
+
+final class MonadOps[F[_], A](private val fa: F[A]) extends AnyVal {
+  def whileM[G[_]](p: F[Boolean])(implicit M: Monad[F], G: Alternative[G]): F[G[A]] = M.whileM(p)(fa)
+  def whileM_(p: F[Boolean])(implicit M: Monad[F]): F[Unit] = M.whileM_(p)(fa)
+  def untilM[G[_]](p: F[Boolean])(implicit M: Monad[F], G: Alternative[G]): F[G[A]] = M.untilM(fa)(p)
+  def untilM_(p: F[Boolean])(implicit M: Monad[F]): F[Unit] = M.untilM_(fa)(p)
+  def iterateWhile(p: A => Boolean)(implicit M: Monad[F]): F[A] = M.iterateWhile(fa)(p)
+  def iterateUntil(p: A => Boolean)(implicit M: Monad[F]): F[A] = M.iterateUntil(fa)(p)
+}
diff --git a/core/src/main/scala-3.x/src/main/scala/cats/arrow/FunctionKMacros.scala b/core/src/main/scala-3.x/src/main/scala/cats/arrow/FunctionKMacros.scala
deleted file mode 100644
index 639b6ccf7f..0000000000
--- a/core/src/main/scala-3.x/src/main/scala/cats/arrow/FunctionKMacros.scala
+++ /dev/null
@@ -1,4 +0,0 @@
-package cats
-package arrow
-
-private[arrow] class FunctionKMacroMethods
diff --git a/core/src/main/scala-3.x/src/main/scala/cats/syntax/MonadOps.scala b/core/src/main/scala-3.x/src/main/scala/cats/syntax/MonadOps.scala
deleted file mode 100644
index 8f445403ea..0000000000
--- a/core/src/main/scala-3.x/src/main/scala/cats/syntax/MonadOps.scala
+++ /dev/null
@@ -1,12 +0,0 @@
-package cats.syntax
-
-import cats.{Alternative, Monad}
-
-final class MonadOps[F[_], A](private val fa: F[A]) extends AnyVal {
-  def whileM[G[_]](using M: Monad[F], G: Alternative[G])(p: F[Boolean]): F[G[A]] = M.whileM(p)(fa)
-  def whileM_(using M: Monad[F])(p: F[Boolean]): F[Unit] = M.whileM_(p)(fa)
-  def untilM[G[_]](using M: Monad[F], G: Alternative[G])(p: F[Boolean]): F[G[A]] = M.untilM(fa)(p)
-  def untilM_(using M: Monad[F])(p: F[Boolean]): F[Unit] = M.untilM_(fa)(p)
-  def iterateWhile(using M: Monad[F])(p: A => Boolean): F[A] = M.iterateWhile(fa)(p)
-  def iterateUntil(using M: Monad[F])(p: A => Boolean): F[A] = M.iterateUntil(fa)(p)
-}
diff --git a/core/src/main/scala-3/src/main/scala/cats/arrow/FunctionKMacros.scala b/core/src/main/scala-3/src/main/scala/cats/arrow/FunctionKMacros.scala
new file mode 100644
index 0000000000..d84c45851d
--- /dev/null
+++ b/core/src/main/scala-3/src/main/scala/cats/arrow/FunctionKMacros.scala
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats
+package arrow
+
+private[arrow] class FunctionKMacroMethods
diff --git a/core/src/main/scala-3/src/main/scala/cats/compat.scala b/core/src/main/scala-3/src/main/scala/cats/compat.scala
new file mode 100644
index 0000000000..f324e9fc4d
--- /dev/null
+++ b/core/src/main/scala-3/src/main/scala/cats/compat.scala
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.compat
+
+private[cats] type targetName = scala.annotation.targetName
diff --git a/core/src/main/scala-3/src/main/scala/cats/syntax/MonadOps.scala b/core/src/main/scala-3/src/main/scala/cats/syntax/MonadOps.scala
new file mode 100644
index 0000000000..ef3e285bf4
--- /dev/null
+++ b/core/src/main/scala-3/src/main/scala/cats/syntax/MonadOps.scala
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.syntax
+
+import cats.{Alternative, Monad}
+
+final class MonadOps[F[_], A](private val fa: F[A]) extends AnyVal {
+  def whileM[G[_]](using M: Monad[F], G: Alternative[G])(p: F[Boolean]): F[G[A]] = M.whileM(p)(fa)
+  def whileM_(using M: Monad[F])(p: F[Boolean]): F[Unit] = M.whileM_(p)(fa)
+  def untilM[G[_]](using M: Monad[F], G: Alternative[G])(p: F[Boolean]): F[G[A]] = M.untilM(fa)(p)
+  def untilM_(using M: Monad[F])(p: F[Boolean]): F[Unit] = M.untilM_(fa)(p)
+  def iterateWhile(using M: Monad[F])(p: A => Boolean): F[A] = M.iterateWhile(fa)(p)
+  def iterateUntil(using M: Monad[F])(p: A => Boolean): F[A] = M.iterateUntil(fa)(p)
+}
diff --git a/core/src/main/scala/cats/Align.scala b/core/src/main/scala/cats/Align.scala
index 91e79d9bdf..9c6eda47b0 100644
--- a/core/src/main/scala/cats/Align.scala
+++ b/core/src/main/scala/cats/Align.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/Alternative.scala b/core/src/main/scala/cats/Alternative.scala
index a94821c0cc..0361e442d4 100644
--- a/core/src/main/scala/cats/Alternative.scala
+++ b/core/src/main/scala/cats/Alternative.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/Applicative.scala b/core/src/main/scala/cats/Applicative.scala
index ac6b5f5577..1d8a44d3b6 100644
--- a/core/src/main/scala/cats/Applicative.scala
+++ b/core/src/main/scala/cats/Applicative.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.arrow.Arrow
diff --git a/core/src/main/scala/cats/ApplicativeError.scala b/core/src/main/scala/cats/ApplicativeError.scala
index d36f8944fe..847930d56e 100644
--- a/core/src/main/scala/cats/ApplicativeError.scala
+++ b/core/src/main/scala/cats/ApplicativeError.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.ApplicativeError.CatchOnlyPartiallyApplied
diff --git a/core/src/main/scala/cats/Apply.scala b/core/src/main/scala/cats/Apply.scala
index 49ee0c0064..0c59f8ec1d 100644
--- a/core/src/main/scala/cats/Apply.scala
+++ b/core/src/main/scala/cats/Apply.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.{noop, typeclass}
diff --git a/core/src/main/scala/cats/Bifoldable.scala b/core/src/main/scala/cats/Bifoldable.scala
index 7ef4ab5db5..a87717464a 100644
--- a/core/src/main/scala/cats/Bifoldable.scala
+++ b/core/src/main/scala/cats/Bifoldable.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/Bifunctor.scala b/core/src/main/scala/cats/Bifunctor.scala
index 41190230ff..321bd97227 100644
--- a/core/src/main/scala/cats/Bifunctor.scala
+++ b/core/src/main/scala/cats/Bifunctor.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 import simulacrum.typeclass
 
diff --git a/core/src/main/scala/cats/Bimonad.scala b/core/src/main/scala/cats/Bimonad.scala
index 3369a28f39..8dd12825c0 100644
--- a/core/src/main/scala/cats/Bimonad.scala
+++ b/core/src/main/scala/cats/Bimonad.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/Bitraverse.scala b/core/src/main/scala/cats/Bitraverse.scala
index 84fab1eba0..6c10f2fa51 100644
--- a/core/src/main/scala/cats/Bitraverse.scala
+++ b/core/src/main/scala/cats/Bitraverse.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.{noop, typeclass}
diff --git a/core/src/main/scala/cats/CoflatMap.scala b/core/src/main/scala/cats/CoflatMap.scala
index eedf6b55bb..2395cbff75 100644
--- a/core/src/main/scala/cats/CoflatMap.scala
+++ b/core/src/main/scala/cats/CoflatMap.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/CommutativeApplicative.scala b/core/src/main/scala/cats/CommutativeApplicative.scala
index d55f53813a..b2bcec2d5c 100644
--- a/core/src/main/scala/cats/CommutativeApplicative.scala
+++ b/core/src/main/scala/cats/CommutativeApplicative.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.kernel.CommutativeMonoid
diff --git a/core/src/main/scala/cats/CommutativeApply.scala b/core/src/main/scala/cats/CommutativeApply.scala
index 82a98ad775..f0837c694e 100644
--- a/core/src/main/scala/cats/CommutativeApply.scala
+++ b/core/src/main/scala/cats/CommutativeApply.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.kernel.CommutativeSemigroup
diff --git a/core/src/main/scala/cats/CommutativeFlatMap.scala b/core/src/main/scala/cats/CommutativeFlatMap.scala
index 1eb4c7caf9..df54832ee7 100644
--- a/core/src/main/scala/cats/CommutativeFlatMap.scala
+++ b/core/src/main/scala/cats/CommutativeFlatMap.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/CommutativeMonad.scala b/core/src/main/scala/cats/CommutativeMonad.scala
index 8b5dfc8e5a..dae0821a89 100644
--- a/core/src/main/scala/cats/CommutativeMonad.scala
+++ b/core/src/main/scala/cats/CommutativeMonad.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/Comonad.scala b/core/src/main/scala/cats/Comonad.scala
index c3f4582a3e..c07aefd024 100644
--- a/core/src/main/scala/cats/Comonad.scala
+++ b/core/src/main/scala/cats/Comonad.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/Composed.scala b/core/src/main/scala/cats/Composed.scala
index bc607b8a38..6ad9f72fc9 100644
--- a/core/src/main/scala/cats/Composed.scala
+++ b/core/src/main/scala/cats/Composed.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 private[cats] trait ComposedDistributive[F[_], G[_]] extends Distributive[λ[α => F[G[α]]]] with ComposedFunctor[F, G] {
diff --git a/core/src/main/scala/cats/Contravariant.scala b/core/src/main/scala/cats/Contravariant.scala
index d174d54207..7430501c61 100644
--- a/core/src/main/scala/cats/Contravariant.scala
+++ b/core/src/main/scala/cats/Contravariant.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 import simulacrum.typeclass
 
diff --git a/core/src/main/scala/cats/ContravariantMonoidal.scala b/core/src/main/scala/cats/ContravariantMonoidal.scala
index 7c2f4be1cc..7a20f83153 100644
--- a/core/src/main/scala/cats/ContravariantMonoidal.scala
+++ b/core/src/main/scala/cats/ContravariantMonoidal.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/ContravariantSemigroupal.scala b/core/src/main/scala/cats/ContravariantSemigroupal.scala
index 51322ed787..43f1969996 100644
--- a/core/src/main/scala/cats/ContravariantSemigroupal.scala
+++ b/core/src/main/scala/cats/ContravariantSemigroupal.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/Defer.scala b/core/src/main/scala/cats/Defer.scala
index 9cbfee96ef..068778ab55 100644
--- a/core/src/main/scala/cats/Defer.scala
+++ b/core/src/main/scala/cats/Defer.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import scala.util.control.TailCalls.TailRec
diff --git a/core/src/main/scala/cats/Distributive.scala b/core/src/main/scala/cats/Distributive.scala
index ce28530225..7390ea0326 100644
--- a/core/src/main/scala/cats/Distributive.scala
+++ b/core/src/main/scala/cats/Distributive.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 import simulacrum.typeclass
 
diff --git a/core/src/main/scala/cats/Eval.scala b/core/src/main/scala/cats/Eval.scala
index 3b52cfcb22..2e793ae388 100644
--- a/core/src/main/scala/cats/Eval.scala
+++ b/core/src/main/scala/cats/Eval.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import scala.annotation.tailrec
diff --git a/core/src/main/scala/cats/FlatMap.scala b/core/src/main/scala/cats/FlatMap.scala
index 48e48bb829..fd24549e05 100644
--- a/core/src/main/scala/cats/FlatMap.scala
+++ b/core/src/main/scala/cats/FlatMap.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/Foldable.scala b/core/src/main/scala/cats/Foldable.scala
index d5bc0f2a84..01cd784428 100644
--- a/core/src/main/scala/cats/Foldable.scala
+++ b/core/src/main/scala/cats/Foldable.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import scala.collection.mutable
diff --git a/core/src/main/scala/cats/Functor.scala b/core/src/main/scala/cats/Functor.scala
index fbb4192265..c9f7558a00 100644
--- a/core/src/main/scala/cats/Functor.scala
+++ b/core/src/main/scala/cats/Functor.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.{noop, typeclass}
diff --git a/core/src/main/scala/cats/FunctorFilter.scala b/core/src/main/scala/cats/FunctorFilter.scala
index 5cefbbfd9f..32435f03d4 100644
--- a/core/src/main/scala/cats/FunctorFilter.scala
+++ b/core/src/main/scala/cats/FunctorFilter.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import scala.collection.immutable.{Queue, Seq, SortedMap}
diff --git a/core/src/main/scala/cats/Inject.scala b/core/src/main/scala/cats/Inject.scala
index 3433246451..9032b87c5f 100644
--- a/core/src/main/scala/cats/Inject.scala
+++ b/core/src/main/scala/cats/Inject.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 /**
diff --git a/core/src/main/scala/cats/InjectK.scala b/core/src/main/scala/cats/InjectK.scala
index 73c2bcba6d..a9afcc4a9c 100644
--- a/core/src/main/scala/cats/InjectK.scala
+++ b/core/src/main/scala/cats/InjectK.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.arrow.FunctionK
diff --git a/core/src/main/scala/cats/Invariant.scala b/core/src/main/scala/cats/Invariant.scala
index 4ec85f0931..626046cc9d 100644
--- a/core/src/main/scala/cats/Invariant.scala
+++ b/core/src/main/scala/cats/Invariant.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.arrow.Arrow
@@ -105,6 +126,10 @@ object Invariant extends ScalaVersionSpecificInvariantInstances with InvariantIn
   implicit def catsInstancesForId
     : Distributive[Id] with Bimonad[Id] with CommutativeMonad[Id] with NonEmptyTraverse[Id] =
     cats.catsInstancesForId
+  @deprecated("Added for bincompat", "2.8.0")
+  @cats.compat.targetName("catsInstancesForId")
+  def catsInstancesForIdCompat2_6_1: Comonad[Id] =
+    cats.catsInstancesForId
   implicit def catsMonadErrorForEither[A]: MonadError[Either[A, *], A] =
     cats.instances.either.catsStdInstancesForEither[A]
   implicit def catsInstancesForOption
diff --git a/core/src/main/scala/cats/InvariantMonoidal.scala b/core/src/main/scala/cats/InvariantMonoidal.scala
index fede3805e4..2489fbce45 100644
--- a/core/src/main/scala/cats/InvariantMonoidal.scala
+++ b/core/src/main/scala/cats/InvariantMonoidal.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/InvariantSemigroupal.scala b/core/src/main/scala/cats/InvariantSemigroupal.scala
index 9471cf1c3f..89ea9197a6 100644
--- a/core/src/main/scala/cats/InvariantSemigroupal.scala
+++ b/core/src/main/scala/cats/InvariantSemigroupal.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/Monad.scala b/core/src/main/scala/cats/Monad.scala
index 0022c7a655..6e050d4e99 100644
--- a/core/src/main/scala/cats/Monad.scala
+++ b/core/src/main/scala/cats/Monad.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.{noop, typeclass}
diff --git a/core/src/main/scala/cats/MonadError.scala b/core/src/main/scala/cats/MonadError.scala
index 97e8264250..49e8d1d8c1 100644
--- a/core/src/main/scala/cats/MonadError.scala
+++ b/core/src/main/scala/cats/MonadError.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 /**
diff --git a/core/src/main/scala/cats/MonoidK.scala b/core/src/main/scala/cats/MonoidK.scala
index 43259465f4..dd56a3ad3b 100644
--- a/core/src/main/scala/cats/MonoidK.scala
+++ b/core/src/main/scala/cats/MonoidK.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.kernel.compat.scalaVersionSpecific._
diff --git a/core/src/main/scala/cats/NonEmptyAlternative.scala b/core/src/main/scala/cats/NonEmptyAlternative.scala
index 357316f518..75891de55a 100644
--- a/core/src/main/scala/cats/NonEmptyAlternative.scala
+++ b/core/src/main/scala/cats/NonEmptyAlternative.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/NonEmptyTraverse.scala b/core/src/main/scala/cats/NonEmptyTraverse.scala
index f7671d2584..a182ec9713 100644
--- a/core/src/main/scala/cats/NonEmptyTraverse.scala
+++ b/core/src/main/scala/cats/NonEmptyTraverse.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/NotNull.scala b/core/src/main/scala/cats/NotNull.scala
index ec0e308a63..137eaff008 100644
--- a/core/src/main/scala/cats/NotNull.scala
+++ b/core/src/main/scala/cats/NotNull.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 /**
diff --git a/core/src/main/scala/cats/Parallel.scala b/core/src/main/scala/cats/Parallel.scala
index 7f8ab11ec5..a8f618f4df 100644
--- a/core/src/main/scala/cats/Parallel.scala
+++ b/core/src/main/scala/cats/Parallel.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.arrow.FunctionK
diff --git a/core/src/main/scala/cats/Reducible.scala b/core/src/main/scala/cats/Reducible.scala
index e443890a87..488d018120 100644
--- a/core/src/main/scala/cats/Reducible.scala
+++ b/core/src/main/scala/cats/Reducible.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.Foldable.Source
diff --git a/core/src/main/scala/cats/Representable.scala b/core/src/main/scala/cats/Representable.scala
index 7f3460c6ad..0dfbf3a464 100644
--- a/core/src/main/scala/cats/Representable.scala
+++ b/core/src/main/scala/cats/Representable.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 /**
diff --git a/core/src/main/scala/cats/SemigroupK.scala b/core/src/main/scala/cats/SemigroupK.scala
index f376428213..0990010462 100644
--- a/core/src/main/scala/cats/SemigroupK.scala
+++ b/core/src/main/scala/cats/SemigroupK.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import scala.annotation.tailrec
diff --git a/core/src/main/scala/cats/Semigroupal.scala b/core/src/main/scala/cats/Semigroupal.scala
index e93d711b20..0255a5f06b 100644
--- a/core/src/main/scala/cats/Semigroupal.scala
+++ b/core/src/main/scala/cats/Semigroupal.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.kernel.CommutativeSemigroup
diff --git a/core/src/main/scala/cats/Show.scala b/core/src/main/scala/cats/Show.scala
index de7b208a71..163e2f2f96 100644
--- a/core/src/main/scala/cats/Show.scala
+++ b/core/src/main/scala/cats/Show.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import java.util.UUID
diff --git a/core/src/main/scala/cats/StackSafeMonad.scala b/core/src/main/scala/cats/StackSafeMonad.scala
index 8b815dc6f1..c7abf74a15 100644
--- a/core/src/main/scala/cats/StackSafeMonad.scala
+++ b/core/src/main/scala/cats/StackSafeMonad.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import scala.util.{Either, Left, Right}
diff --git a/core/src/main/scala/cats/Traverse.scala b/core/src/main/scala/cats/Traverse.scala
index 3a9661c322..b380f15229 100644
--- a/core/src/main/scala/cats/Traverse.scala
+++ b/core/src/main/scala/cats/Traverse.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.data.State
diff --git a/core/src/main/scala/cats/TraverseFilter.scala b/core/src/main/scala/cats/TraverseFilter.scala
index 9464d2caf6..76628ac408 100644
--- a/core/src/main/scala/cats/TraverseFilter.scala
+++ b/core/src/main/scala/cats/TraverseFilter.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.data.State
diff --git a/core/src/main/scala/cats/UnorderedFoldable.scala b/core/src/main/scala/cats/UnorderedFoldable.scala
index 668ecf928c..86076885c3 100644
--- a/core/src/main/scala/cats/UnorderedFoldable.scala
+++ b/core/src/main/scala/cats/UnorderedFoldable.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import cats.kernel.CommutativeMonoid
diff --git a/core/src/main/scala/cats/UnorderedTraverse.scala b/core/src/main/scala/cats/UnorderedTraverse.scala
index ef245b90ce..a1a9e81e11 100644
--- a/core/src/main/scala/cats/UnorderedTraverse.scala
+++ b/core/src/main/scala/cats/UnorderedTraverse.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 import simulacrum.typeclass
diff --git a/core/src/main/scala/cats/arrow/Arrow.scala b/core/src/main/scala/cats/arrow/Arrow.scala
index eaafb764a8..641c2f5523 100644
--- a/core/src/main/scala/cats/arrow/Arrow.scala
+++ b/core/src/main/scala/cats/arrow/Arrow.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package arrow
 
diff --git a/core/src/main/scala/cats/arrow/ArrowChoice.scala b/core/src/main/scala/cats/arrow/ArrowChoice.scala
index fbdee8b3fc..f54331215e 100644
--- a/core/src/main/scala/cats/arrow/ArrowChoice.scala
+++ b/core/src/main/scala/cats/arrow/ArrowChoice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package arrow
 
diff --git a/core/src/main/scala/cats/arrow/Category.scala b/core/src/main/scala/cats/arrow/Category.scala
index c8c218b8ac..d58b75a7e0 100644
--- a/core/src/main/scala/cats/arrow/Category.scala
+++ b/core/src/main/scala/cats/arrow/Category.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package arrow
 
diff --git a/core/src/main/scala/cats/arrow/Choice.scala b/core/src/main/scala/cats/arrow/Choice.scala
index 5672aec3fd..4c2ecb7010 100644
--- a/core/src/main/scala/cats/arrow/Choice.scala
+++ b/core/src/main/scala/cats/arrow/Choice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package arrow
 
diff --git a/core/src/main/scala/cats/arrow/CommutativeArrow.scala b/core/src/main/scala/cats/arrow/CommutativeArrow.scala
index 6c0d78cb4b..7ad8108cc4 100644
--- a/core/src/main/scala/cats/arrow/CommutativeArrow.scala
+++ b/core/src/main/scala/cats/arrow/CommutativeArrow.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package arrow
 
diff --git a/core/src/main/scala/cats/arrow/Compose.scala b/core/src/main/scala/cats/arrow/Compose.scala
index 987399d676..396c129df0 100644
--- a/core/src/main/scala/cats/arrow/Compose.scala
+++ b/core/src/main/scala/cats/arrow/Compose.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package arrow
 
diff --git a/core/src/main/scala/cats/arrow/FunctionK.scala b/core/src/main/scala/cats/arrow/FunctionK.scala
index 4f513f0ac8..a371919461 100644
--- a/core/src/main/scala/cats/arrow/FunctionK.scala
+++ b/core/src/main/scala/cats/arrow/FunctionK.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package arrow
 
diff --git a/core/src/main/scala/cats/arrow/Profunctor.scala b/core/src/main/scala/cats/arrow/Profunctor.scala
index 8cd69e3228..45025f44e6 100644
--- a/core/src/main/scala/cats/arrow/Profunctor.scala
+++ b/core/src/main/scala/cats/arrow/Profunctor.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package arrow
 
diff --git a/core/src/main/scala/cats/arrow/Strong.scala b/core/src/main/scala/cats/arrow/Strong.scala
index 04ce3ca9dd..adcf2bc018 100644
--- a/core/src/main/scala/cats/arrow/Strong.scala
+++ b/core/src/main/scala/cats/arrow/Strong.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package arrow
 
diff --git a/core/src/main/scala/cats/conversions/VarianceConversions.scala b/core/src/main/scala/cats/conversions/VarianceConversions.scala
index c463a3d077..6d8cd4640b 100644
--- a/core/src/main/scala/cats/conversions/VarianceConversions.scala
+++ b/core/src/main/scala/cats/conversions/VarianceConversions.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package conversions
 import cats.arrow.Profunctor
diff --git a/core/src/main/scala/cats/conversions/all.scala b/core/src/main/scala/cats/conversions/all.scala
index 676b563542..8692b921c1 100644
--- a/core/src/main/scala/cats/conversions/all.scala
+++ b/core/src/main/scala/cats/conversions/all.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.conversions
 
 trait AllConversions extends VarianceConversions
diff --git a/core/src/main/scala/cats/conversions/package.scala b/core/src/main/scala/cats/conversions/package.scala
index ac47bccbf5..dba42ee66c 100644
--- a/core/src/main/scala/cats/conversions/package.scala
+++ b/core/src/main/scala/cats/conversions/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 package object conversions {
diff --git a/core/src/main/scala/cats/data/AbstractNonEmptyInstances.scala b/core/src/main/scala/cats/data/AbstractNonEmptyInstances.scala
index b5f4eacd3e..7c22a21bf8 100644
--- a/core/src/main/scala/cats/data/AbstractNonEmptyInstances.scala
+++ b/core/src/main/scala/cats/data/AbstractNonEmptyInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/AndThen.scala b/core/src/main/scala/cats/data/AndThen.scala
index af5f8d546b..e7b42bb149 100644
--- a/core/src/main/scala/cats/data/AndThen.scala
+++ b/core/src/main/scala/cats/data/AndThen.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Binested.scala b/core/src/main/scala/cats/data/Binested.scala
index 22a822c44e..cd440169b5 100644
--- a/core/src/main/scala/cats/data/Binested.scala
+++ b/core/src/main/scala/cats/data/Binested.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Chain.scala b/core/src/main/scala/cats/data/Chain.scala
index b302258509..669364cf4e 100644
--- a/core/src/main/scala/cats/data/Chain.scala
+++ b/core/src/main/scala/cats/data/Chain.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Cokleisli.scala b/core/src/main/scala/cats/data/Cokleisli.scala
index be1c898d36..06f1fb8ccd 100644
--- a/core/src/main/scala/cats/data/Cokleisli.scala
+++ b/core/src/main/scala/cats/data/Cokleisli.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Const.scala b/core/src/main/scala/cats/data/Const.scala
index 6cf593457e..28626fa51a 100644
--- a/core/src/main/scala/cats/data/Const.scala
+++ b/core/src/main/scala/cats/data/Const.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/ContT.scala b/core/src/main/scala/cats/data/ContT.scala
index efbc41c54f..4b2e7b4d77 100644
--- a/core/src/main/scala/cats/data/ContT.scala
+++ b/core/src/main/scala/cats/data/ContT.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/EitherK.scala b/core/src/main/scala/cats/data/EitherK.scala
index e5719bb2fb..472ad42c79 100644
--- a/core/src/main/scala/cats/data/EitherK.scala
+++ b/core/src/main/scala/cats/data/EitherK.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/EitherT.scala b/core/src/main/scala/cats/data/EitherT.scala
index 5e1fecc05e..bc59e63440 100644
--- a/core/src/main/scala/cats/data/EitherT.scala
+++ b/core/src/main/scala/cats/data/EitherT.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Func.scala b/core/src/main/scala/cats/data/Func.scala
index 0961864b38..6ca7327297 100644
--- a/core/src/main/scala/cats/data/Func.scala
+++ b/core/src/main/scala/cats/data/Func.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/IdT.scala b/core/src/main/scala/cats/data/IdT.scala
index fc32760655..0ca6b3781b 100644
--- a/core/src/main/scala/cats/data/IdT.scala
+++ b/core/src/main/scala/cats/data/IdT.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/IndexedReaderWriterStateT.scala b/core/src/main/scala/cats/data/IndexedReaderWriterStateT.scala
index 2946310fe9..26b684ef54 100644
--- a/core/src/main/scala/cats/data/IndexedReaderWriterStateT.scala
+++ b/core/src/main/scala/cats/data/IndexedReaderWriterStateT.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/IndexedStateT.scala b/core/src/main/scala/cats/data/IndexedStateT.scala
index b3ae45afd5..92ff65a2f5 100644
--- a/core/src/main/scala/cats/data/IndexedStateT.scala
+++ b/core/src/main/scala/cats/data/IndexedStateT.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Ior.scala b/core/src/main/scala/cats/data/Ior.scala
index ce2fcdb478..9c6def13d0 100644
--- a/core/src/main/scala/cats/data/Ior.scala
+++ b/core/src/main/scala/cats/data/Ior.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/IorT.scala b/core/src/main/scala/cats/data/IorT.scala
index 80d867b49b..f423c326f5 100644
--- a/core/src/main/scala/cats/data/IorT.scala
+++ b/core/src/main/scala/cats/data/IorT.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Kleisli.scala b/core/src/main/scala/cats/data/Kleisli.scala
index 2374161467..5271688f54 100644
--- a/core/src/main/scala/cats/data/Kleisli.scala
+++ b/core/src/main/scala/cats/data/Kleisli.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Nested.scala b/core/src/main/scala/cats/data/Nested.scala
index 7c17c8f8ca..28bb86524c 100644
--- a/core/src/main/scala/cats/data/Nested.scala
+++ b/core/src/main/scala/cats/data/Nested.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Newtype.scala b/core/src/main/scala/cats/data/Newtype.scala
index 3aa8566357..dfe162bbdd 100644
--- a/core/src/main/scala/cats/data/Newtype.scala
+++ b/core/src/main/scala/cats/data/Newtype.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Newtype2.scala b/core/src/main/scala/cats/data/Newtype2.scala
index a6307cdc73..78a458d0f4 100644
--- a/core/src/main/scala/cats/data/Newtype2.scala
+++ b/core/src/main/scala/cats/data/Newtype2.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/NonEmptyChain.scala b/core/src/main/scala/cats/data/NonEmptyChain.scala
index 6d0f53f6ea..358a7a2a3a 100644
--- a/core/src/main/scala/cats/data/NonEmptyChain.scala
+++ b/core/src/main/scala/cats/data/NonEmptyChain.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/NonEmptyCollection.scala b/core/src/main/scala/cats/data/NonEmptyCollection.scala
index 5c8e4d5622..d48b435b85 100644
--- a/core/src/main/scala/cats/data/NonEmptyCollection.scala
+++ b/core/src/main/scala/cats/data/NonEmptyCollection.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.data
 
 import cats.Show
diff --git a/core/src/main/scala/cats/data/NonEmptyList.scala b/core/src/main/scala/cats/data/NonEmptyList.scala
index 62612e5f29..863a65f5a4 100644
--- a/core/src/main/scala/cats/data/NonEmptyList.scala
+++ b/core/src/main/scala/cats/data/NonEmptyList.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/NonEmptyMapImpl.scala b/core/src/main/scala/cats/data/NonEmptyMapImpl.scala
index 903b320e1b..dfef97b314 100644
--- a/core/src/main/scala/cats/data/NonEmptyMapImpl.scala
+++ b/core/src/main/scala/cats/data/NonEmptyMapImpl.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/NonEmptySeq.scala b/core/src/main/scala/cats/data/NonEmptySeq.scala
index d15542d0d5..442e430a45 100644
--- a/core/src/main/scala/cats/data/NonEmptySeq.scala
+++ b/core/src/main/scala/cats/data/NonEmptySeq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/NonEmptySet.scala b/core/src/main/scala/cats/data/NonEmptySet.scala
index 0fc3328ebe..9b6526d2c2 100644
--- a/core/src/main/scala/cats/data/NonEmptySet.scala
+++ b/core/src/main/scala/cats/data/NonEmptySet.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/NonEmptyVector.scala b/core/src/main/scala/cats/data/NonEmptyVector.scala
index bdc9e139e3..f5f1527042 100644
--- a/core/src/main/scala/cats/data/NonEmptyVector.scala
+++ b/core/src/main/scala/cats/data/NonEmptyVector.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/OneAnd.scala b/core/src/main/scala/cats/data/OneAnd.scala
index e6f0762b43..364862fc4a 100644
--- a/core/src/main/scala/cats/data/OneAnd.scala
+++ b/core/src/main/scala/cats/data/OneAnd.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Op.scala b/core/src/main/scala/cats/data/Op.scala
index 1ad065656c..bb341bc536 100644
--- a/core/src/main/scala/cats/data/Op.scala
+++ b/core/src/main/scala/cats/data/Op.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/OptionT.scala b/core/src/main/scala/cats/data/OptionT.scala
index 6ed33e5e17..ae14f46e3e 100644
--- a/core/src/main/scala/cats/data/OptionT.scala
+++ b/core/src/main/scala/cats/data/OptionT.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/RepresentableStore.scala b/core/src/main/scala/cats/data/RepresentableStore.scala
index 1eee35d96c..867e1dff40 100644
--- a/core/src/main/scala/cats/data/RepresentableStore.scala
+++ b/core/src/main/scala/cats/data/RepresentableStore.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.data
 
 import cats.{Comonad, Functor, Representable}
diff --git a/core/src/main/scala/cats/data/RepresentableStoreT.scala b/core/src/main/scala/cats/data/RepresentableStoreT.scala
index 1e1d9ac51f..5cd2832da6 100644
--- a/core/src/main/scala/cats/data/RepresentableStoreT.scala
+++ b/core/src/main/scala/cats/data/RepresentableStoreT.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.data
 
 import cats.{Applicative, Comonad, Functor, Monoid, Representable}
diff --git a/core/src/main/scala/cats/data/Tuple2K.scala b/core/src/main/scala/cats/data/Tuple2K.scala
index 83ea5b3c91..7ed217918a 100644
--- a/core/src/main/scala/cats/data/Tuple2K.scala
+++ b/core/src/main/scala/cats/data/Tuple2K.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/Validated.scala b/core/src/main/scala/cats/data/Validated.scala
index d4475fb10a..847b979536 100644
--- a/core/src/main/scala/cats/data/Validated.scala
+++ b/core/src/main/scala/cats/data/Validated.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/WriterT.scala b/core/src/main/scala/cats/data/WriterT.scala
index 215b08f99a..b906df165d 100644
--- a/core/src/main/scala/cats/data/WriterT.scala
+++ b/core/src/main/scala/cats/data/WriterT.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/ZipList.scala b/core/src/main/scala/cats/data/ZipList.scala
index 7240ecc1a0..431efa406e 100644
--- a/core/src/main/scala/cats/data/ZipList.scala
+++ b/core/src/main/scala/cats/data/ZipList.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/ZipSeq.scala b/core/src/main/scala/cats/data/ZipSeq.scala
index b5e3bf1400..af6e706ae3 100644
--- a/core/src/main/scala/cats/data/ZipSeq.scala
+++ b/core/src/main/scala/cats/data/ZipSeq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/ZipVector.scala b/core/src/main/scala/cats/data/ZipVector.scala
index 75f5a45736..27a88cd545 100644
--- a/core/src/main/scala/cats/data/ZipVector.scala
+++ b/core/src/main/scala/cats/data/ZipVector.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package data
 
diff --git a/core/src/main/scala/cats/data/package.scala b/core/src/main/scala/cats/data/package.scala
index e4b263674d..4ac5961361 100644
--- a/core/src/main/scala/cats/data/package.scala
+++ b/core/src/main/scala/cats/data/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 package object data extends ScalaVersionSpecificPackage {
diff --git a/core/src/main/scala/cats/evidence/As.scala b/core/src/main/scala/cats/evidence/As.scala
index ece14025fa..7d6b800d13 100644
--- a/core/src/main/scala/cats/evidence/As.scala
+++ b/core/src/main/scala/cats/evidence/As.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package evidence
 
diff --git a/core/src/main/scala/cats/evidence/Is.scala b/core/src/main/scala/cats/evidence/Is.scala
index 4bff2ac6d2..5223e3d498 100644
--- a/core/src/main/scala/cats/evidence/Is.scala
+++ b/core/src/main/scala/cats/evidence/Is.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.evidence
 
 import cats.Id
diff --git a/core/src/main/scala/cats/evidence/package.scala b/core/src/main/scala/cats/evidence/package.scala
index 8e127a66c6..292b7af115 100644
--- a/core/src/main/scala/cats/evidence/package.scala
+++ b/core/src/main/scala/cats/evidence/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 package object evidence {
diff --git a/core/src/main/scala/cats/implicits.scala b/core/src/main/scala/cats/implicits.scala
index 5c2f3202b9..9404eda7b4 100644
--- a/core/src/main/scala/cats/implicits.scala
+++ b/core/src/main/scala/cats/implicits.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 object implicits
diff --git a/core/src/main/scala/cats/instances/StaticMethods.scala b/core/src/main/scala/cats/instances/StaticMethods.scala
new file mode 100644
index 0000000000..83658b8922
--- /dev/null
+++ b/core/src/main/scala/cats/instances/StaticMethods.scala
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.instances
+
+import scala.collection.mutable.Builder
+
+private[instances] object StaticMethods {
+
+  def appendAll[F <: Iterable[A], A](it: Iterator[F], bldr: Builder[A, F]): bldr.type = {
+    while (it.hasNext) {
+      bldr ++= it.next()
+    }
+    bldr
+  }
+
+}
diff --git a/core/src/main/scala/cats/instances/SymbolInstances.scala b/core/src/main/scala/cats/instances/SymbolInstances.scala
index 4ec75cc115..843e1228ae 100644
--- a/core/src/main/scala/cats/instances/SymbolInstances.scala
+++ b/core/src/main/scala/cats/instances/SymbolInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.instances
 
 import cats.Show
diff --git a/core/src/main/scala/cats/instances/anyval.scala b/core/src/main/scala/cats/instances/anyval.scala
index 8f8827738f..aea51929a0 100644
--- a/core/src/main/scala/cats/instances/anyval.scala
+++ b/core/src/main/scala/cats/instances/anyval.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/bigDecimal.scala b/core/src/main/scala/cats/instances/bigDecimal.scala
index a12779cd90..c6fdb149c1 100644
--- a/core/src/main/scala/cats/instances/bigDecimal.scala
+++ b/core/src/main/scala/cats/instances/bigDecimal.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/bigInt.scala b/core/src/main/scala/cats/instances/bigInt.scala
index 8aab1e01cc..ee791d8133 100644
--- a/core/src/main/scala/cats/instances/bigInt.scala
+++ b/core/src/main/scala/cats/instances/bigInt.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/bitSet.scala b/core/src/main/scala/cats/instances/bitSet.scala
index dc14fe8276..1c31e6bddf 100644
--- a/core/src/main/scala/cats/instances/bitSet.scala
+++ b/core/src/main/scala/cats/instances/bitSet.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.instances
 
 import scala.collection.immutable.BitSet
diff --git a/core/src/main/scala/cats/instances/deadline.scala b/core/src/main/scala/cats/instances/deadline.scala
index cfbc6b7e15..024d5ab603 100644
--- a/core/src/main/scala/cats/instances/deadline.scala
+++ b/core/src/main/scala/cats/instances/deadline.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/duration.scala b/core/src/main/scala/cats/instances/duration.scala
index 21e2e08299..539d41fee8 100644
--- a/core/src/main/scala/cats/instances/duration.scala
+++ b/core/src/main/scala/cats/instances/duration.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/either.scala b/core/src/main/scala/cats/instances/either.scala
index 8efa5ef581..70c3b0ea71 100644
--- a/core/src/main/scala/cats/instances/either.scala
+++ b/core/src/main/scala/cats/instances/either.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/eq.scala b/core/src/main/scala/cats/instances/eq.scala
index 69c3429721..0110f41cc2 100644
--- a/core/src/main/scala/cats/instances/eq.scala
+++ b/core/src/main/scala/cats/instances/eq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/equiv.scala b/core/src/main/scala/cats/instances/equiv.scala
index 6730aeb1cc..19916ab3f9 100644
--- a/core/src/main/scala/cats/instances/equiv.scala
+++ b/core/src/main/scala/cats/instances/equiv.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/finiteDuration.scala b/core/src/main/scala/cats/instances/finiteDuration.scala
index f25645a8c9..9197274260 100644
--- a/core/src/main/scala/cats/instances/finiteDuration.scala
+++ b/core/src/main/scala/cats/instances/finiteDuration.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/function.scala b/core/src/main/scala/cats/instances/function.scala
index 48054b57c1..29a07db641 100644
--- a/core/src/main/scala/cats/instances/function.scala
+++ b/core/src/main/scala/cats/instances/function.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/future.scala b/core/src/main/scala/cats/instances/future.scala
index a08ad7a371..af0b4d747f 100644
--- a/core/src/main/scala/cats/instances/future.scala
+++ b/core/src/main/scala/cats/instances/future.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/hash.scala b/core/src/main/scala/cats/instances/hash.scala
index 5b55765823..4e97a194ce 100644
--- a/core/src/main/scala/cats/instances/hash.scala
+++ b/core/src/main/scala/cats/instances/hash.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/invariant.scala b/core/src/main/scala/cats/instances/invariant.scala
index f79f248e27..a33bccd7b0 100644
--- a/core/src/main/scala/cats/instances/invariant.scala
+++ b/core/src/main/scala/cats/instances/invariant.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.instances
 
 import cats.kernel._
diff --git a/core/src/main/scala/cats/instances/list.scala b/core/src/main/scala/cats/instances/list.scala
index cdff56d6dc..d7ed75d51b 100644
--- a/core/src/main/scala/cats/instances/list.scala
+++ b/core/src/main/scala/cats/instances/list.scala
@@ -1,8 +1,29 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
 import cats.data.{Chain, ZipList}
-import cats.instances.instances.appendAll
+import cats.instances.StaticMethods.appendAll
 import cats.kernel.compat.scalaVersionSpecific._
 import cats.kernel.instances.StaticMethods.wrapMutableIndexedSeq
 import cats.syntax.show._
diff --git a/core/src/main/scala/cats/instances/map.scala b/core/src/main/scala/cats/instances/map.scala
index 02960cf0a1..4eefa6a8ac 100644
--- a/core/src/main/scala/cats/instances/map.scala
+++ b/core/src/main/scala/cats/instances/map.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/option.scala b/core/src/main/scala/cats/instances/option.scala
index a2761dec93..8e99c208c1 100644
--- a/core/src/main/scala/cats/instances/option.scala
+++ b/core/src/main/scala/cats/instances/option.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/order.scala b/core/src/main/scala/cats/instances/order.scala
index 96b26eefba..9a107a6f72 100644
--- a/core/src/main/scala/cats/instances/order.scala
+++ b/core/src/main/scala/cats/instances/order.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/ordering.scala b/core/src/main/scala/cats/instances/ordering.scala
index 23cbd7e071..f900232102 100644
--- a/core/src/main/scala/cats/instances/ordering.scala
+++ b/core/src/main/scala/cats/instances/ordering.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/package.scala b/core/src/main/scala/cats/instances/package.scala
deleted file mode 100644
index 97ddada58b..0000000000
--- a/core/src/main/scala/cats/instances/package.scala
+++ /dev/null
@@ -1,14 +0,0 @@
-package cats.instances
-
-import scala.collection.mutable.Builder
-
-private[instances] object instances {
-
-  def appendAll[F <: Iterable[A], A](it: Iterator[F], bldr: Builder[A, F]): bldr.type = {
-    while (it.hasNext) {
-      bldr ++= it.next()
-    }
-    bldr
-  }
-
-}
diff --git a/core/src/main/scala/cats/instances/parallel.scala b/core/src/main/scala/cats/instances/parallel.scala
index 9b27a747e3..7949854e3c 100644
--- a/core/src/main/scala/cats/instances/parallel.scala
+++ b/core/src/main/scala/cats/instances/parallel.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/partialFunction.scala b/core/src/main/scala/cats/instances/partialFunction.scala
index 98a0bec94c..7ba7fbef49 100644
--- a/core/src/main/scala/cats/instances/partialFunction.scala
+++ b/core/src/main/scala/cats/instances/partialFunction.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.instances
 import cats.arrow.{ArrowChoice, CommutativeArrow}
 
diff --git a/core/src/main/scala/cats/instances/partialOrder.scala b/core/src/main/scala/cats/instances/partialOrder.scala
index e9121dd182..bfaa2c3a82 100644
--- a/core/src/main/scala/cats/instances/partialOrder.scala
+++ b/core/src/main/scala/cats/instances/partialOrder.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 import cats.kernel.instances.unit._
diff --git a/core/src/main/scala/cats/instances/partialOrdering.scala b/core/src/main/scala/cats/instances/partialOrdering.scala
index ce57853f32..0830000e77 100644
--- a/core/src/main/scala/cats/instances/partialOrdering.scala
+++ b/core/src/main/scala/cats/instances/partialOrdering.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/queue.scala b/core/src/main/scala/cats/instances/queue.scala
index 6333566193..c92c4517fa 100644
--- a/core/src/main/scala/cats/instances/queue.scala
+++ b/core/src/main/scala/cats/instances/queue.scala
@@ -1,8 +1,29 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
 import cats.data.Chain
-import cats.instances.instances.appendAll
+import cats.instances.StaticMethods.appendAll
 import cats.kernel.compat.scalaVersionSpecific._
 import cats.kernel.instances.StaticMethods.wrapMutableIndexedSeq
 import cats.syntax.show._
diff --git a/core/src/main/scala/cats/instances/seq.scala b/core/src/main/scala/cats/instances/seq.scala
index d02528306c..60345738c3 100644
--- a/core/src/main/scala/cats/instances/seq.scala
+++ b/core/src/main/scala/cats/instances/seq.scala
@@ -1,8 +1,29 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
 import cats.data.{Chain, ZipSeq}
-import cats.instances.instances.appendAll
+import cats.instances.StaticMethods.appendAll
 import cats.kernel.compat.scalaVersionSpecific._
 
 import scala.annotation.tailrec
diff --git a/core/src/main/scala/cats/instances/set.scala b/core/src/main/scala/cats/instances/set.scala
index a63d0fe64b..2e289c8857 100644
--- a/core/src/main/scala/cats/instances/set.scala
+++ b/core/src/main/scala/cats/instances/set.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/sortedMap.scala b/core/src/main/scala/cats/instances/sortedMap.scala
index 81caffbbda..6454ffb686 100644
--- a/core/src/main/scala/cats/instances/sortedMap.scala
+++ b/core/src/main/scala/cats/instances/sortedMap.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.instances
 
 import cats._
diff --git a/core/src/main/scala/cats/instances/sortedSet.scala b/core/src/main/scala/cats/instances/sortedSet.scala
index 54ed34ea07..bcfcb96e36 100644
--- a/core/src/main/scala/cats/instances/sortedSet.scala
+++ b/core/src/main/scala/cats/instances/sortedSet.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/string.scala b/core/src/main/scala/cats/instances/string.scala
index a4c278464b..28da0fb39f 100644
--- a/core/src/main/scala/cats/instances/string.scala
+++ b/core/src/main/scala/cats/instances/string.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/symbol/package.scala b/core/src/main/scala/cats/instances/symbol/package.scala
index 769d9fb97b..0bae34f9d8 100644
--- a/core/src/main/scala/cats/instances/symbol/package.scala
+++ b/core/src/main/scala/cats/instances/symbol/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/tailrec.scala b/core/src/main/scala/cats/instances/tailrec.scala
index fc125a2ae4..434e676aba 100644
--- a/core/src/main/scala/cats/instances/tailrec.scala
+++ b/core/src/main/scala/cats/instances/tailrec.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/try.scala b/core/src/main/scala/cats/instances/try.scala
index f2326c2beb..414935ec5c 100644
--- a/core/src/main/scala/cats/instances/try.scala
+++ b/core/src/main/scala/cats/instances/try.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/tuple.scala b/core/src/main/scala/cats/instances/tuple.scala
index b74d9bbb1c..5fe476b7c2 100644
--- a/core/src/main/scala/cats/instances/tuple.scala
+++ b/core/src/main/scala/cats/instances/tuple.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/uuid.scala b/core/src/main/scala/cats/instances/uuid.scala
index d01406d461..d516f88878 100644
--- a/core/src/main/scala/cats/instances/uuid.scala
+++ b/core/src/main/scala/cats/instances/uuid.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
diff --git a/core/src/main/scala/cats/instances/vector.scala b/core/src/main/scala/cats/instances/vector.scala
index 085a24ee51..fc80aa32b9 100644
--- a/core/src/main/scala/cats/instances/vector.scala
+++ b/core/src/main/scala/cats/instances/vector.scala
@@ -1,8 +1,29 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package instances
 
 import cats.data.{Chain, ZipVector}
-import cats.instances.instances.appendAll
+import cats.instances.StaticMethods.appendAll
 import cats.kernel.compat.scalaVersionSpecific._
 import cats.syntax.show._
 
diff --git a/core/src/main/scala/cats/package.scala b/core/src/main/scala/cats/package.scala
index 79c5c07101..b3754b8df7 100644
--- a/core/src/main/scala/cats/package.scala
+++ b/core/src/main/scala/cats/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 import scala.annotation.tailrec
 
 /**
diff --git a/core/src/main/scala/cats/syntax/DistributiveSyntax.scala b/core/src/main/scala/cats/syntax/DistributiveSyntax.scala
index a5ae364e38..b7125aea85 100644
--- a/core/src/main/scala/cats/syntax/DistributiveSyntax.scala
+++ b/core/src/main/scala/cats/syntax/DistributiveSyntax.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/TrySyntax.scala b/core/src/main/scala/cats/syntax/TrySyntax.scala
index 45e5d39e1f..1bb41065b9 100644
--- a/core/src/main/scala/cats/syntax/TrySyntax.scala
+++ b/core/src/main/scala/cats/syntax/TrySyntax.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/align.scala b/core/src/main/scala/cats/syntax/align.scala
index bd41650f42..932e8f2d6b 100644
--- a/core/src/main/scala/cats/syntax/align.scala
+++ b/core/src/main/scala/cats/syntax/align.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/all.scala b/core/src/main/scala/cats/syntax/all.scala
index 8331f8bb64..60d6d2b150 100644
--- a/core/src/main/scala/cats/syntax/all.scala
+++ b/core/src/main/scala/cats/syntax/all.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/alternative.scala b/core/src/main/scala/cats/syntax/alternative.scala
index 15306fba01..2282e7a079 100644
--- a/core/src/main/scala/cats/syntax/alternative.scala
+++ b/core/src/main/scala/cats/syntax/alternative.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/applicative.scala b/core/src/main/scala/cats/syntax/applicative.scala
index 4e2a271b02..f5c2c9a44a 100644
--- a/core/src/main/scala/cats/syntax/applicative.scala
+++ b/core/src/main/scala/cats/syntax/applicative.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/applicativeError.scala b/core/src/main/scala/cats/syntax/applicativeError.scala
index b799f16e08..ff12673bb6 100644
--- a/core/src/main/scala/cats/syntax/applicativeError.scala
+++ b/core/src/main/scala/cats/syntax/applicativeError.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/apply.scala b/core/src/main/scala/cats/syntax/apply.scala
index 3367e9c2b7..868647b5dc 100644
--- a/core/src/main/scala/cats/syntax/apply.scala
+++ b/core/src/main/scala/cats/syntax/apply.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/arrow.scala b/core/src/main/scala/cats/syntax/arrow.scala
index 4498e36d85..19006fc52a 100644
--- a/core/src/main/scala/cats/syntax/arrow.scala
+++ b/core/src/main/scala/cats/syntax/arrow.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/arrowChoice.scala b/core/src/main/scala/cats/syntax/arrowChoice.scala
index 16adb051e9..b9fffe2893 100644
--- a/core/src/main/scala/cats/syntax/arrowChoice.scala
+++ b/core/src/main/scala/cats/syntax/arrowChoice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/bifoldable.scala b/core/src/main/scala/cats/syntax/bifoldable.scala
index 09a8053df7..f74f220661 100644
--- a/core/src/main/scala/cats/syntax/bifoldable.scala
+++ b/core/src/main/scala/cats/syntax/bifoldable.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/bifunctor.scala b/core/src/main/scala/cats/syntax/bifunctor.scala
index 2daffa672e..1f2f9d4d4e 100644
--- a/core/src/main/scala/cats/syntax/bifunctor.scala
+++ b/core/src/main/scala/cats/syntax/bifunctor.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/binested.scala b/core/src/main/scala/cats/syntax/binested.scala
index 2963a59ba0..8905ba3e08 100644
--- a/core/src/main/scala/cats/syntax/binested.scala
+++ b/core/src/main/scala/cats/syntax/binested.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/bitraverse.scala b/core/src/main/scala/cats/syntax/bitraverse.scala
index b09661f267..6cf116c3eb 100644
--- a/core/src/main/scala/cats/syntax/bitraverse.scala
+++ b/core/src/main/scala/cats/syntax/bitraverse.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/choice.scala b/core/src/main/scala/cats/syntax/choice.scala
index ba2df99594..a143c621ea 100644
--- a/core/src/main/scala/cats/syntax/choice.scala
+++ b/core/src/main/scala/cats/syntax/choice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/coflatMap.scala b/core/src/main/scala/cats/syntax/coflatMap.scala
index 37d860ce1c..e271923eb8 100644
--- a/core/src/main/scala/cats/syntax/coflatMap.scala
+++ b/core/src/main/scala/cats/syntax/coflatMap.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/comonad.scala b/core/src/main/scala/cats/syntax/comonad.scala
index 1229e10dd1..ce133a6771 100644
--- a/core/src/main/scala/cats/syntax/comonad.scala
+++ b/core/src/main/scala/cats/syntax/comonad.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/compose.scala b/core/src/main/scala/cats/syntax/compose.scala
index 18649e7e85..f7f5c03652 100644
--- a/core/src/main/scala/cats/syntax/compose.scala
+++ b/core/src/main/scala/cats/syntax/compose.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/contravariant.scala b/core/src/main/scala/cats/syntax/contravariant.scala
index e721094822..819cd41d48 100644
--- a/core/src/main/scala/cats/syntax/contravariant.scala
+++ b/core/src/main/scala/cats/syntax/contravariant.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/contravariantMonoidal.scala b/core/src/main/scala/cats/syntax/contravariantMonoidal.scala
index 122f783065..0253d1c18a 100644
--- a/core/src/main/scala/cats/syntax/contravariantMonoidal.scala
+++ b/core/src/main/scala/cats/syntax/contravariantMonoidal.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/contravariantSemigroupal.scala b/core/src/main/scala/cats/syntax/contravariantSemigroupal.scala
index 0fc66f4999..688a279caa 100644
--- a/core/src/main/scala/cats/syntax/contravariantSemigroupal.scala
+++ b/core/src/main/scala/cats/syntax/contravariantSemigroupal.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/either.scala b/core/src/main/scala/cats/syntax/either.scala
index 495133f68c..1c4a97e8a4 100644
--- a/core/src/main/scala/cats/syntax/either.scala
+++ b/core/src/main/scala/cats/syntax/either.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/eitherK.scala b/core/src/main/scala/cats/syntax/eitherK.scala
index 0e0983cdda..17439f77ce 100644
--- a/core/src/main/scala/cats/syntax/eitherK.scala
+++ b/core/src/main/scala/cats/syntax/eitherK.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/eq.scala b/core/src/main/scala/cats/syntax/eq.scala
index 29f9c8f4ef..f6fa3fde5b 100644
--- a/core/src/main/scala/cats/syntax/eq.scala
+++ b/core/src/main/scala/cats/syntax/eq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/flatMap.scala b/core/src/main/scala/cats/syntax/flatMap.scala
index 93d1b94c58..ce758122a2 100644
--- a/core/src/main/scala/cats/syntax/flatMap.scala
+++ b/core/src/main/scala/cats/syntax/flatMap.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/foldable.scala b/core/src/main/scala/cats/syntax/foldable.scala
index 9bd3c351fa..de9f5a7ea9 100644
--- a/core/src/main/scala/cats/syntax/foldable.scala
+++ b/core/src/main/scala/cats/syntax/foldable.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/function1.scala b/core/src/main/scala/cats/syntax/function1.scala
index 7ec5ae0b1d..a4ab5f6619 100644
--- a/core/src/main/scala/cats/syntax/function1.scala
+++ b/core/src/main/scala/cats/syntax/function1.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/functor.scala b/core/src/main/scala/cats/syntax/functor.scala
index a88f984b48..41a9541471 100644
--- a/core/src/main/scala/cats/syntax/functor.scala
+++ b/core/src/main/scala/cats/syntax/functor.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/functorFilter.scala b/core/src/main/scala/cats/syntax/functorFilter.scala
index a80b6c2618..07290fed53 100644
--- a/core/src/main/scala/cats/syntax/functorFilter.scala
+++ b/core/src/main/scala/cats/syntax/functorFilter.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/group.scala b/core/src/main/scala/cats/syntax/group.scala
index f8214d42ea..6b9f75b33e 100644
--- a/core/src/main/scala/cats/syntax/group.scala
+++ b/core/src/main/scala/cats/syntax/group.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/hash.scala b/core/src/main/scala/cats/syntax/hash.scala
index ff2595f2d4..016650cce9 100644
--- a/core/src/main/scala/cats/syntax/hash.scala
+++ b/core/src/main/scala/cats/syntax/hash.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/invariant.scala b/core/src/main/scala/cats/syntax/invariant.scala
index 7ae1f32542..083274fe64 100644
--- a/core/src/main/scala/cats/syntax/invariant.scala
+++ b/core/src/main/scala/cats/syntax/invariant.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/ior.scala b/core/src/main/scala/cats/syntax/ior.scala
index 80a870341d..4a75ca5849 100644
--- a/core/src/main/scala/cats/syntax/ior.scala
+++ b/core/src/main/scala/cats/syntax/ior.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.syntax
 
 import cats.data.Ior
diff --git a/core/src/main/scala/cats/syntax/list.scala b/core/src/main/scala/cats/syntax/list.scala
index f1878ec29e..70bbbe3462 100644
--- a/core/src/main/scala/cats/syntax/list.scala
+++ b/core/src/main/scala/cats/syntax/list.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/monad.scala b/core/src/main/scala/cats/syntax/monad.scala
index 396d06b561..656c9bcb00 100644
--- a/core/src/main/scala/cats/syntax/monad.scala
+++ b/core/src/main/scala/cats/syntax/monad.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/monadError.scala b/core/src/main/scala/cats/syntax/monadError.scala
index fa75dff02f..a3a858995a 100644
--- a/core/src/main/scala/cats/syntax/monadError.scala
+++ b/core/src/main/scala/cats/syntax/monadError.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/monoid.scala b/core/src/main/scala/cats/syntax/monoid.scala
index 4d7c2b9d29..6080cbc088 100644
--- a/core/src/main/scala/cats/syntax/monoid.scala
+++ b/core/src/main/scala/cats/syntax/monoid.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/nested.scala b/core/src/main/scala/cats/syntax/nested.scala
index 9db2163d80..d5e138a96e 100644
--- a/core/src/main/scala/cats/syntax/nested.scala
+++ b/core/src/main/scala/cats/syntax/nested.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/nonEmptyAlternative.scala b/core/src/main/scala/cats/syntax/nonEmptyAlternative.scala
index 1f8d1bd669..ad5f830992 100644
--- a/core/src/main/scala/cats/syntax/nonEmptyAlternative.scala
+++ b/core/src/main/scala/cats/syntax/nonEmptyAlternative.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/nonEmptyTraverse.scala b/core/src/main/scala/cats/syntax/nonEmptyTraverse.scala
index 5c6fe63b36..6b84973bef 100644
--- a/core/src/main/scala/cats/syntax/nonEmptyTraverse.scala
+++ b/core/src/main/scala/cats/syntax/nonEmptyTraverse.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/option.scala b/core/src/main/scala/cats/syntax/option.scala
index 3550377fcc..c565b2b4ef 100644
--- a/core/src/main/scala/cats/syntax/option.scala
+++ b/core/src/main/scala/cats/syntax/option.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/order.scala b/core/src/main/scala/cats/syntax/order.scala
index f49ab378c3..e96110de68 100644
--- a/core/src/main/scala/cats/syntax/order.scala
+++ b/core/src/main/scala/cats/syntax/order.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/package.scala b/core/src/main/scala/cats/syntax/package.scala
index cecf597b69..46b743455f 100644
--- a/core/src/main/scala/cats/syntax/package.scala
+++ b/core/src/main/scala/cats/syntax/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 package object syntax {
diff --git a/core/src/main/scala/cats/syntax/parallel.scala b/core/src/main/scala/cats/syntax/parallel.scala
index 521a8826bd..8fa55c75f1 100644
--- a/core/src/main/scala/cats/syntax/parallel.scala
+++ b/core/src/main/scala/cats/syntax/parallel.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.syntax
 
 import cats.{
diff --git a/core/src/main/scala/cats/syntax/partialOrder.scala b/core/src/main/scala/cats/syntax/partialOrder.scala
index e4476c6296..45cbb8ca1e 100644
--- a/core/src/main/scala/cats/syntax/partialOrder.scala
+++ b/core/src/main/scala/cats/syntax/partialOrder.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/profunctor.scala b/core/src/main/scala/cats/syntax/profunctor.scala
index 3bc780f11d..75edd22b0b 100644
--- a/core/src/main/scala/cats/syntax/profunctor.scala
+++ b/core/src/main/scala/cats/syntax/profunctor.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/reducible.scala b/core/src/main/scala/cats/syntax/reducible.scala
index 415a723ee5..1e07ad776e 100644
--- a/core/src/main/scala/cats/syntax/reducible.scala
+++ b/core/src/main/scala/cats/syntax/reducible.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/representable.scala b/core/src/main/scala/cats/syntax/representable.scala
index 9920cb410b..486b94fb5f 100644
--- a/core/src/main/scala/cats/syntax/representable.scala
+++ b/core/src/main/scala/cats/syntax/representable.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/semigroup.scala b/core/src/main/scala/cats/syntax/semigroup.scala
index 7afd259086..fdc8fc1038 100644
--- a/core/src/main/scala/cats/syntax/semigroup.scala
+++ b/core/src/main/scala/cats/syntax/semigroup.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/semigroupal.scala b/core/src/main/scala/cats/syntax/semigroupal.scala
index 13786bb911..bd53dbd7e8 100644
--- a/core/src/main/scala/cats/syntax/semigroupal.scala
+++ b/core/src/main/scala/cats/syntax/semigroupal.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/semigroupk.scala b/core/src/main/scala/cats/syntax/semigroupk.scala
index 832501764a..696bbeb3e5 100644
--- a/core/src/main/scala/cats/syntax/semigroupk.scala
+++ b/core/src/main/scala/cats/syntax/semigroupk.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/seq.scala b/core/src/main/scala/cats/syntax/seq.scala
index e3601232c4..ef08518316 100644
--- a/core/src/main/scala/cats/syntax/seq.scala
+++ b/core/src/main/scala/cats/syntax/seq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.syntax
 
 import cats.data.NonEmptySeq
diff --git a/core/src/main/scala/cats/syntax/set.scala b/core/src/main/scala/cats/syntax/set.scala
index 2977d5f880..e0684648fc 100644
--- a/core/src/main/scala/cats/syntax/set.scala
+++ b/core/src/main/scala/cats/syntax/set.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.syntax
 
 import scala.collection.immutable.{SortedMap, SortedSet}
diff --git a/core/src/main/scala/cats/syntax/show.scala b/core/src/main/scala/cats/syntax/show.scala
index 45e94fe15d..85ffe0f11c 100644
--- a/core/src/main/scala/cats/syntax/show.scala
+++ b/core/src/main/scala/cats/syntax/show.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/strong.scala b/core/src/main/scala/cats/syntax/strong.scala
index 602d38334e..fd4f0fc02c 100644
--- a/core/src/main/scala/cats/syntax/strong.scala
+++ b/core/src/main/scala/cats/syntax/strong.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/traverse.scala b/core/src/main/scala/cats/syntax/traverse.scala
index 9205507f3b..f7bb69f5e3 100644
--- a/core/src/main/scala/cats/syntax/traverse.scala
+++ b/core/src/main/scala/cats/syntax/traverse.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/traverseFilter.scala b/core/src/main/scala/cats/syntax/traverseFilter.scala
index c3ff4b95c4..20fc6a170c 100644
--- a/core/src/main/scala/cats/syntax/traverseFilter.scala
+++ b/core/src/main/scala/cats/syntax/traverseFilter.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/unorderedFoldable.scala b/core/src/main/scala/cats/syntax/unorderedFoldable.scala
index 99f2ee1a3f..bd45d2cb9a 100644
--- a/core/src/main/scala/cats/syntax/unorderedFoldable.scala
+++ b/core/src/main/scala/cats/syntax/unorderedFoldable.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/unorderedTraverse.scala b/core/src/main/scala/cats/syntax/unorderedTraverse.scala
index 5d9349b790..382d3ac880 100644
--- a/core/src/main/scala/cats/syntax/unorderedTraverse.scala
+++ b/core/src/main/scala/cats/syntax/unorderedTraverse.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/validated.scala b/core/src/main/scala/cats/syntax/validated.scala
index 758818a36f..d356f2dd62 100644
--- a/core/src/main/scala/cats/syntax/validated.scala
+++ b/core/src/main/scala/cats/syntax/validated.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/core/src/main/scala/cats/syntax/vector.scala b/core/src/main/scala/cats/syntax/vector.scala
index 9185f29927..3b85185e92 100644
--- a/core/src/main/scala/cats/syntax/vector.scala
+++ b/core/src/main/scala/cats/syntax/vector.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.syntax
 
 import cats.data.NonEmptyVector
diff --git a/core/src/main/scala/cats/syntax/writer.scala b/core/src/main/scala/cats/syntax/writer.scala
index 1f7b055ff8..e6ad28a4c9 100644
--- a/core/src/main/scala/cats/syntax/writer.scala
+++ b/core/src/main/scala/cats/syntax/writer.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package syntax
 
diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
new file mode 120000
index 0000000000..44fcc63439
--- /dev/null
+++ b/docs/CONTRIBUTING.md
@@ -0,0 +1 @@
+../CONTRIBUTING.md
\ No newline at end of file
diff --git a/docs/src/main/mdoc/algebra.md b/docs/algebra.md
similarity index 99%
rename from docs/src/main/mdoc/algebra.md
rename to docs/algebra.md
index 9607cc7685..7b4a99bbc6 100644
--- a/docs/src/main/mdoc/algebra.md
+++ b/docs/algebra.md
@@ -1,8 +1,4 @@
----
-layout: docs
-title:  "Algebra Overview"
-section: "algebra"
----
+{% laika.title = Algebra %}
 
 # Algebra Overview
 
diff --git a/docs/src/main/mdoc/colophon.md b/docs/colophon.md
similarity index 89%
rename from docs/src/main/mdoc/colophon.md
rename to docs/colophon.md
index 851cd38c72..5cd6bd3de6 100644
--- a/docs/src/main/mdoc/colophon.md
+++ b/docs/colophon.md
@@ -1,9 +1,5 @@
----
-layout: page
-title:  "Colophon"
-section: "colophon"
-position: 60
----
+# Colophon
+
 Cats has been made a much better project, and is a much more enjoyable
 project to work on because of many of the other projects on which Cats
 is built. Many of these projects have had enhancements made in order
@@ -26,4 +22,4 @@ There are other libraries that aim to foster Functional Programming in the Scala
 nature to Cats, also derived from scalaz. The Structures and Cats
 projects have had a healthy relationship of sharing both ideas and code.
 
-For a full list of Cats and Typelevel related projects and libraries, take a look at [The Typelevel Ecosystem](https://typelevel.org/cats/typelevelEcosystem.html)
+For a full list of Cats and Typelevel related projects and libraries, take a look at [The Typelevel Ecosystem](typelevelEcosystem.md)
diff --git a/docs/datatypes.md b/docs/datatypes.md
new file mode 100644
index 0000000000..b151b8ebe5
--- /dev/null
+++ b/docs/datatypes.md
@@ -0,0 +1,5 @@
+{% laika.title = "Data Types" %}
+
+@:navigationTree {
+  entries = [ { target = "datatypes", depth = 2 } ]
+}
diff --git a/docs/src/main/mdoc/datatypes/chain.md b/docs/datatypes/chain.md
similarity index 98%
rename from docs/src/main/mdoc/datatypes/chain.md
rename to docs/datatypes/chain.md
index d7a5e98f73..97f046fba9 100644
--- a/docs/src/main/mdoc/datatypes/chain.md
+++ b/docs/datatypes/chain.md
@@ -1,11 +1,3 @@
----
-layout: docs
-title:  "Chain"
-section: "data"
-source: "core/src/main/scala/cats/data/Chain.scala"
-scaladoc: "#cats.data.Chain"
----
-
 # Chain
 
 `Chain` is a data structure that allows constant time prepending and appending.
diff --git a/docs/src/main/mdoc/datatypes/const.md b/docs/datatypes/const.md
similarity index 98%
rename from docs/src/main/mdoc/datatypes/const.md
rename to docs/datatypes/const.md
index 181edd9d11..3f35826543 100644
--- a/docs/src/main/mdoc/datatypes/const.md
+++ b/docs/datatypes/const.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Const"
-section: "data"
-source: "core/src/main/scala/cats/data/Const.scala"
-scaladoc: "#cats.data.Const"
----
 # Const
 At first glance `Const` seems like a strange data type - it has two type parameters, yet only
 stores a value of the first type. What possible use is it? As it turns out, it does
diff --git a/docs/src/main/mdoc/datatypes/contt.md b/docs/datatypes/contt.md
similarity index 97%
rename from docs/src/main/mdoc/datatypes/contt.md
rename to docs/datatypes/contt.md
index 3253e8972b..8a4a9e56e7 100644
--- a/docs/src/main/mdoc/datatypes/contt.md
+++ b/docs/datatypes/contt.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "ContT"
-section: "data"
-source: "core/src/main/scala/cats/data/ContT.scala"
-scaladoc: "#cats.data.ContT"
----
 # ContT
 
 A pattern that appears sometimes in functional programming is that of a function
@@ -35,7 +28,7 @@ def updateUser(persistToDatabase: User => Eval[UserUpdateResult])
 ```
 
 (Note: We will be using `Eval` throughout the examples on this page. If you are not
-familiar with `Eval`, it's worth reading [the Eval documentation](eval.html) first.)
+familiar with `Eval`, it's worth reading [the Eval documentation](eval.md) first.)
 
 Our `updateUser` function takes in an existing user and some updates to perform.
 It sanitises the inputs and updates the user model, but it delegates the
diff --git a/docs/datatypes/directory.conf b/docs/datatypes/directory.conf
new file mode 100644
index 0000000000..50ee2bc130
--- /dev/null
+++ b/docs/datatypes/directory.conf
@@ -0,0 +1,24 @@
+laika.title = Data Types
+laika.navigationOrder = [
+  chain.md
+  const.md
+  contt.md
+  either.md
+  eithert.md
+  eval.md
+  freeapplicative.md
+  freemonad.md
+  functionk.md
+  id.md
+  ior.md
+  iort.md
+  kleisli.md
+  nel.md
+  nested.md
+  oneand.md
+  optiont.md
+  state.md
+  validated.md
+  writer.md
+  writert.md
+]
\ No newline at end of file
diff --git a/docs/src/main/mdoc/datatypes/either.md b/docs/datatypes/either.md
similarity index 98%
rename from docs/src/main/mdoc/datatypes/either.md
rename to docs/datatypes/either.md
index efafca0cce..c7667cb169 100644
--- a/docs/src/main/mdoc/datatypes/either.md
+++ b/docs/datatypes/either.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Either"
-section: "data"
-source: "core/src/main/scala/cats/syntax/either.scala"
-scaladoc: "#cats.syntax.EitherOps"
----
 # Either
 
 In day-to-day programming, it is fairly common to find ourselves writing functions that
@@ -39,7 +32,7 @@ How then do we communicate an error? By making it explicit in the data type we r
 
 ### `Either` vs `Validated`
 
-In general, `Validated` is used to accumulate errors, while `Either` is used to short-circuit a computation upon the first error. For more information, see the `Validated` vs `Either` section of the [`Validated` documentation]({{ site.baseurl }}/datatypes/validated.html).
+In general, `Validated` is used to accumulate errors, while `Either` is used to short-circuit a computation upon the first error. For more information, see the `Validated` vs `Either` section of the [`Validated` documentation](validated.md).
 
 ### Syntax
 
diff --git a/docs/src/main/mdoc/datatypes/eithert.md b/docs/datatypes/eithert.md
similarity index 97%
rename from docs/src/main/mdoc/datatypes/eithert.md
rename to docs/datatypes/eithert.md
index 606c90a6a0..9cb2437d26 100644
--- a/docs/src/main/mdoc/datatypes/eithert.md
+++ b/docs/datatypes/eithert.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "EitherT"
-section: "data"
-source: "core/src/main/scala/cats/data/EitherT.scala"
-scaladoc: "#cats.data.EitherT"
----
 # EitherT
 
 `Either` can be used for error handling in most situations. However, when
diff --git a/docs/src/main/mdoc/datatypes/eval.md b/docs/datatypes/eval.md
similarity index 94%
rename from docs/src/main/mdoc/datatypes/eval.md
rename to docs/datatypes/eval.md
index 63f5431aca..d7364b12c4 100644
--- a/docs/src/main/mdoc/datatypes/eval.md
+++ b/docs/datatypes/eval.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Eval"
-section: "data"
-source: "core/src/main/scala/cats/Eval.scala"
-scaladoc: "#cats.Eval"
----
 # Eval
 
 Eval is a data type for controlling synchronous evaluation.
@@ -86,7 +79,7 @@ Here we can see, that the expression is evaluated every time we call `.value`.
 ### Chaining lazy computations
 
 One of the most useful applications of `Eval` is its ability to chain together computations in a stack-safe way.
-You can see one such usage when looking at the `foldRight` method found in [`Foldable`](../typeclasses/foldable.html).
+You can see one such usage when looking at the `foldRight` method found in [`Foldable`](../typeclasses/foldable.md).
 Another great example are mutual tail-recursive calls:
 
 ```scala mdoc
diff --git a/docs/src/main/mdoc/datatypes/freeapplicative.md b/docs/datatypes/freeapplicative.md
similarity index 98%
rename from docs/src/main/mdoc/datatypes/freeapplicative.md
rename to docs/datatypes/freeapplicative.md
index 9d9082e18c..01b7fc4e98 100644
--- a/docs/src/main/mdoc/datatypes/freeapplicative.md
+++ b/docs/datatypes/freeapplicative.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "FreeApplicatives"
-section: "data"
-source: "free/src/main/scala/cats/free/FreeApplicative.scala"
-scaladoc: "#cats.free.FreeApplicative"
----
 # Free Applicative
 
 `FreeApplicative`s are similar to `Free` (monads) in that they provide a nice way to represent
diff --git a/docs/src/main/mdoc/datatypes/freemonad.md b/docs/datatypes/freemonad.md
similarity index 98%
rename from docs/src/main/mdoc/datatypes/freemonad.md
rename to docs/datatypes/freemonad.md
index 9430583d76..ad436ba688 100644
--- a/docs/src/main/mdoc/datatypes/freemonad.md
+++ b/docs/datatypes/freemonad.md
@@ -1,11 +1,3 @@
----
-layout: docs
-title:  "FreeMonads"
-section: "data"
-source: "free/src/main/scala/cats/free/Free.scala"
-scaladoc: "#cats.free.Free"
----
-
 # Free Monad
 
 ## What is it?
@@ -33,7 +25,7 @@ action. The next section uses `Free[_]` to create an embedded DSL
 (Domain Specific Language).
 
 If you're interested in the theory behind *free monads*, the
-[What is Free in theory?](#what-is-free-in-theory) section discusses free monads
+[What is Free in theory?](#for-the-curious-ones-what-is-free-in-theory) section discusses free monads
 in terms of category theory.
 
 ### Study your topic
@@ -269,7 +261,7 @@ data-intensive tasks, as well as infinite processes such as streams.
 
 The previous examples used an effectful natural transformation. This
 works, but you might prefer folding your `Free` in a "purer" way. The
-[State](state.html) data structure can be used to keep track of the program
+[State](state.md) data structure can be used to keep track of the program
 state in an immutable map, avoiding mutation altogether.
 
 ```scala mdoc:silent
@@ -407,7 +399,7 @@ import DataSource._, Interacts._
 val evaled: Unit = program.foldMap(interpreter)
 ```
 
-## <a name="what-is-free-in-theory"></a>For the curious ones: what is Free in theory?
+## For the curious ones: what is Free in theory?
 
 Mathematically-speaking, a *free monad* (at least in the programming
 language context) is a construction that is left adjoint to a
diff --git a/docs/src/main/mdoc/datatypes/functionk.md b/docs/datatypes/functionk.md
similarity index 95%
rename from docs/src/main/mdoc/datatypes/functionk.md
rename to docs/datatypes/functionk.md
index a8cbace8ce..082eb04bc0 100644
--- a/docs/src/main/mdoc/datatypes/functionk.md
+++ b/docs/datatypes/functionk.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "FunctionK"
-section: "data"
-source: "core/src/main/scala/cats/arrow/FunctionK.scala"
-scaladoc: "#cats.arrow.FunctionK"
----
 # FunctionK
 A `FunctionK` transforms values from one first-order-kinded type (a type that takes a single type
 parameter, such as `List` or `Option`) into another first-order-kinded type. This transformation is
@@ -109,7 +102,7 @@ Being able to use `~>` as an alias for `FunctionK` parallels being able to use `
 
 ## Use-cases
 
-`FunctionK` tends to show up when there is abstraction over higher-kinds. For example, interpreters for [free monads](freemonad.html) and [free applicatives](freeapplicative.html) are represented as `FunctionK` instances.
+`FunctionK` tends to show up when there is abstraction over higher-kinds. For example, interpreters for [free monads](freemonad.md) and [free applicatives](freeapplicative.md) are represented as `FunctionK` instances.
 
 ## Types with more than one type parameter
 
diff --git a/docs/src/main/mdoc/datatypes/id.md b/docs/datatypes/id.md
similarity index 87%
rename from docs/src/main/mdoc/datatypes/id.md
rename to docs/datatypes/id.md
index 37c9c1c58a..113e9cd7c5 100644
--- a/docs/src/main/mdoc/datatypes/id.md
+++ b/docs/datatypes/id.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Id"
-section: "data"
-source: "core/src/main/scala/cats/package.scala"
-scaladoc: "#cats.Id$"
----
 # Id
 
 The identity monad can be seen as the ambient monad that encodes the
@@ -29,7 +22,7 @@ val y: Int = x
 ```
 
 Using this type declaration, we can treat our Id type constructor as a
-[`Monad`](../typeclasses/monad.html) and as a [`Comonad`](../typeclasses/comonad.html). The `pure`
+[`Monad`](../typeclasses/monad.md) and as a [`Comonad`](../typeclasses/comonad.md). The `pure`
 method, which has type `A => Id[A]` just becomes the identity
 function.  The `map` method from `Functor` just becomes function
 application:
diff --git a/docs/src/main/mdoc/datatypes/ior.md b/docs/datatypes/ior.md
similarity index 88%
rename from docs/src/main/mdoc/datatypes/ior.md
rename to docs/datatypes/ior.md
index e8ae82b15e..96c7632a9f 100644
--- a/docs/src/main/mdoc/datatypes/ior.md
+++ b/docs/datatypes/ior.md
@@ -1,14 +1,7 @@
----
-layout: docs
-title:  "Ior"
-section: "data"
-source: "core/src/main/scala/cats/data/Ior.scala"
-scaladoc: "#cats.data.Ior"
----
 # Ior
 
 `Ior` represents an inclusive-or relationship between two data types.
-This makes it very similar to the [`Either`](either.html) data type, which represents an "exclusive-or" relationship.
+This makes it very similar to the [`Either`](either.md) data type, which represents an "exclusive-or" relationship.
 What this means, is that an `Ior[A, B]` (also written as `A Ior B`) can contain either an `A`, a `B`, or both an `A` and `B`.
 Another similarity to `Either` is that `Ior` is right-biased,
 which means that the `map` and `flatMap` functions will work on the right side of the `Ior`, in our case the `B` value.
@@ -42,7 +35,7 @@ val left = "Error".leftIor
 
 
 When we look at the `Monad` or `Applicative` instances of `Ior`, we can see that they actually requires a `Semigroup` instance on the left side.
-This is because `Ior` will actually accumulate failures on the left side, very similar to how the [`Validated`](validated.html) data type does.
+This is because `Ior` will actually accumulate failures on the left side, very similar to how the [`Validated`](validated.md) data type does.
 This means we can accumulate data on the left side while also being able to short-circuit upon the first left-side-only value.
 For example, sometimes, we might want to accumulate warnings together with a valid result and only halt the computation on a "hard error"
 Here's an example of how we might be able to do that:
@@ -105,7 +98,7 @@ validateUser("john.doe", "password").fold(
 )
 
 ```
-Similar to [Validated](validated.html), there is also a type alias for using a `NonEmptyChain` on the left side.
+Similar to [Validated](validated.md), there is also a type alias for using a `NonEmptyChain` on the left side.
 
 ```scala mdoc:silent
 import cats.data.NonEmptyChain
diff --git a/docs/src/main/mdoc/datatypes/iort.md b/docs/datatypes/iort.md
similarity index 98%
rename from docs/src/main/mdoc/datatypes/iort.md
rename to docs/datatypes/iort.md
index e72af38fe3..4f0554b5a7 100644
--- a/docs/src/main/mdoc/datatypes/iort.md
+++ b/docs/datatypes/iort.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "IorT"
-section: "data"
-source: "core/src/main/scala/cats/data/IorT.scala"
-scaladoc: "#cats.data.IorT"
----
 # IorT
 
 `IorT[F[_], A, B]` is a light wrapper on an `F[Ior[A, B]]`. Similar to
diff --git a/docs/src/main/mdoc/datatypes/kleisli.md b/docs/datatypes/kleisli.md
similarity index 98%
rename from docs/src/main/mdoc/datatypes/kleisli.md
rename to docs/datatypes/kleisli.md
index e44420cddf..caac96c233 100644
--- a/docs/src/main/mdoc/datatypes/kleisli.md
+++ b/docs/datatypes/kleisli.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Kleisli"
-section: "data"
-source: "core/src/main/scala/cats/data/Kleisli.scala"
-scaladoc: "#cats.data.Kleisli"
----
 # Kleisli
 Kleisli enables composition of functions that return a monadic value, for instance an `Option[Int]` 
 or a `Either[String, List[Double]]`, without having functions take an `Option` or `Either` as a parameter, 
diff --git a/docs/src/main/mdoc/datatypes/nel.md b/docs/datatypes/nel.md
similarity index 95%
rename from docs/src/main/mdoc/datatypes/nel.md
rename to docs/datatypes/nel.md
index 1876254d92..2c40fc74b1 100644
--- a/docs/src/main/mdoc/datatypes/nel.md
+++ b/docs/datatypes/nel.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "NonEmptyList"
-section: "data"
-source: "core/src/main/scala/cats/data/NonEmptyList.scala"
-scaladoc: "#cats.data.NonEmptyList"
----
 # NonEmptyList
 
 ## Motivation
@@ -14,7 +7,7 @@ We start with two examples of `NonEmptyList`s
 ### Usage in `Validated` and `Ior`
 
 If you have had the opportunity of taking a look to
-[Validated](validated.html) or [Ior](ior.html), you'll find that a
+[Validated](validated.md) or [Ior](ior.md), you'll find that a
 common case is to use `NonEmptyList` with one of these data
 structures.
 
diff --git a/docs/src/main/mdoc/datatypes/nested.md b/docs/datatypes/nested.md
similarity index 95%
rename from docs/src/main/mdoc/datatypes/nested.md
rename to docs/datatypes/nested.md
index 3d801740f5..5adfc8802b 100644
--- a/docs/src/main/mdoc/datatypes/nested.md
+++ b/docs/datatypes/nested.md
@@ -1,10 +1,4 @@
----
-layout: docs
-title:  "Nested"
-section: "data"
-source: "core/src/main/scala/cats/data/Nested.scala"
-scaladoc: "#cats.data.Nested"
----
+{% laika.title = Nested %}
 
 # Motivation
 
diff --git a/docs/src/main/mdoc/datatypes/oneand.md b/docs/datatypes/oneand.md
similarity index 84%
rename from docs/src/main/mdoc/datatypes/oneand.md
rename to docs/datatypes/oneand.md
index 0f67ce7c46..9c4dbdc0a2 100644
--- a/docs/src/main/mdoc/datatypes/oneand.md
+++ b/docs/datatypes/oneand.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "OneAnd"
-section: "data"
-source: "core/src/main/scala/cats/data/OneAnd.scala"
-scaladoc: "#cats.data.OneAnd"
----
 # OneAnd
 
 The `OneAnd[F[_],A]` data type represents a single element of type `A`
diff --git a/docs/src/main/mdoc/datatypes/optiont.md b/docs/datatypes/optiont.md
similarity index 91%
rename from docs/src/main/mdoc/datatypes/optiont.md
rename to docs/datatypes/optiont.md
index 82d0cd36da..cae49f90ee 100644
--- a/docs/src/main/mdoc/datatypes/optiont.md
+++ b/docs/datatypes/optiont.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "OptionT"
-section: "data"
-source: "core/src/main/scala/cats/data/OptionT.scala"
-scaladoc: "#cats.data.OptionT"
----
 # OptionT
 
 `OptionT[F[_], A]` is a light wrapper on an `F[Option[A]]`. Speaking technically, it is a monad transformer for `Option`, but you don't need to know what that means for it to be useful. `OptionT` can be more convenient to work with than using `F[Option[A]]` directly.
@@ -74,7 +67,7 @@ val result: Future[Option[String]] = ot.value // Future(Some("Hello Jane Doe"))
 
 ## From `A` to `OptionT[F,A]`
 
-If you have only an `A` and you wish to *lift* it into an `OptionT[F,A]` assuming you have an [`Applicative`]({{ site.baseurl }}/typeclasses/applicative.html) instance for `F` you can use `some` which is an alias for `pure`. There also exists a `none` method which can be used to create an `OptionT[F,A]`, where the `Option` wrapped `A` type is actually a `None`:
+If you have only an `A` and you wish to *lift* it into an `OptionT[F,A]` assuming you have an [`Applicative`]({{ site.baseurl }}/typeclasses/applicative.md) instance for `F` you can use `some` which is an alias for `pure`. There also exists a `none` method which can be used to create an `OptionT[F,A]`, where the `Option` wrapped `A` type is actually a `None`:
 
 ```scala mdoc:silent
 val greet: OptionT[Future,String] = OptionT.pure("Hola!")
diff --git a/docs/src/main/mdoc/datatypes/state.md b/docs/datatypes/state.md
similarity index 98%
rename from docs/src/main/mdoc/datatypes/state.md
rename to docs/datatypes/state.md
index baca8fff7c..59710a91cb 100644
--- a/docs/src/main/mdoc/datatypes/state.md
+++ b/docs/datatypes/state.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "State"
-section: "data"
-source: "core/src/main/scala/cats/data/StateT.scala"
-scaladoc: "#cats.data.StateT"
----
 # State
 
 `State` is a structure that provides a functional approach to handling application state. `State[S, A]` is basically a function `S => (S, A)`, where `S` is the type that represents your state and `A` is the result the function produces. In addition to returning the result of type `A`, the function returns a new `S` value, which is the updated state.
diff --git a/docs/src/main/mdoc/datatypes/validated.md b/docs/datatypes/validated.md
similarity index 97%
rename from docs/src/main/mdoc/datatypes/validated.md
rename to docs/datatypes/validated.md
index 4f78b4fc0b..c4a496f08d 100644
--- a/docs/src/main/mdoc/datatypes/validated.md
+++ b/docs/datatypes/validated.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Validated"
-section: "data"
-source: "core/src/main/scala/cats/data/Validated.scala"
-scaladoc: "#cats.data.Validated"
----
 # Validated
 
 Imagine you are filling out a web form to signup for an account. You input your username and password and submit.
@@ -203,7 +196,7 @@ This datatype, as with `Either` has two projections: `Valid` and `Invalid`, anal
 
 Remember that our goal is to get all the validation errors for displaying it to the user, but you'll find that this approach won't compile, as you can see in the previous snippet. Why?
 
-Without diving into details about monads, a for-comprehension uses the `flatMap` method for composition. Monads like `Either` can be composed in that way, but the thing with `Validated` is that it isn't a monad, but an [_Applicative Functor_](../typeclasses/applicativetraverse.html).
+Without diving into details about monads, a for-comprehension uses the `flatMap` method for composition. Monads like `Either` can be composed in that way, but the thing with `Validated` is that it isn't a monad, but an [_Applicative Functor_](../typeclasses/applicativetraverse.md).
 That's why you see the message: `error: value flatMap is not a member of cats.data.Validated[DomainValidation,String]`.
 
 So, how do we do here?
@@ -252,7 +245,7 @@ Let's see what changed here:
 2. `ValidatedNec[DomainValidation, A]` is an alias for `Validated[NonEmptyChain[DomainValidation], A]`. When you use `ValidatedNec` you're stating that your accumulative structure will be a `NonEmptyChain`. With `Validated`, you have the choice about which data structure you want for reporting the errors (more on that soon).
 3. We've declared the type alias `ValidationResult` that conveniently expresses the return type of our validation.
 4. `.validNec` and `.invalidNec` combinators lets you _lift_ the success or failure in their respective container (either a `Valid` or `Invalid[NonEmptyChain[A]]`).
-5. The [applicative](../typeclasses/applicative.html) syntax `(a, b, c, ...).mapN(...)` provides us a way to accumulatively apply the validation functions and yield a product with their successful result or the accumulated errors in the `NonEmptyChain`. Then, we transform that product with `mapN` into a valid instance of `RegistrationData`.
+5. The [applicative](../typeclasses/applicative.md) syntax `(a, b, c, ...).mapN(...)` provides us a way to accumulatively apply the validation functions and yield a product with their successful result or the accumulated errors in the `NonEmptyChain`. Then, we transform that product with `mapN` into a valid instance of `RegistrationData`.
 
 **Deprecation notice:** since Cats `1.0.0-MF` the cartesian syntax `|@|` for applicatives is deprecated. If you're using `0.9.0` or less, you can use the syntax: `(a |@| b |@| ...).map(...)`.
 
@@ -284,7 +277,7 @@ Sweet success! Now you can take your validation process to the next level!
 
 As previously stated, `ValidatedNec[DomainValidation, A]` is an alias for `Validated[NonEmptyChain[DomainValidation], A]`. Typically, you'll see that `Validated` is accompanied by a `NonEmptyChain` when it comes to accumulation. The thing here is that you can define your own accumulative data structure and you're not limited to the aforementioned construction.
 
-For doing this, you have to provide a `Semigroup` instance. `NonEmptyChain`, by definition has its own `Semigroup`. For those who don't know what a `Semigroup` is, you can find out more [here](../typeclasses/semigroup.html).
+For doing this, you have to provide a `Semigroup` instance. `NonEmptyChain`, by definition has its own `Semigroup`. For those who don't know what a `Semigroup` is, you can find out more [here](../typeclasses/semigroup.md).
 
 #### Accumulative Structures
 
diff --git a/docs/src/main/mdoc/datatypes/writer.md b/docs/datatypes/writer.md
similarity index 81%
rename from docs/src/main/mdoc/datatypes/writer.md
rename to docs/datatypes/writer.md
index b935058223..273ed21bee 100644
--- a/docs/src/main/mdoc/datatypes/writer.md
+++ b/docs/datatypes/writer.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Writer"
-section: "data"
-source: "core/src/main/scala/cats/data/package.scala"
-scaladoc: "#cats.data.Writer"
----
 # Writer
 
 The `Writer[L, A]` datatype represents a computation that produces a
@@ -22,16 +15,16 @@ multiple ways. See the [Operations section](#operations)
 
 When two functions are composed together, e.g. using `flatMap`, the logs
   of both functions will be combined using an implicit
-  [Semigroup](https://typelevel.org/cats/typeclasses/semigroup.html).
+  [Semigroup](../typeclasses/semigroup.md).
 
 ## Operations
 
 The `Writer` datatype provides a set of functions that are similar to
 the ones from the
-[Monad](https://typelevel.org/cats/typeclasses/monad.html)
+[Monad](../typeclasses/monad.md)
 typeclass. In fact, they share the same name and the same signature,
 but have an additional requirement of a
-[`Semigroup[L]`](https://typelevel.org/cats/typeclasses/semigroup.html)
+[`Semigroup[L]`](../typeclasses/semigroup.md)
 that allows the log merging.
 
 `map` effects only the value, keeping the log side untouched. Plus, here we show `run`
@@ -48,7 +41,7 @@ mapExample.run
 
 `ap` allows applying a function, wrapped into a Writer. It works
 exactly like the `Applicative` as expected, but notice how the logs
-are combined using the [`Semigroup[String]`](https://typelevel.org/cats/typeclasses/semigroup.html).
+are combined using the [`Semigroup[String]`](../typeclasses/semigroup.md).
 
 ```scala mdoc
 val apExampleValue = Writer("ap value", 10)
@@ -78,13 +71,13 @@ Apart from those, `Writer` comes with some specific functions to manage
 the log side of the computation:
 
 `tell`
-:  Append a value to the log side. It requires a [`Semigroup[L]`](https://typelevel.org/cats/typeclasses/semigroup.html).
+:  Append a value to the log side. It requires a [`Semigroup[L]`](../typeclasses/semigroup.md).
 
 `swap`
 :  Exchange the two values of the `Writer`.
 
 `reset`
-:  Delete the log side. It requires a [`Monoid[L]`](https://typelevel.org/cats/typeclasses/monoid.html) since it uses the `empty` value of the monoid.
+:  Delete the log side. It requires a [`Monoid[L]`](../typeclasses/monoid.md) since it uses the `empty` value of the monoid.
 
 `value`
 :  Returns only the value of the `Writer`
@@ -130,13 +123,13 @@ type Writer[L, V] = WriterT[Id, L, V]
 
 So, all the [Operations](#operations) defined in the previous section
 are actually coming from the [WriterT
-datatype](https://typelevel.org/cats/datatypes/writert.html)
+datatype](writert.md)
 
-Most of the [`WriterT`](https://typelevel.org/cats/datatypes/writert.html) functions require a
-[`Functor[F]`](https://typelevel.org/cats/typeclasses/functor.html) or
-[`Monad[F]`](https://typelevel.org/cats/typeclasses/monad.html)
+Most of the [`WriterT`](writert.md) functions require a
+[`Functor[F]`](../typeclasses/functor.md) or
+[`Monad[F]`](../typeclasses/monad.md)
 instance. However, Cats provides all the necessary instances for the
-[`Id`](https://typelevel.org/cats/datatypes/id.html) type, therefore
+[`Id`](id.md) type, therefore
 we don't have to worry about them.
 
 ## Example
diff --git a/docs/src/main/mdoc/datatypes/writert.md b/docs/datatypes/writert.md
similarity index 79%
rename from docs/src/main/mdoc/datatypes/writert.md
rename to docs/datatypes/writert.md
index da46e82c71..4275b23da1 100644
--- a/docs/src/main/mdoc/datatypes/writert.md
+++ b/docs/datatypes/writert.md
@@ -1,14 +1,7 @@
----
-layout: docs
-title:  "WriterT"
-section: "data"
-source: "core/src/main/scala/cats/data/WriterT.scala"
-scaladoc: "#cats.data.WriterT"
----
 # WriterT
 
 `WriterT[F[_], L, V]` is a type wrapper on an `F[(L,
-V)]`. Speaking technically, it is a monad transformer for [`Writer`](https://typelevel.org/cats/datatypes/writer.html),
+V)]`. Speaking technically, it is a monad transformer for [`Writer`](writer.md),
 but you don't need to know what that means for it to be
 useful.
 
@@ -16,8 +9,8 @@ useful.
 
 `WriterT` can be more convenient to work with than using
 `F[Writer[L, V]]` directly, because it exposes operations that allow
-you to work with the values of the inner [`Writer`](https://typelevel.org/cats/datatypes/writer.html) (`L` and
-`V`) abstracting both the `F` and [`Writer`](https://typelevel.org/cats/datatypes/writer.html).
+you to work with the values of the inner [`Writer`](writer.md) (`L` and
+`V`) abstracting both the `F` and [`Writer`](writer.md).
 
 For example, `map` allow you to transform the inner `V` value, getting
 back a `WriterT` that wraps around it.
@@ -30,13 +23,13 @@ WriterT[Option, String, Int](Some(("value", 10))).map(x => x * x)
 
 Plus, when composing multiple `WriterT` computations, those will be
 composed following the same behaviour of a
-[`Writer`](https://typelevel.org/cats/datatypes/writer.html) and the
-generic `F`.  Let's see two examples with `Option` and [`Either`](https://typelevel.org/cats/datatypes/either.html): if
+[`Writer`](writer.md) and the
+generic `F`.  Let's see two examples with `Option` and [`Either`](either.md): if
 one of the computations has a `None` or a `Left`, the whole
 computation will return a `None` or a `Left` since the way the two
 types compose typically behaves that way. Moreover, when the
 computation succeed, the logging side of the
-[`Writer`](https://typelevel.org/cats/datatypes/writer.html)s will be
+[`Writer`](writer.md)s will be
 combined.
 
 ```scala mdoc:silent
@@ -80,18 +73,18 @@ for {
 
 Just for completeness, we can have a look at the same example, but
 with
-[`Validated`](https://typelevel.org/cats/datatypes/validated.html)
+[`Validated`](validated.md)
 since it as a slightly different behaviour than
-[`Either`](https://typelevel.org/cats/datatypes/either.html). Instead
+[`Either`](either.md). Instead
 of short-circuiting when the first error is encountered,
-[`Validated`](https://typelevel.org/cats/datatypes/validated.html)
+[`Validated`](validated.md)
 will accumulate all the errors. In the following example, you can see
 how this behaviour is respected when
-[`Validated`](https://typelevel.org/cats/datatypes/validated.html) is
+[`Validated`](validated.md) is
 wrapped as the `F` type of a `WriterT`. In addition, notice
 how `flatMap` and for comprehension can't be used in this case, since
-[`Validated`](https://typelevel.org/cats/datatypes/validated.html)
-only extends [`Applicative`](https://typelevel.org/cats/typeclasses/applicative.html), but not [`Monad`](https://typelevel.org/cats/typeclasses/monad.html).
+[`Validated`](validated.md)
+only extends [`Applicative`](../typeclasses/applicative.md), but not [`Monad`](../typeclasses/monad.md).
 
 ```scala mdoc:silent
 import cats.data.Validated
@@ -138,9 +131,9 @@ type starting from the full wrapped value.
 `liftF[F[_], L, V](fv: F[V])(implicit monoidL: Monoid[L], F: Applicative[F]): WriterT[F, L, V]`
 :  This function allows you to build the datatype starting from the
 value `V` wrapped into an `F`. Notice how it requires:
-* [`Monoid[L]`](https://typelevel.org/cats/typeclasses/monoid.html), since it uses the `empty` value from the typeclass.
+* [`Monoid[L]`](../typeclasses/monoid.md), since it uses the `empty` value from the typeclass.
 to fill the `L` value not specified in the input.
-* [`Applicative[F]`](https://typelevel.org/cats/typeclasses/applicative.html) to modify the inner value.
+* [`Applicative[F]`](../typeclasses/applicative.md) to modify the inner value.
 
 ```scala mdoc:nest
   import cats.instances.option._
@@ -151,8 +144,8 @@ to fill the `L` value not specified in the input.
 ```
 
 `put[F[_], L, V](v: V)(l: L)(implicit applicativeF: Applicative[F]): WriterT[F, L, V]`
-:  As soon as there is an [`Applicative`](https://typelevel.org/cats/typeclasses/applicative.html) instance of `F`, this function
-creates the datatype starting from the inner [`Writer`](https://typelevel.org/cats/datatypes/writer.html)'s values.
+:  As soon as there is an [`Applicative`](../typeclasses/applicative.md) instance of `F`, this function
+creates the datatype starting from the inner [`Writer`](writer.md)'s values.
 
 ```scala mdoc:nest
   WriterT.put[Option, String, Int](123)("initial value")
@@ -168,14 +161,14 @@ creates the datatype starting from the inner [`Writer`](https://typelevel.org/ca
 ## Operations
 
 In the [Writer
-definition](https://typelevel.org/cats/datatypes/writer.html#definition)
+definition](writer.md#definition)
 section, we showed how it is actually a `WriterT`. Therefore, all the
 operations described into [Writer
-operations](https://typelevel.org/cats/datatypes/writer.html#operations)
+operations](writer.md#operations)
 are valid for `WriterT` as well.
 
 The only aspect we want to remark here is the following sentence from
-[`Writer`](https://typelevel.org/cats/datatypes/writer.html)'s page:
+[`Writer`](writer.md)'s page:
 
 > Most of the `WriterT` functions require a `Functor[F]` or
 > `Monad[F]` instance. However, Cats provides all the necessary
diff --git a/docs/directory.conf b/docs/directory.conf
new file mode 100644
index 0000000000..eee89b52ca
--- /dev/null
+++ b/docs/directory.conf
@@ -0,0 +1,18 @@
+laika.navigationOrder = [
+  index.md
+  typeclasses.md
+  datatypes.md
+  algebra.md
+  motivations.md
+  resources_for_learners.md
+  jump_start_guide.md
+  imports.md
+  faq.md
+  CONTRIBUTING.md
+  colophon.md
+  nomenclature.md
+  guidelines.md
+  typelevelEcosystem.md
+  typeclasses
+  datatypes
+]
\ No newline at end of file
diff --git a/docs/src/main/mdoc/faq.md b/docs/faq.md
similarity index 77%
rename from docs/src/main/mdoc/faq.md
rename to docs/faq.md
index 495bba0c1c..52f6cc53af 100644
--- a/docs/src/main/mdoc/faq.md
+++ b/docs/faq.md
@@ -1,35 +1,13 @@
----
-layout: page
-title:  "FAQ"
-section: "faq"
-position: 40
----
+{% laika.title = FAQ %}
 
 # Frequently Asked Questions
 
-## Questions
- * [What imports do I need?](#what-imports)
- * [I am new to pure functional programming, what quick wins can I get from Cats?](#quick-wins)
- * [What is the difference between Cats and Scalaz?](#diff-scalaz)
- * [Where is right-biased `Either`?](#either)
- * [Why is the compiler having trouble with types with more than one type parameter?](#si-2712)
- * [Why can't the compiler find implicit instances for Future?](#future-instances)
- * [Where are implicit instances for `Seq`](seq-instances)
- * [Why is some example code not compiling for me?](#example-compile)
- * [How can I turn my List of `<something>` into a `<something>` of a list?](#traverse)
- * [Where is `ListT`?](#listt)
- * [Where are `Applicative`s for monad transformers?](#applicative-monad-transformers)
- * [Where is `IO`/`Task`?](#task)
- * [What does `@typeclass` mean?](#simulacrum)
- * [What do types like `?` and `λ` mean?](#kind-projector)
- * [What is `tailRecM`?](#tailrecm)
- * [What does this symbol mean?](#symbol)
- * [How can I test instances against their type classes' laws?](#law-testing)
- * [How can I help?](#contributing)
- * [Why aren't monad transformers like `OptionT` and `EitherT` covariant like `Option` and `Either`?](#monad-transformer-variance)
- * [How to try Cats in a REPL?](#ammonite)
-
-## <a id="what-imports" href="#what-imports"></a>What imports do I need?
+@:navigationTree {
+  entries = [ { target = "faq.md", depth = 2 } ]
+}
+
+
+## What imports do I need?
 
 The easiest approach to Cats imports is to import everything that's commonly needed:
 
@@ -39,19 +17,19 @@ import cats.data._
 import cats.syntax.all._
 ```
 
-This should be all that you need, but if you'd like to learn more about the details of imports than you can check out the [import guide](typeclasses/imports.html).
+This should be all that you need, but if you'd like to learn more about the details of imports than you can check out the [import guide](imports.md).
 
-## <a id="quick-wins" href="#quick-wins"></a>I am new to pure functional programming, what quick wins can I get from Cats?
+## I am new to pure functional programming, what quick wins can I get from Cats?
 
-Please refer to the [jump start guide]({{ site.baseurl }}/jump_start_guide.html).
+Please refer to the [jump start guide](jump_start_guide.md).
 
-## <a id="diff-scalaz" href="#diff-scalaz"></a>What is the difference between Cats and Scalaz?
+## What is the difference between Cats and Scalaz?
 
 Cats and [Scalaz](https://github.com/scalaz/scalaz) have the same goal: to facilitate pure functional programming in Scala applications. However the underlying core strategy is different; Scalaz took the approach of trying to provide a single batteries-included *standard library* for FP that powers the Scala applications. Cats, on the other hand, aims to help build an [ecosystem](/cats/#ecosystem) of pure FP libraries by providing a solid and stable foundation; these libraries can have their own styles and personalities, competing with each other, while at the same time playing nice. It is through this ecosystem of FP libraries (cats included) that Scala applications can be powered with "FP awesome-ness" and beyond by picking whatever best fit their needs.
 
 Based on this core strategy, Cats takes a [modular](/cats/motivations#modularity) approach and focuses on providing core, [binary compatible](/cats/#binary-compatibility-and-versioning), [approachable](/cats/motivations#approachability) and [efficient](/cats/motivations#efficiency) abstractions. It provides a welcoming and supportive environment for the [user community](https://discord.gg/XF3CXcMzqD) governed by the [Scala Code of Conduct](https://www.scala-lang.org/conduct/). It also takes great effort in supplying a comprehensive and beginner-friendly [documentation](/cats/#documentation).
 
-## <a id="either" href="#either"></a>Where is right-biased Either?
+## Where is right-biased Either?
 Up through Cats 0.7.x we had `cats.data.Xor`, which was effectively `scala.util.Either`, but right-biased by default and with
 a bunch of useful combinators around it. In Scala 2.12.x `Either`
 [became right-biased](https://github.com/scala/scala/pull/5135) so we revisited the use of `Xor` and
@@ -61,36 +39,36 @@ fill in the gaps in the `scala.util.Either` API via
 
 This syntax and the type class instances for `Either` can be imported using `cats.implicits._`, which will also bring in syntactic enrichment and instances for other standard library types, or you can import them individually with `cats.syntax.either._` and `cats.instances.either._`.
 
-There are a few minor mismatches between `Xor` and `Either`. For example, in some cases you may need to specify a type parameter for an enrichment method on `Either` (such as `leftMap`) even though it was properly inferred for `Xor`. See the [`Either` section of this guide](http://typelevel.org/cats/datatypes/either.html#either-in-the-small-either-in-the-large) for more information about these issues.
+There are a few minor mismatches between `Xor` and `Either`. For example, in some cases you may need to specify a type parameter for an enrichment method on `Either` (such as `leftMap`) even though it was properly inferred for `Xor`. See the [`Either` section of this guide](datatypes/either.md#either-in-the-small-either-in-the-large) for more information about these issues.
 
 Similarly, `cats.data.XorT` has been replaced with `cats.data.EitherT`, although since this is a type defined in Cats, you don't need to import syntax or instances for it (although you may need imports for the underlying monad).
 
-## <a id="si-2712" href="#si-2712"></a>Why is the compiler having trouble with types with more than one type parameter?
+## Why is the compiler having trouble with types with more than one type parameter?
 
-When you encounter a situation where the same code works fine with a type with one type parameter, e.g. List[A], but doesn't work with types with more than one, e.g. Either[A, B], you probably hit [SI-2712](https://issues.scala-lang.org/browse/SI-2712). Without going into the details, it's highly recommended to enable a partial SI-2712 fix in your project. The easiest way to achieve that is through this [sbt plugin](https://github.com/fiadliel/sbt-partial-unification).
+When you encounter a situation where the same code works fine with a type with one type parameter, e.g. `List[A]`, but doesn't work with types with more than one, e.g. `Either[A, B]`, you probably hit [SI-2712](https://issues.scala-lang.org/browse/SI-2712). Without going into the details, it's highly recommended to enable a partial SI-2712 fix in your project. The easiest way to achieve that is through this [sbt plugin](https://github.com/fiadliel/sbt-partial-unification).
 Cats used to provide mitigation to this issue semi-transparently, but given the fact that the fix is now mainstream, we decided to drop that mitigation machinery in favor of reducing the complexity. See this [issue](https://github.com/typelevel/cats/issues/1073) for details.
 
-## <a id="example-compile" href="#example-compile"></a>Why is some example code not compiling for me?
+## Why is some example code not compiling for me?
 
 A portion of example code requires either the [Kind-projector](https://github.com/typelevel/kind-projector) compiler plugin or partial unification turned on in scalac. The easiest way to turn partial unification on is through this [sbt plugin](https://github.com/fiadliel/sbt-partial-unification).
 
-## <a id="future-instances" href="#future-instances"></a>Why can't the compiler find implicit instances for Future?
+## Why can't the compiler find implicit instances for Future?
 
-If you have already followed the [imports advice](#what-imports) but are still getting error messages like `could not find implicit value for parameter e: cats.Monad[scala.concurrent.Future]` or `value |+| is not a member of scala.concurrent.Future[Int]`, then make sure that you have an implicit `scala.concurrent.ExecutionContext` in scope. The easiest way to do this is to `import scala.concurrent.ExecutionContext.Implicits.global`, but note that you may want to use a different execution context for your production application.
+If you have already followed the [imports advice](#what-imports-do-i-need) but are still getting error messages like `could not find implicit value for parameter e: cats.Monad[scala.concurrent.Future]` or `value |+| is not a member of scala.concurrent.Future[Int]`, then make sure that you have an implicit `scala.concurrent.ExecutionContext` in scope. The easiest way to do this is to `import scala.concurrent.ExecutionContext.Implicits.global`, but note that you may want to use a different execution context for your production application.
 
-## <a id="seq-instances" href="#seq-instances"></a>Where are implicit instances for `Seq`?
+## Where are implicit instances for `Seq`?
 
 As of `cats-2.3`, instances for `collection.immutable.Seq` are provided by cats.
 Mind that, up to `scala-2.12`, `Seq` was an alias for `collection.Seq` and lawful instances can't be provided for it due to its potential mutability.
 In `scala-2.13`, `Seq` was changed to `collection.immutable.Seq` which greatly improves `Seq`'s interoperability with cats.
 
-## <a id="traverse" href="#traverse"></a>How can I turn my List of `<something>` into a `<something>` of a list?
+## How can I turn my List of `<something>` into a `<something>` of a list?
 
-It's really common to have a `List` of values with types like `Option`, `Either`, or `Validated` that you would like to turn "inside out" into an `Option` (or `Either` or `Validated`) of a `List`. The `sequence` and `traverse` methods are _really_ handy for this. You can read more about them in the [Traverse documentation]({{ site.baseurl }}/typeclasses/traverse.html).
+It's really common to have a `List` of values with types like `Option`, `Either`, or `Validated` that you would like to turn "inside out" into an `Option` (or `Either` or `Validated`) of a `List`. The `sequence` and `traverse` methods are _really_ handy for this. You can read more about them in the [Traverse documentation](typeclasses/traverse.md).
 
-## <a id="listt" href="#listt"></a>Where is ListT?
+## Where is ListT?
 
-There are monad transformers for various types, such as [OptionT]({{ site.baseurl }}/datatypes/optiont.html), so people often wonder why there isn't a `ListT`. For example, in the following example, people might reach for `ListT` to simplify making nested `map` and `exists` calls:
+There are monad transformers for various types, such as [OptionT](datatypes/optiont.md), so people often wonder why there isn't a `ListT`. For example, in the following example, people might reach for `ListT` to simplify making nested `map` and `exists` calls:
 
 ```scala mdoc:reset:silent
 val l: Option[List[Int]] = Some(List(1, 2, 3, 4, 5))
@@ -130,13 +108,13 @@ def even(i: Int): ErrorsOr[Int] = if (i % 2 == 0) i.validNel else s"$i is odd".i
 nl.traverse(even)
 ```
 
-## <a id="applicative-monad-transformers" href="#applicative-monad-transformers">Where are `Applicative`s for monad transformers?</a>
+## Where are `Applicative`s for monad transformers?
 
-An `Applicative` instance for `OptionT[F, *]`/`EitherT[F, E, *]`, built without a corresponding `Monad` instance for `F`, would be unlawful, so it's not included. See [the guidelines](https://typelevel.org/cats/guidelines.html#applicative-monad-transformers) for a more detailed explanation.
+An `Applicative` instance for `OptionT[F, *]`/`EitherT[F, E, *]`, built without a corresponding `Monad` instance for `F`, would be unlawful, so it's not included. See [the guidelines](guidelines.md#applicative-instances-for-monad-transformers) for a more detailed explanation.
 
 As an alternative, using `.toNested` on the monad transformer is recommended, although its `ap` will still be inconsistent with the Monad instance's.`.
 
-## <a id="task" href="#task"></a>Where is IO/Task?
+## Where is IO/Task?
 
 In purely functional programming, a monadic `IO` or `Task` type is often used to handle side effects such as file/network IO. In some languages and frameworks, such a type also serves as the primary abstraction through which parallelism is achieved.  Nearly every real-world purely functional application or service is going to require such a data type, and this gives rise to an obvious question: why doesn't Cats include such a type?
 
@@ -144,23 +122,23 @@ The answer is that Cats *does* include an `IO`, it just isn't included in the co
 
 However, we acknowledge that this type may not meet everyone's needs. The cats-effect project characterizes the space of side-effect-capturing data types with a set of typeclasses (deriving from `cats.Monad`), and so all such data types are, broadly-speaking, mutually compatible and interchangeable in many generic contexts. For example, [Monix](https://monix.io) provides support for IO, concurrency, and streaming and integrates with the cats-effect type classes.
 
-It may be worth keeping in mind that `IO` and `Task` are pretty blunt instruments (they are essentially the `Any` of side effect management), and you may want to narrow the scope of your effects throughout most of your application. The [free monad]({{ site.baseurl }}/datatypes/freemonad.html) documentation describes a way to abstractly define controlled effects and interpret them into a type such as `IO` or `Task` as late as possible. As more of your code becomes pure through these controlled effects the less it matters which type you end up choosing to represent your side effects.
+It may be worth keeping in mind that `IO` and `Task` are pretty blunt instruments (they are essentially the `Any` of side effect management), and you may want to narrow the scope of your effects throughout most of your application. The [free monad](datatypes/freemonad.md) documentation describes a way to abstractly define controlled effects and interpret them into a type such as `IO` or `Task` as late as possible. As more of your code becomes pure through these controlled effects the less it matters which type you end up choosing to represent your side effects.
 
-## <a id="simulacrum" href="#simulacrum"></a>What does `@typeclass` mean?
+## What does `@typeclass` mean?
 
 Cats defines and implements numerous type classes. Unfortunately, encoding these type classes in Scala can incur a large amount of boilerplate. To address this, [Simulacrum](https://github.com/typelevel/simulacrum) introduces `@typeclass`, a macro annotation which generates a lot of this boilerplate. This elevates type classes to a first class construct and increases the legibility and maintainability of the code. Use of simulacrum also ensures consistency in how the type classes are encoded across a project. Cats uses simulacrum wherever possible to encode type classes, and you can read more about it at the [project page](https://github.com/typelevel/simulacrum).
 
 Note that the one area where simulacrum is intentionally not used is in the `cats-kernel` module. The `cats-kernel` module is intended to be a shared dependency for a number of projects, and as such, it is important that it is both lightweight and very stable from a binary compatibility perspective. At some point there may be a transition from simulacrum to [typeclassic](https://github.com/typelevel/typeclassic), and the binary compatibility of moving between simulacrum and typeclassic is unclear at this point. Avoiding the dependency on simulacrum in `cats-kernel`, provides insulation against any potential binary compatibility problems in such a transition.
 
-## <a id="kind-projector" href="#kind-projector"></a>What do types like `?` and `λ` mean?
+## What do types like `?` and `λ` mean?
 
-Cats defines a wealth of type classes and type class instances. For a number of the type class and instance combinations, there is a mismatch between the type parameter requirements of the type class and the type parameter requirements of the data type for which the instance is being defined. For example, the [Either]({{ site.baseurl }}/datatypes/either.html) data type is a type constructor with two type parameters. We would like to be able to define a [Monad]({{ site.baseurl }}/typeclasses/monad.html) for `Either`, but the `Monad` type class operates on type constructors having only one type parameter.
+Cats defines a wealth of type classes and type class instances. For a number of the type class and instance combinations, there is a mismatch between the type parameter requirements of the type class and the type parameter requirements of the data type for which the instance is being defined. For example, the [Either](datatypes/either.md) data type is a type constructor with two type parameters. We would like to be able to define a [Monad](typeclasses/monad.md) for `Either`, but the `Monad` type class operates on type constructors having only one type parameter.
 
-**Enter type lambdas!** Type lambdas provide a mechanism to allow one or more of the type parameters for a particular type constructor to be fixed. In the case of `Either` then, when defining a `Monad` for `Either`, we want to fix one of the type parameters at the point where a `Monad` instance is summoned, so that the type parameters line up. As `Either` is right biased, a type lambda can be used to fix the left type parameter and allow the right type parameter to continue to vary when `Either` is treated as a `Monad`. The right biased nature of `Either` is discussed further in the [`Either` documentation]({{ site.baseurl }}/datatypes/either.html).
+**Enter type lambdas!** Type lambdas provide a mechanism to allow one or more of the type parameters for a particular type constructor to be fixed. In the case of `Either` then, when defining a `Monad` for `Either`, we want to fix one of the type parameters at the point where a `Monad` instance is summoned, so that the type parameters line up. As `Either` is right biased, a type lambda can be used to fix the left type parameter and allow the right type parameter to continue to vary when `Either` is treated as a `Monad`. The right biased nature of `Either` is discussed further in the [`Either` documentation](datatypes/either.md).
 
 **Enter [kind-projector](https://github.com/typelevel/kind-projector)!** kind-projector is a compiler plugin which provides a convenient syntax for dealing with type lambdas. The symbols `?` and `λ` are treated specially by kind-projector, and expanded into the more verbose definitions that would be required were it not to be used. You can read more about kind-projector at the [project page](https://github.com/typelevel/kind-projector).
 
-## <a id="tailrecm" href="#tailrecm"></a>What is `tailRecM`?
+## What is `tailRecM`?
 
 The `FlatMap` type class has a `tailRecM` method with the following signature:
 
@@ -215,7 +193,7 @@ If you're having trouble figuring out how to implement `tailRecM` lawfully, you
 In some cases you may decide that providing a lawful `tailRecM` may be impractical or even impossible (if so we'd like to hear about it). For these cases we provide a way of testing all of the monad laws _except_ for the stack safety of `tailRecM`: just replace `MonadTests[F].monad[A, B, C]` in your tests with `MonadTests[F].stackUnsafeMonad[A, B, C]`.
 
 
-## <a id="symbol" href="#symbol"></a>What does this symbol mean?
+## What does this symbol mean?
 
 Below is a list of symbols used in Cats.
 
@@ -252,20 +230,20 @@ All other symbols can be imported with `import cats.implicits._`
 | `fa << fb` (Deprecated)          | product left               |                  | `FlatMap[F[_]]`         | `productL(fa: F[A])(fb: F[B]): F[A]`                               |
 
 
-## <a id="law-testing" href="#law-testing"></a>How can I test instances against their type classes' laws?
+## How can I test instances against their type classes' laws?
 
-You can find more information [here](typeclasses/lawtesting.html).
+You can find more information [here](typeclasses/lawtesting.md).
 
-## <a id="contributing" href="#contributing"></a>How can I help?
+## How can I help?
 
 The Сats community welcomes and encourages contributions, even if you are completely new to Сats and functional programming. Here are a few ways to help out:
 
 - Find an undocumented method and write a ScalaDoc entry for it. See [Arrow.scala](https://github.com/typelevel/cats/blob/main/core/src/main/scala/cats/arrow/Arrow.scala) for some examples of ScalaDoc entries that use [sbt-doctest](https://github.com/tkawachi/sbt-doctest).
 - Find an [open issue](https://github.com/typelevel/cats/issues?q=is%3Aopen+is%3Aissue+label%3Aready), leave a comment on it to let people know you are working on it, and submit a pull request. If you are new to Сats, you may want to look for items with the [low-hanging-fruit](https://github.com/typelevel/cats/issues?q=is%3Aopen+is%3Aissue+label%3A%22low-hanging+fruit%22) label.
 
-See the [contributing guide]({{ site.baseurl }}/contributing.html) for more information.
+See the [contributing guide](CONTRIBUTING.md) for more information.
 
-## <a id="ammonite" href="#ammonite"></a>How to try Cats in a REPL?
+## How to try Cats in a REPL?
 
 The easiest way is probably using [Ammonite-REPL](http://ammonite.io/). Install it following the instructions there. Then in the amm console you can type in
 ```scala
@@ -274,6 +252,6 @@ import $ivy.`org.typelevel::cats-core:2.1.1`, cats._, cats.data._, cats.implicit
 ```
 Or if you want, you can add these lines to `~/.ammonite/predef.sc` so that they are enabled every ammonite session.
 
-## <a id="monad-transformer-variance" href="#monad-transformer-variance"></a>Why aren't monad transformers like `OptionT` and `EitherT` covariant like `Option` and `Either`?
+## Why aren't monad transformers like `OptionT` and `EitherT` covariant like `Option` and `Either`?
 
 Please see [Variance of Monad Transformers](https://typelevel.org/blog/2018/09/29/monad-transformer-variance.html) on the Typelevel blog.
diff --git a/docs/src/main/mdoc/guidelines.md b/docs/guidelines.md
similarity index 89%
rename from docs/src/main/mdoc/guidelines.md
rename to docs/guidelines.md
index baf5a5a05f..bf52a831aa 100644
--- a/docs/src/main/mdoc/guidelines.md
+++ b/docs/guidelines.md
@@ -1,29 +1,22 @@
----
-layout: page
-title:  "Guidelines"
-section: "guidelines"
-position: 70
----
-
 # Guidelines
 
 All guidelines in Сats should have clear justifications. There is no room for tribal wisdom in a simple library.
 
 ## Syntax
 
-### <a id="implicit-syntax-conversions" href="#implicit-syntax-conversions"></a> Composing Implicit Conversions in Traits
+### Composing Implicit Conversions in Traits
 
 Implicit syntax conversions provided in publicly-exposed traits should be marked final
 so that any composition of the traits provides conversions that can all be inlined.
 
-### <a id="ops-classes" href="#ops-classes"></a> Ops Classes
+### Ops Classes
 
 Ops classes should be marked final and extend AnyVal, to take full advantage of inlining and prevent unnecessary allocations.
 
 The most notable exception is the case where all of the ops in the class are provided by zero-cost macros anyway,
 for example with Simulacrum.
 
-### <a id="partially-applied-type-params" href="#partially-applied-type-params"></a> Partially-Applied Type
+### Partially-Applied Type
 
 In Scala, when there are multiple type parameters in a function, either scalac infers all type parameters or the user has to
 specify all of them. Often we have functions where there are one or more types that are inferable but not all of them. For example, there is helper function in `OptionT` that creates an `OptionT[F, A]` from an `A`. It could be written as:
@@ -69,7 +62,7 @@ The user doesn't need to specify the type `A` which is given by the parameter.
 You probably noticed that there is a `val dummy: Boolean` in the `PurePartiallyApplied` class. This is a trick we used
 to make this intermediate class a [Value Class](http://docs.scala-lang.org/overviews/core/value-classes.html) so that there is no cost of allocation, i.e. at runtime, it doesn't create an instance of `PurePartiallyApplied`. We also hide this partially applied class by making it package private and placing it inside an object.
 
-### <a id="implicit-naming" href="#implicit-naming"></a> Implicit naming
+### Implicit naming
 
 In a widely-used library it's important to minimize the chance that the names of implicits will be used by others and
 therefore name our implicits according to the following rules:
@@ -86,7 +79,7 @@ This rule is relatively flexible. Use what you see appropriate. The goal is to m
 
 
 
-### <a id="implicit-priority" href="#implicit-priority"></a> Implicit instance priority
+### Implicit instance priority
 
 When there are multiple instances provided implicitly, if the type class of them are in the same inheritance hierarchy,
 the instances need to be separated out into different abstract class/traits so that they don't conflict with each other. The names of these abstract classes/traits should be numbered with a priority with 0 being the highest priority. The abstract classes/trait
@@ -116,7 +109,7 @@ abstract class KleisliInstance1 {
 We can introduce new type classes for the sake of adding laws that don't apply to the parent type class, e.g. `CommutativeSemigroup` and
 `CommutativeArrow`.
 
-### <a id="applicative-monad-transformers" href="#applicative-monad-transformers">Applicative instances for monad transformers</a>
+### Applicative instances for monad transformers</a>
 
 We explicitly don't provide an instance of `Applicative` for e.g. `EitherT[F, String, *]` given an `Applicative[F]`.
 An attempt to construct one without a proper `Monad[F]` instance would be inconsistent in `ap` with the provided `Monad` instance
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similarity index 100%
rename from docs/src/main/resources/microsite/img/sponsors/inner-product.png
rename to docs/img/sponsors/inner-product.png
diff --git a/docs/src/main/resources/microsite/img/sponsors/iterators.png b/docs/img/sponsors/iterators.png
similarity index 100%
rename from docs/src/main/resources/microsite/img/sponsors/iterators.png
rename to docs/img/sponsors/iterators.png
diff --git a/docs/src/main/resources/microsite/img/sponsors/triplequote.png b/docs/img/sponsors/triplequote.png
similarity index 100%
rename from docs/src/main/resources/microsite/img/sponsors/triplequote.png
rename to docs/img/sponsors/triplequote.png
diff --git a/docs/src/main/resources/microsite/img/sponsors/underscore.png b/docs/img/sponsors/underscore.png
similarity index 100%
rename from docs/src/main/resources/microsite/img/sponsors/underscore.png
rename to docs/img/sponsors/underscore.png
diff --git a/docs/src/main/mdoc/typeclasses/imports.md b/docs/imports.md
similarity index 72%
rename from docs/src/main/mdoc/typeclasses/imports.md
rename to docs/imports.md
index ef13e73078..866a9986e1 100644
--- a/docs/src/main/mdoc/typeclasses/imports.md
+++ b/docs/imports.md
@@ -1,8 +1,3 @@
----
-layout: docs
-title:  "Imports"
-section: "imports"
----
 # Imports
 
 The easiest approach to Сats imports is to import everything that's commonly needed:
@@ -13,7 +8,7 @@ import cats.data._
 import cats.syntax.all._
 ```
 
-The `cats._` import brings in quite a few [type classes](http://typelevel.org/cats/typeclasses.html) (similar to interfaces) such as [Monad](http://typelevel.org/cats/typeclasses/monad.html), [Semigroup](http://typelevel.org/cats/typeclasses/semigroup.html), and [Foldable](http://typelevel.org/cats/typeclasses/foldable.html). Instead of the entire `cats` package, you can import only the types that you need, for example:
+The `cats._` import brings in quite a few [type classes](typeclasses.md) (similar to interfaces) such as [Monad](typeclasses/monad.md), [Semigroup](typeclasses/semigroup.md), and [Foldable](typeclasses/foldable.md). Instead of the entire `cats` package, you can import only the types that you need, for example:
 
 ```scala mdoc:reset:silent
 import cats.Monad
@@ -21,7 +16,7 @@ import cats.Semigroup
 import cats.Foldable
 ```
 
-The `cats.data._`, import brings in data structures such as [Validated](http://typelevel.org/cats/datatypes/validated.html) and [State](http://typelevel.org/cats/datatypes/state.html). Instead of the entire `cats.data` package, you can import only the types that you need, for example:
+The `cats.data._`, import brings in data structures such as [Validated](datatypes/validated.md) and [State](datatypes/state.md). Instead of the entire `cats.data` package, you can import only the types that you need, for example:
 
 ```scala mdoc:reset:silent
 import cats.data.Validated
diff --git a/docs/index.md b/docs/index.md
new file mode 120000
index 0000000000..32d46ee883
--- /dev/null
+++ b/docs/index.md
@@ -0,0 +1 @@
+../README.md
\ No newline at end of file
diff --git a/docs/src/main/resources/microsite/js/sponsors.js b/docs/js/sponsors.js
similarity index 85%
rename from docs/src/main/resources/microsite/js/sponsors.js
rename to docs/js/sponsors.js
index 13daa94360..c64d9e270c 100644
--- a/docs/src/main/resources/microsite/js/sponsors.js
+++ b/docs/js/sponsors.js
@@ -60,39 +60,39 @@ sponsors();
 addSponsor('gold-sponsors', {
     name: "47 Degrees",
     website: "https://47deg.com",
-    imageUrl: "https://typelevel.org/cats/img/sponsors/47_degree.png"
+    imageUrl: "img/sponsors/47_degree.png"
 });
 addSponsor('gold-sponsors', {
     name: "Iterators",
     website: "https://iteratorshq.com",
-    imageUrl: "https://typelevel.org/cats/img/sponsors/iterators.png",
+    imageUrl: "img/sponsors/iterators.png",
     marginBottom: 20
 });
 addSponsor('gold-sponsors', {
     name: "Triplequote",
     website: "https://triplequote.com",
-    imageUrl: "https://typelevel.org/cats/img/sponsors/triplequote.png",
+    imageUrl: "img/sponsors/triplequote.png",
     marginBottom: 20
 });
 addSponsor('gold-sponsors', {
     name: "Underscore",
     website: "https://underscore.com",
-    imageUrl: "https://typelevel.org/cats/img/sponsors/underscore.png",
+    imageUrl: "img/sponsors/underscore.png",
     marginBottom: 10
 });
 addSponsor('silver-sponsors', {
     name: "Ebiznext",
     website: "https://ebiznext.com",
-    imageUrl: "https://typelevel.org/cats/img/sponsors/ebiznext.png",
+    imageUrl: "img/sponsors/ebiznext.png",
     marginBottom: 10
 });
 addSponsor('silver-sponsors', {
     name: "Inner Product",
     website: "https://inner-product.com",
-    imageUrl: "https://typelevel.org/cats/img/sponsors/inner-product.png"
+    imageUrl: "img/sponsors/inner-product.png"
 });
 addSponsor('silver-sponsors', {
     name: "Evolution Gaming Engineering",
     website: "https://evolutiongaming.com",
-    imageUrl: "https://typelevel.org/cats/img/sponsors/evolution_gaming_engineering.png"
+    imageUrl: "img/sponsors/evolution_gaming_engineering.png"
 });
diff --git a/docs/src/main/mdoc/jump_start_guide.md b/docs/jump_start_guide.md
similarity index 96%
rename from docs/src/main/mdoc/jump_start_guide.md
rename to docs/jump_start_guide.md
index a00c8aed35..50d92a2b5c 100644
--- a/docs/src/main/mdoc/jump_start_guide.md
+++ b/docs/jump_start_guide.md
@@ -1,8 +1,4 @@
----
-layout: page
-title:  "Jump Start Guide"
-section: "jump_start_guide"
----
+{% laika.title = Jump Start Guide %}
 
 # Introduction
 
@@ -126,8 +122,8 @@ def processAsync: Future[ProcessingResult] = {
 }
 ```
 
-By default the implicit instances (namely, [`Functor[Future]`](http://typelevel.org/cats/api/cats/Functor.html) and
-[`Semigroupal[Future]`](https://typelevel.org/cats/api/cats/Semigroupal.html)) required for `mapN` to work properly are always visible. They are present in the respective companion objects of the instances and hence we do not need to import them explicitly.  
+By default the implicit instances (namely, [`Functor[Future]`](@API_URL@/cats/Functor.html) and
+[`Semigroupal[Future]`](@API_URL@/cats/Semigroupal.html)) required for `mapN` to work properly are always visible. They are present in the respective companion objects of the instances and hence we do not need to import them explicitly.  
 
 This above idea can be expressed even shorter, just:
 
@@ -228,7 +224,7 @@ and that solves our problem for good.
 
 ## `import cats.data.OptionT`
 
-An instance of [`OptionT[F, A]`](http://typelevel.org/cats/api/cats/data/EitherT.html) can be thought of as a wrapper over `F[Option[A]]`
+An instance of [`OptionT[F, A]`](datatypes/optiont.md) can be thought of as a wrapper over `F[Option[A]]`
 which adds a couple of useful methods specific to nested types that aren't available in `F` or `Option` itself.
 Most typically, your `F` will be `Future` (or sometimes slick's `DBIO`, but this requires having an implementation of Cats type classes like `Functor` or `Monad` for `DBIO`).
 Wrappers such as `OptionT` are generally known as _monad transformers_.
@@ -315,7 +311,7 @@ Otherwise, if the result of all three calls contains `Some`, the final outcome w
 
 ## `import cats.data.EitherT`
 
-[`EitherT[F, A, B]`](http://typelevel.org/cats/api/cats/data/EitherT.html) is the monad transformer for `Either` — you can think of it as a wrapper over a `F[Either[A, B]]` value.
+[`EitherT[F, A, B]`](datatypes/eithert.md) is the monad transformer for `Either` — you can think of it as a wrapper over a `F[Either[A, B]]` value.
 
 Just as in the above section, I simplified the method headers, skipping type parameters or their context bounds and lower bounds.
 
diff --git a/docs/src/main/mdoc/motivations.md b/docs/motivations.md
similarity index 86%
rename from docs/src/main/mdoc/motivations.md
rename to docs/motivations.md
index 3146fcc855..bab6174237 100644
--- a/docs/src/main/mdoc/motivations.md
+++ b/docs/motivations.md
@@ -1,10 +1,4 @@
----
-layout: page
-title:  "Motivations"
-section: "motivations"
-position: 25
----
-
+{% laika.title = Motivations %}
 
 #### Approachability
 
@@ -16,12 +10,12 @@ in trying to teach others about these concepts, and trying to make
 decisions which will help ease the process of getting acquainted to
 the library for a newcomer. If you have any feedback for us in this
 regard, we would love to hear from you. See the [Contributing
-page](contributing.html) to find out ways to give us feedback.
+page](CONTRIBUTING.md) to find out ways to give us feedback.
 
 #### Modularity
 
 We are trying to make the library modular. It will have a tight
-core which will contain only the [type classes](typeclasses.html),
+core which will contain only the [type classes](typeclasses.md),
 the bare minimum of data structures that are needed to support
 them, and type class instances for those data structures and standard
 library types.
@@ -37,7 +31,7 @@ how the software can be used.
 
 Writing documentation is a huge part of developing software, and one
 that is often neglected. It is also a very easy way to get started
-with [contributing](contributing.html) to the project.
+with [contributing](CONTRIBUTING.md) to the project.
 
 #### Efficiency
 
diff --git a/docs/src/main/mdoc/nomenclature.md b/docs/nomenclature.md
similarity index 98%
rename from docs/src/main/mdoc/nomenclature.md
rename to docs/nomenclature.md
index d4c8f31a82..efc810b0a7 100644
--- a/docs/src/main/mdoc/nomenclature.md
+++ b/docs/nomenclature.md
@@ -1,9 +1,4 @@
----
-layout: page
-title:  "Glossary"
-section: "Glossary"
-position: 60
----
+# Glossary
 
 This is a catalogue of the major functions, type classes, and data types in `Cats`. It serves as a bird's-eye view of each class capabilities. It is also intended as a go-to reference for `Cats` users, who may not recall the answer to questions like these:
 
@@ -283,6 +278,6 @@ Because `Сats` is a Scala library and Scala has many knobs and switches, the ac
 - For functions defined as method of the typeclass trait, we ignore the receiver object.
 - We ignore implicit parameters that represent type-class constraints; and write them on a side column instead.
 - We use `A => B` for both `Function1[A, B]` and `PartialFunction[A, B]` parameters, without distinction. We add a side note when one is  a `PartialFunction`.
-- Some functions are defined through the [Partially Applied Type Params](http://typelevel.org/cats/guidelines.html#partially-applied-type-params) pattern. We ignore this.
+- Some functions are defined through the [Partially Applied Type Params](guidelines.md#partially-applied-type) pattern. We ignore this.
 - We ignore the distinction between by-name and by-value input parameters. We use the notation `=> A`, without parameters, to indicate constant functions.
 - We ignore Scala variance annotations. We also ignore extra type parameters, which in some methods are added with a subtype-constraint, (e.g. `B >: A`). These are usually meant for flexibility, but we replace each one by its bound.
diff --git a/docs/src/main/mdoc/resources_for_learners.md b/docs/resources_for_learners.md
similarity index 96%
rename from docs/src/main/mdoc/resources_for_learners.md
rename to docs/resources_for_learners.md
index d22c8340b8..cfd6d49ac6 100644
--- a/docs/src/main/mdoc/resources_for_learners.md
+++ b/docs/resources_for_learners.md
@@ -1,9 +1,5 @@
----
-layout: page
-title:  "Resources for Learners"
-section: "resources_for_learners"
-position: 30
----
+{% laika.title = Resources for Learners %}
+
 # Books
  * [Functional Programming in Scala](https://www.manning.com/books/functional-programming-in-scala)
    by Paul Chiusano and Rúnar Bjarnason - While this book does not
diff --git a/docs/src/main/mdoc/datatypes.md b/docs/src/main/mdoc/datatypes.md
deleted file mode 100644
index 0d493cea49..0000000000
--- a/docs/src/main/mdoc/datatypes.md
+++ /dev/null
@@ -1,13 +0,0 @@
----
-layout: docs
-title:  "Data Types"
-section: "data"
-position: 20
----
-# Data Types
-
-{% for x in site.pages %}
-  {% if x.section == 'data' and x.title != page.title %}
-- [{{x.title}}]({{site.baseurl}}{{x.url}})
-  {% endif %}
-{% endfor %}
diff --git a/docs/src/main/mdoc/typeclasses.md b/docs/src/main/mdoc/typeclasses.md
deleted file mode 100644
index 8a5ab9b81e..0000000000
--- a/docs/src/main/mdoc/typeclasses.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-layout: docs
-title:  "Type Classes"
-section: "typeclasses"
-position: 10
----
-{% include_relative typeclasses/typeclasses.md %}
diff --git a/docs/src/main/resources/microsite/css/override.css b/docs/src/main/resources/microsite/css/override.css
deleted file mode 100644
index 5a539f14f7..0000000000
--- a/docs/src/main/resources/microsite/css/override.css
+++ /dev/null
@@ -1,3 +0,0 @@
-.technologies {
-	display: none;
-}
\ No newline at end of file
diff --git a/docs/src/main/resources/microsite/data/menu.yml b/docs/src/main/resources/microsite/data/menu.yml
deleted file mode 100644
index b967b9553d..0000000000
--- a/docs/src/main/resources/microsite/data/menu.yml
+++ /dev/null
@@ -1,220 +0,0 @@
-options:
-
-  #############################
-  # Type Classes Menu Options #
-  #############################
-
-  - title: Type Classes
-    url: typeclasses.html
-    menu_type: typeclasses
-    menu_section: typeclasses
-
-  - title: Semigroups and Monoids
-    url: typeclasses/semigroup.html
-    menu_type: typeclasses
-    menu_section: semigroupsandmonoids
-
-    nested_options:
-     - title: Semigroup
-       url: typeclasses/semigroup.html
-       menu_section: semigroupsandmonoids
-     - title: Monoid
-       url: typeclasses/monoid.html
-       menu_section: semigroupsandmonoids
-
-  - title: Applicative and Traversable Functors
-    url: typeclasses/applicativetraverse.html
-    menu_type: typeclasses
-    menu_section: applicative
-
-    nested_options:
-     - title: Functor
-       url: typeclasses/functor.html
-       menu_section: applicative
-     - title: Applicative
-       url: typeclasses/applicative.html
-       menu_section: applicative
-     - title: Traverse
-       url: typeclasses/traverse.html
-       menu_type: typeclasses
-       menu_section: applicative
-
-  - title: Monads
-    url: typeclasses/monad.html
-    menu_type: typeclasses
-    menu_section: monads
-
-  - title: Comonads
-    url: typeclasses/comonad.html
-    menu_type: typeclasses
-    menu_section: comonads
-
-  - title: Variance and Functors
-    url: typeclasses/functor.html
-    menu_type: typeclasses
-    menu_section: variance
-
-    nested_options:
-     - title: Functor
-       url: typeclasses/functor.html
-       menu_section: variance
-     - title: Contravariant
-       url: typeclasses/contravariant.html
-       menu_section: variance
-     - title: ContravariantMonoidal
-       url: typeclasses/contravariantmonoidal.html
-       menu_type: typeclasses
-     - title: Invariant
-       url: typeclasses/invariant.html
-       menu_section: variance
-     - title: InvariantMonoidal
-       url: typeclasses/invariantmonoidal.html
-       menu_section: variance
-
-  - title: Alternative
-    url: typeclasses/alternative.html
-    menu_type: typeclasses
-
-  - title: Bifunctor
-    url: typeclasses/bifunctor.html
-    menu_type: typeclasses
-
-  - title: Eq
-    url: typeclasses/eq.html
-    menu_type: typeclasses
-
-  - title: Foldable
-    url: typeclasses/foldable.html
-    menu_type: typeclasses
-
-  - title: Parallel
-    url: typeclasses/parallel.html
-    menu_type: typeclasses
-
-  - title: SemigroupK
-    url: typeclasses/semigroupk.html
-    menu_type: typeclasses
-
-  - title: MonoidK
-    url: typeclasses/monoidk.html
-    menu_type: typeclasses
-
-  - title: Show
-    url: typeclasses/show.html
-    menu_type: typeclasses
-
-  - title: Reducible
-    url: typeclasses/reducible.html
-    menu_type: typeclasses
-
-  - title: ApplicativeError and MonadError
-    url: typeclasses/applicativemonaderror.html
-    menu_type: typeclasses
-
-  - title: NonEmptyTraverse
-    url: typeclasses/nonemptytraverse.html
-    menu_type: typeclasses
-
-  - title: Arrow
-    url: typeclasses/arrow.html
-    menu_type: typeclasses
-
-  - title: Arrow Choice
-    url: typeclasses/arrowchoice.html
-    menu_type: typeclasses
-
-  - title: Law Testing
-    url: typeclasses/lawtesting.html
-    menu_type: typeclasses
-
-  ###########################
-  # Data Types Menu Options #
-  ###########################
-
-  - title: Data Types
-    url: datatypes.html
-    menu_type: data
-
-  - title: Chain
-    url: datatypes/chain.html
-    menu_type: data
-
-  - title: Const
-    url: datatypes/const.html
-    menu_type: data
-
-  - title: ContT
-    url: datatypes/contt.html
-    menu_type: data
-
-  - title: Either
-    url: datatypes/either.html
-    menu_type: data
-
-  - title: Eval
-    url: datatypes/eval.html
-    menu_type: data
-
-  - title: FreeApplicatives
-    url: datatypes/freeapplicative.html
-    menu_type: data
-
-  - title: FreeMonads
-    url: datatypes/freemonad.html
-    menu_type: data
-
-  - title: FunctionK
-    url: datatypes/functionk.html
-    menu_type: data
-
-  - title: Id
-    url: datatypes/id.html
-    menu_type: data
-
-  - title: Ior
-    url: datatypes/ior.html
-    menu_type: data
-
-  - title: Kleisli
-    url: datatypes/kleisli.html
-    menu_type: data
-
-  - title: Writer
-    url: datatypes/writer.html
-    menu_type: data
-
-  - title: WriterT
-    url: datatypes/writert.html
-    menu_type: data
-
-  - title: Nested
-    url: datatypes/nested.html
-    menu_type: data
-
-  - title: NonEmptyList
-    url: datatypes/nel.html
-    menu_type: data
-
-  - title: OneAnd
-    url: datatypes/oneand.html
-    menu_type: data
-
-  - title: OptionT
-    url: datatypes/optiont.html
-    menu_type: data
-
-  - title: EitherT
-    url: datatypes/eithert.html
-    menu_type: data
-
-  - title: IorT
-    url: datatypes/iort.html
-    menu_type: data
-
-  - title: State
-    url: datatypes/state.html
-    menu_type: data
-
-  - title: Validated
-    url: datatypes/validated.html
-    menu_type: data
diff --git a/docs/src/main/mdoc/typeclasses/typeclasses.md b/docs/typeclasses.md
similarity index 82%
rename from docs/src/main/mdoc/typeclasses/typeclasses.md
rename to docs/typeclasses.md
index 47b9ed60d8..e703e03067 100644
--- a/docs/src/main/mdoc/typeclasses/typeclasses.md
+++ b/docs/typeclasses.md
@@ -1,4 +1,4 @@
-# Type classes
+# Type Classes
 Type classes are a powerful tool used in functional programming to enable ad-hoc polymorphism, more commonly
 known as overloading. Where many object-oriented languages leverage subtyping for polymorphic code, functional
 programming tends towards a combination of parametric polymorphism (think type parameters, like Java generics)
@@ -225,7 +225,7 @@ val result = Monoid[Int].combine(sumLeft, sumRight)
 Cats provides laws for type classes via the `kernel-laws` and `laws` modules which makes law checking
 type class instances easy.
 
-You can find out more about law testing [here](typeclasses/lawtesting.html).
+You can find out more about law testing [here](typeclasses/lawtesting.md).
 
 ## Type classes in Cats
 
@@ -240,18 +240,18 @@ Originally from [@alexknvl](https://gist.github.com/alexknvl/d63508ddb6a728015ac
 
 | Type            | Functor | Apply             | Applicative | Monad | MonoidK | ApplicativeError  | MonadError | CoflatMap | Comonad | Bimonad |
 | --------------- |:-------:|:-----------------:|:-----------:|:-----:|:-------:|:-----------------:|:----------:|:---------:|:-------:|:-------:|
-| Id[A]           | ✔       | ✔                 | ✔           | ✔     | ✗       | ✗                 | ✗          | ✔         | ✔       |✔       |
-| Eval[A]         | ✔       | ✔                 | ✔           | ✔     | ✗       | ✗                 | ✗          | ✔         | ✔       |✔       |
-| Option[A]       | ✔       | ✔                 | ✔           | ✔     | ✔       | ✔                 | ✔          | ✔         | ✗       |✗       |
-| Const[K, A]     | ✔       | ✔ (`K:Monoid`)    | ✔           | ✗     | ✗       | ✗                 | ✗          | ✗         | ✗       |✗       |
-| Either[E, A]    | ✔       | ✔                 | ✔           | ✔     | ✔       | ✔                 | ✔          | ✗         | ✗       |✗       |
-| List[A]         | ✔       | ✔                 | ✔           | ✔     | ✔       | ✗                 | ✗          | ✔         | ✗       |✗       |
-| NonEmptyList[A] | ✔       | ✔                 | ✔           | ✔     | ✗       | ✗                 | ✗          | ✔         | ✔       |✔       |
-| Stream[A]       | ✔       | ✔                 | ✔           | ✔     | ✔       | ✗                 | ✗          | ✔         | ✗       |✗       |
-| Map[K, A]       | ✔       | ✔                 | ✗           | ✗     | ✔       | ✗                 | ✗          | ✗         | ✗       |✗       |
-| Validated[E, A] | ✔       | ✔ (`E: Semigroup`)| ✔           | ✗     | ✗       | ✔ (`E: Semigroup`)| ✗          | ✗         | ✗       |✗       |
-| Reader[E, A]    | ✔       | ✔                 | ✔           | ✔     | ✗       | ✗                 | ✗          | ✗         | ✗       |✗       |
-| Writer[E, A]    | ✔       | ✔ (`E:Monoid`)    | ✔           | ✔     | ✗       | ✗                 | ✗          | ✔         | ✗       |✗       |
+| `Id[A]`           | ✔       | ✔                 | ✔           | ✔     | ✗       | ✗                 | ✗          | ✔         | ✔       |✔       |
+| `Eval[A]`         | ✔       | ✔                 | ✔           | ✔     | ✗       | ✗                 | ✗          | ✔         | ✔       |✔       |
+| `Option[A]`       | ✔       | ✔                 | ✔           | ✔     | ✔       | ✔                 | ✔          | ✔         | ✗       |✗       |
+| `Const[K, A]`     | ✔       | ✔ (`K:Monoid`)    | ✔           | ✗     | ✗       | ✗                 | ✗          | ✗         | ✗       |✗       |
+| `Either[E, A]`    | ✔       | ✔                 | ✔           | ✔     | ✔       | ✔                 | ✔          | ✗         | ✗       |✗       |
+| `List[A]`         | ✔       | ✔                 | ✔           | ✔     | ✔       | ✗                 | ✗          | ✔         | ✗       |✗       |
+| `NonEmptyList[A]` | ✔       | ✔                 | ✔           | ✔     | ✗       | ✗                 | ✗          | ✔         | ✔       |✔       |
+| `Stream[A]`       | ✔       | ✔                 | ✔           | ✔     | ✔       | ✗                 | ✗          | ✔         | ✗       |✗       |
+| `Map[K, A]`       | ✔       | ✔                 | ✗           | ✗     | ✔       | ✗                 | ✗          | ✗         | ✗       |✗       |
+| `Validated[E, A]` | ✔       | ✔ (`E: Semigroup`)| ✔           | ✗     | ✗       | ✔ (`E: Semigroup`)| ✗          | ✗         | ✗       |✗       |
+| `Reader[E, A]`    | ✔       | ✔                 | ✔           | ✔     | ✗       | ✗                 | ✗          | ✗         | ✗       |✗       |
+| `Writer[E, A]`    | ✔       | ✔ (`E:Monoid`)    | ✔           | ✔     | ✗       | ✗                 | ✗          | ✔         | ✗       |✗       |
 
 
 
diff --git a/docs/src/main/mdoc/typeclasses/alternative.md b/docs/typeclasses/alternative.md
similarity index 96%
rename from docs/src/main/mdoc/typeclasses/alternative.md
rename to docs/typeclasses/alternative.md
index 3f03ada921..3eaae295cd 100644
--- a/docs/src/main/mdoc/typeclasses/alternative.md
+++ b/docs/typeclasses/alternative.md
@@ -1,12 +1,5 @@
----
-layout: docs
-title: "Alternative"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Alternative.scala"
-scaladoc: "#cats.Alternative"
----
 # Alternative
-Alternative extends [`Applicative`](applicative.html) with a [`MonoidK`](monoidk.html).
+Alternative extends [`Applicative`](applicative.md) with a [`MonoidK`](monoidk.md).
 Let's stub out all the operations just to remind ourselves what that gets us.
 
 ```scala mdoc:silent
diff --git a/docs/src/main/mdoc/typeclasses/applicative.md b/docs/typeclasses/applicative.md
similarity index 96%
rename from docs/src/main/mdoc/typeclasses/applicative.md
rename to docs/typeclasses/applicative.md
index 63801c6279..443295a473 100644
--- a/docs/src/main/mdoc/typeclasses/applicative.md
+++ b/docs/typeclasses/applicative.md
@@ -1,12 +1,5 @@
----
-layout: docs
-title:  "Applicative"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Applicative.scala"
-scaladoc: "#cats.Applicative"
----
 # Applicative
-`Applicative` extends [`Functor`](functor.html) with an `ap` and `pure` method.
+`Applicative` extends [`Functor`](functor.md) with an `ap` and `pure` method.
 
 ```scala mdoc:silent
 import cats.Functor
@@ -104,7 +97,7 @@ but `map` doesn't give us enough power to do that. Hence, `ap`.
 
 ## Applicatives compose
 
-Like [`Functor`](functor.html), `Applicative`s compose. If `F` and `G` have `Applicative` instances, then so
+Like [`Functor`](functor.md), `Applicative`s compose. If `F` and `G` have `Applicative` instances, then so
 does `F[G[_]]`.
 
 ```scala mdoc:silent
diff --git a/docs/src/main/mdoc/typeclasses/applicativemonaderror.md b/docs/typeclasses/applicativemonaderror.md
similarity index 97%
rename from docs/src/main/mdoc/typeclasses/applicativemonaderror.md
rename to docs/typeclasses/applicativemonaderror.md
index df96ca508a..90c3f67667 100644
--- a/docs/src/main/mdoc/typeclasses/applicativemonaderror.md
+++ b/docs/typeclasses/applicativemonaderror.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Applicative Error"
-section: "typeclasses"
-source: "core/src/main/scala/cats/ApplicativeError.scala"
-scaladoc: "#cats.ApplicativeError"
----
 # ApplicativeError and MonadError
 
 ## Applicative Error
@@ -115,7 +108,7 @@ val j = attemptDivideApplicativeError[Validated[String, *]](30, 10)
 
 ### It is an `Applicative` after all
 
-As a Reminder, this is an [`Applicative`](/cats/typeclasses/applicative.html) 
+As a Reminder, this is an [`Applicative`](applicative.md) 
 so all the methods of `Applicative` are available to you to use in 
 manipulating your values, `ap`, `mapN`, etc. In the following example, notice
 we are using `Applicative`'s `map2`, and of course, `pure` which also is a 
diff --git a/docs/src/main/mdoc/typeclasses/applicativetraverse.md b/docs/typeclasses/applicativetraverse.md
similarity index 94%
rename from docs/src/main/mdoc/typeclasses/applicativetraverse.md
rename to docs/typeclasses/applicativetraverse.md
index ccdda75e3b..5786d7d2d3 100644
--- a/docs/src/main/mdoc/typeclasses/applicativetraverse.md
+++ b/docs/typeclasses/applicativetraverse.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Applicative and Traversable Functors"
-section: "typeclasses"
-scaladoc: "#cats.Functor"
----
-
 # Applicative and Traversable Functors
 
 ## An example from the standard library
diff --git a/docs/src/main/mdoc/typeclasses/arrow.md b/docs/typeclasses/arrow.md
similarity index 98%
rename from docs/src/main/mdoc/typeclasses/arrow.md
rename to docs/typeclasses/arrow.md
index 5f1b02be86..65b5fa4eb2 100644
--- a/docs/src/main/mdoc/typeclasses/arrow.md
+++ b/docs/typeclasses/arrow.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Arrow"
-section: "typeclasses"
-source: "core/src/main/scala/cats/arrow/Arrow.scala"
-scaladoc: "#cats.arrow.Arrow"
----
 # Arrow
 
 `Arrow` is a type class for modeling composable relationships between two types. One example of such a composable relationship is function `A => B`; other examples include `cats.data.Kleisli`(wrapping an `A => F[B]`, also known as `ReaderT`), and `cats.data.Cokleisli`(wrapping an `F[A] => B`). These type constructors all have `Arrow` instances. An arrow `F[A, B]` can be thought of as representing a computation from `A` to `B` with some context, just like a functor/applicative/monad `F[A]` represents a value `A` with some context.
diff --git a/docs/src/main/mdoc/typeclasses/arrowchoice.md b/docs/typeclasses/arrowchoice.md
similarity index 90%
rename from docs/src/main/mdoc/typeclasses/arrowchoice.md
rename to docs/typeclasses/arrowchoice.md
index 964104dc26..1c77ed79ad 100644
--- a/docs/src/main/mdoc/typeclasses/arrowchoice.md
+++ b/docs/typeclasses/arrowchoice.md
@@ -1,13 +1,6 @@
----
-layout: docs
-title:  "Arrow Choice"
-section: "typeclasses"
-source: "core/src/main/scala/cats/arrow/ArrowChoice.scala"
-scaladoc: "#cats.arrow.ArrowChoice"
----
+{% laika.title = Arrow Choice %}
 
-
-# `Choice`
+# Choice
 
 Usually we deal with function more often, we're so familiar with `A => B`.
 
@@ -30,7 +23,7 @@ A very useful case of `Choice` is middleware in HTTP server.
 
 Take Http4s for example:
 
-HttpRoutes[F] in Http4s is defined as [Kleisli](https://typelevel.org/cats/datatypes/kleisli.html)
+`HttpRoutes[F]` in Http4s is defined as [Kleisli](../datatypes/kleisli.md)
 
 ```scala
 type HttpRoutes[F[_]] = Kleisli[OptionT[F, *], Request[F], Response[F]]
@@ -74,7 +67,7 @@ Another example will be HTTP response handler.
 val resp: IO[Either[Throwable, String]] = httpClient.expect[String](uri"https://google.com/").attempt
 ```
 
-`attempt` is syntax from [`MonadError`](https://typelevel.org/cats/api/cats/MonadError.html)
+`attempt` is syntax from [`MonadError`](applicativemonaderror.md)
 
 When we need to handle error, without `Choice` the handler would be something like:
 ```scala
diff --git a/docs/src/main/mdoc/typeclasses/bifunctor.md b/docs/typeclasses/bifunctor.md
similarity index 95%
rename from docs/src/main/mdoc/typeclasses/bifunctor.md
rename to docs/typeclasses/bifunctor.md
index 55b80a3ef0..23425ccc7c 100644
--- a/docs/src/main/mdoc/typeclasses/bifunctor.md
+++ b/docs/typeclasses/bifunctor.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Bifunctor"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Bifunctor.scala"
-scaladoc: "#cats.Bifunctor"
----
 # Bifunctor
 
 `Bifunctor` takes two type parameters instead of one, and is a functor in both
diff --git a/docs/src/main/mdoc/typeclasses/bimonad.md b/docs/typeclasses/bimonad.md
similarity index 95%
rename from docs/src/main/mdoc/typeclasses/bimonad.md
rename to docs/typeclasses/bimonad.md
index 074b71c181..7e0f23dfe7 100644
--- a/docs/src/main/mdoc/typeclasses/bimonad.md
+++ b/docs/typeclasses/bimonad.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Bimonad"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Bimonad.scala"
-scaladoc: "#cats.Bimonad"
----
 # Bimonad
 
 The `Bimonad` trait directly extends `Monad` and `Comonad` without introducing new methods.  `Bimonad` is
diff --git a/docs/src/main/mdoc/typeclasses/comonad.md b/docs/typeclasses/comonad.md
similarity index 94%
rename from docs/src/main/mdoc/typeclasses/comonad.md
rename to docs/typeclasses/comonad.md
index 174808afba..838c39e217 100644
--- a/docs/src/main/mdoc/typeclasses/comonad.md
+++ b/docs/typeclasses/comonad.md
@@ -1,13 +1,6 @@
----
-layout: docs
-title:  "Comonad"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Comonad.scala"
-scaladoc: "#cats.Comonad"
----
 # Comonad
 
-`Comonad` is a `Functor` and provides duals of the [`Monad`](monad.html) `pure`
+`Comonad` is a `Functor` and provides duals of the [`Monad`](monad.md) `pure`
 and `flatMap` functions.  A dual to a function has the same types but the 
 direction of the arrows are reversed. Whether or not that is useful, or even possible, 
 depends on the particular type. For a more formal definition of duality, please 
diff --git a/docs/src/main/mdoc/typeclasses/contravariant.md b/docs/typeclasses/contravariant.md
similarity index 89%
rename from docs/src/main/mdoc/typeclasses/contravariant.md
rename to docs/typeclasses/contravariant.md
index 73678c17ff..027b7b1add 100644
--- a/docs/src/main/mdoc/typeclasses/contravariant.md
+++ b/docs/typeclasses/contravariant.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Contravariant"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Contravariant.scala"
-scaladoc: "#cats.Contravariant"
----
 # Contravariant
 
 The `Contravariant` type class is for functors that define a `contramap`
@@ -14,13 +7,13 @@ function with the following type:
 def contramap[A, B](fa: F[A])(f: B => A): F[B]
 ```
 
-It looks like regular (also called `Covariant`) [`Functor`](functor.html)'s `map`,
+It looks like regular (also called `Covariant`) [`Functor`](functor.md)'s `map`,
 but with the `f` transformation reversed.
 
 Generally speaking, if you have some context `F[A]` for type `A`,
 and you can get an `A` value out of a `B` value — `Contravariant` allows you to get the `F[B]` context for `B`.
 
-Examples of `Contravariant` instances are [`Show`](show.html) and `scala.math.Ordering` (along with `cats.kernel.Order`).
+Examples of `Contravariant` instances are [`Show`](show.md) and `scala.math.Ordering` (along with `cats.kernel.Order`).
 
 ## Contravariant instance for Show.
 
diff --git a/docs/src/main/mdoc/typeclasses/contravariantmonoidal.md b/docs/typeclasses/contravariantmonoidal.md
similarity index 90%
rename from docs/src/main/mdoc/typeclasses/contravariantmonoidal.md
rename to docs/typeclasses/contravariantmonoidal.md
index cae9d0ea20..e82e905a5b 100644
--- a/docs/src/main/mdoc/typeclasses/contravariantmonoidal.md
+++ b/docs/typeclasses/contravariantmonoidal.md
@@ -1,13 +1,6 @@
----
-layout: docs
-title: "Contravariant Monoidal"
-section: "typeclasses"
-source: "core/src/main/scala/cats/ContravariantMonoidal.scala"
-scaladoc: "#cats.ContravariantMonoidal"
----
 # Contravariant Monoidal
 
-The `ContravariantMonoidal` type class is for [`Contravariant`](contravariant.html) functors that can define a
+The `ContravariantMonoidal` type class is for [`Contravariant`](contravariant.md) functors that can define a
 `product` function and a `unit` function.
 
 ```scala mdoc:silent
@@ -31,7 +24,7 @@ Basically, if you have two contexts `F[B]` and `F[C]` for types
 from a type `A`, then `ContravariantMonoidal` allows you to obtain
 a context `F[A]` for the type `A`.
 
-Examples of `ContravariantMonoidal` instances are [`Eq`](eq.html) and [`Const`](../datatypes/const.html),
+Examples of `ContravariantMonoidal` instances are [`Eq`](eq.md) and [`Const`](../datatypes/const.md),
 but there are also interesting instances for other types.
 
 ## Predicates Have `ContravariantMonoidal`
diff --git a/docs/typeclasses/directory.conf b/docs/typeclasses/directory.conf
new file mode 100644
index 0000000000..570bdcf9b6
--- /dev/null
+++ b/docs/typeclasses/directory.conf
@@ -0,0 +1,30 @@
+laika.title = Type Classes
+laika.navigationOrder = [
+  alternative.md
+  applicative.md
+  applicativemonaderror.md
+  applicativetraverse.md
+  arrow.md
+  arrowchoice.md
+  bifunctor.md
+  bimonad.md
+  comonad.md
+  contravariant.md
+  contravariantmonoidal.md
+  eq.md
+  foldable.md
+  functor.md
+  invariant.md
+  invariantmonoidal.md
+  lawtesting.md
+  monad.md
+  monoid.md
+  monoidk.md
+  nonemptytraverse.md
+  parallel.md
+  reducible.md
+  semigroup.md
+  semigroupk.md
+  show.md
+  traverse.md
+]
\ No newline at end of file
diff --git a/docs/src/main/mdoc/typeclasses/eq.md b/docs/typeclasses/eq.md
similarity index 93%
rename from docs/src/main/mdoc/typeclasses/eq.md
rename to docs/typeclasses/eq.md
index b97204d4f3..dfb190d7b8 100644
--- a/docs/src/main/mdoc/typeclasses/eq.md
+++ b/docs/typeclasses/eq.md
@@ -1,11 +1,3 @@
----
-layout: docs
-title:  "Eq"
-section: "typeclasses"
-source: "kernel/src/main/scala/cats/kernel/Eq.scala"
-scaladoc: "#cats.kernel.Eq"
----
-
 # Eq
 
 Eq is an alternative to the standard Java `equals` method.
diff --git a/docs/src/main/mdoc/typeclasses/foldable.md b/docs/typeclasses/foldable.md
similarity index 97%
rename from docs/src/main/mdoc/typeclasses/foldable.md
rename to docs/typeclasses/foldable.md
index 87dc2d9b5b..9078541731 100644
--- a/docs/src/main/mdoc/typeclasses/foldable.md
+++ b/docs/typeclasses/foldable.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Foldable"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Foldable.scala"
-scaladoc: "#cats.Foldable"
----
 # Foldable
 
 Foldable type class instances can be defined for data structures that can be 
diff --git a/docs/src/main/mdoc/typeclasses/functor.md b/docs/typeclasses/functor.md
similarity index 96%
rename from docs/src/main/mdoc/typeclasses/functor.md
rename to docs/typeclasses/functor.md
index 3172caf9ac..4b2c0e2445 100644
--- a/docs/src/main/mdoc/typeclasses/functor.md
+++ b/docs/typeclasses/functor.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Functor"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Functor.scala"
-scaladoc: "#cats.Functor"
----
 # Functor
 `Functor` is a type class that abstracts over type constructors that can be `map`'ed over. Examples of such
 type constructors are `List`, `Option`, and `Future`.
diff --git a/docs/src/main/mdoc/typeclasses/invariant.md b/docs/typeclasses/invariant.md
similarity index 88%
rename from docs/src/main/mdoc/typeclasses/invariant.md
rename to docs/typeclasses/invariant.md
index c9f7be4727..8b51262159 100644
--- a/docs/src/main/mdoc/typeclasses/invariant.md
+++ b/docs/typeclasses/invariant.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Invariant"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Invariant.scala"
-scaladoc: "#cats.Invariant"
----
 # Invariant
 
 The `Invariant` type class is for functors that define an `imap`
@@ -14,10 +7,10 @@ function with the following type:
 def imap[A, B](fa: F[A])(f: A => B)(g: B => A): F[B]
 ```
 
-Every covariant (as well as [contravariant](contravariant.html)) functor gives rise to an invariant
+Every covariant (as well as [contravariant](contravariant.md)) functor gives rise to an invariant
 functor, by ignoring the `g` (or in case of contravariance, `f`) function.
 
-Examples for instances of `Invariant` are [`Semigroup`](semigroup.html) and [`Monoid`](monoid.html), in
+Examples for instances of `Invariant` are [`Semigroup`](semigroup.md) and [`Monoid`](monoid.md), in
 the following we will explain why this is the case using `Semigroup`, the
 reasoning for `Monoid` is analogous.
 
@@ -29,7 +22,7 @@ timestamp.  Let's say that we want to create a `Semigroup[Date]`, by
 
 ### Semigroup does not form a covariant functor
 
-If `Semigroup` had an instance for the standard covariant [`Functor`](functor.html)
+If `Semigroup` had an instance for the standard covariant [`Functor`](functor.md)
 type class, we could use `map` to apply a function `longToDate`:
 
 ```scala mdoc:silent
@@ -47,7 +40,7 @@ like we can't have an `Functor` instance for `Semigroup`.
 ### Semigroup does not form a contravariant functor
 
 On the other side, if `Semigroup` would form a *contravariant* functor
-by having an instance for [`Contravariant`](contravariant.html), we could make use of
+by having an instance for [`Contravariant`](contravariant.md), we could make use of
 `contramap` to apply a function `dateToLong`:
 
 ```scala mdoc:silent
diff --git a/docs/src/main/mdoc/typeclasses/invariantmonoidal.md b/docs/typeclasses/invariantmonoidal.md
similarity index 89%
rename from docs/src/main/mdoc/typeclasses/invariantmonoidal.md
rename to docs/typeclasses/invariantmonoidal.md
index 712dfdbc01..792189aa27 100644
--- a/docs/src/main/mdoc/typeclasses/invariantmonoidal.md
+++ b/docs/typeclasses/invariantmonoidal.md
@@ -1,13 +1,6 @@
----
-layout: docs
-title:  "InvariantMonoidal"
-section: "typeclasses"
-source: "https://github.com/non/cats/blob/main/core/src/main/scala/cats/InvariantMonoidal.scala"
-scaladoc: "#cats.InvariantMonoidal"
----
 # Invariant Monoidal
 
-`InvariantMonoidal` combines [`Invariant`](invariant.html) and `Semigroupal` with the addition of a `unit` methods, defined in isolation the `InvariantMonoidal` type class could be defined as follows:
+`InvariantMonoidal` combines [`Invariant`](invariant.md) and `Semigroupal` with the addition of a `unit` methods, defined in isolation the `InvariantMonoidal` type class could be defined as follows:
 
 ```scala mdoc:compile-only
 trait InvariantMonoidal[F[_]] {
@@ -17,13 +10,13 @@ trait InvariantMonoidal[F[_]] {
 }
 ```
 
-Practical uses of `InvariantMonoidal` appear in the context of codecs, that is interfaces to capture both serialization and deserialization for a given format. Another notable examples is [`Semigroup`](semigroup.html).
+Practical uses of `InvariantMonoidal` appear in the context of codecs, that is interfaces to capture both serialization and deserialization for a given format. Another notable examples is [`Semigroup`](semigroup.md).
 
 This tutorial first shows how `Semigroup` is `InvariantMonoidal`, and how this can be used create `Semigroup` instances by combining other `Semigroup` instances. Secondly, we present a complete example of `Codec` for the CSV format, and show how it is `InvariantMonoidal`. Lastly, we present an alternative definition of `InvariantMonoidal` as a generalization of `Invariant`, and show that both definitions are equivalent.
 
 # `Semigroup` is `InvariantMonoidal`
 
-As explained in the [`Invariant` tutorial](invariant.html), `Semigroup` forms an invariant functor. Indeed, given a `Semigroup[A]` and two functions `A => B` and `B => A`, one can construct a `Semigroup[B]` by transforming two values from type `B` to type `A`, combining these using the `Semigroup[A]`, and transforming the result back to type `B`. Thus to define an `InvariantMonoidal[Semigroup]` we need implementations for `unit` and `product`.
+As explained in the [`Invariant` tutorial](invariant.md), `Semigroup` forms an invariant functor. Indeed, given a `Semigroup[A]` and two functions `A => B` and `B => A`, one can construct a `Semigroup[B]` by transforming two values from type `B` to type `A`, combining these using the `Semigroup[A]`, and transforming the result back to type `B`. Thus to define an `InvariantMonoidal[Semigroup]` we need implementations for `unit` and `product`.
 
 To construct a `Semigroup` from a single value, we can define a trivial `Semigroup` with a combine that always outputs the given value. A `Semigroup[(A, B)]` can be obtained from two `Semigroup`s for type `A` and `B` by deconstructing two pairs into elements of type `A` and `B`, combining these element using their respective `Semigroup`s, and reconstructing a pair from the results:
 
@@ -189,7 +182,7 @@ fooCodec.read(fooCodec.write(foo)) == ((Some(foo), List()))
 
 # `InvariantMonoidal` as a generalization of `Invariant`
 
-To better understand the motivations behind the `InvariantMonoidal` type class, we show how one could naturally arrive to its definition by generalizing the concept of `Invariant` functor. This reflection is analogous to the one presented in [Free Applicative Functors by Paolo Capriotti](http://www.paolocapriotti.com/assets/applicative.pdf) to show how [`Applicative`](applicative.html) are a generalization of [`Functor`](functor.html).
+To better understand the motivations behind the `InvariantMonoidal` type class, we show how one could naturally arrive to its definition by generalizing the concept of `Invariant` functor. This reflection is analogous to the one presented in [Free Applicative Functors by Paolo Capriotti](http://www.paolocapriotti.com/assets/applicative.pdf) to show how [`Applicative`](applicative.md) are a generalization of [`Functor`](functor.md).
 
 Given an `Invariant[F]` instance for a certain *context* `F[_]`, its `imap` method gives a way to lift two *unary* pure functions `A => B` and `B => A` into *contextualized* functions `F[A] => F[B]`. But what about functions of other arity?
 
diff --git a/docs/src/main/mdoc/typeclasses/lawtesting.md b/docs/typeclasses/lawtesting.md
similarity index 97%
rename from docs/src/main/mdoc/typeclasses/lawtesting.md
rename to docs/typeclasses/lawtesting.md
index e796b7f93e..b853d5fb18 100644
--- a/docs/src/main/mdoc/typeclasses/lawtesting.md
+++ b/docs/typeclasses/lawtesting.md
@@ -1,12 +1,6 @@
----
-layout: docs
-title:  "Law Testing"
-section: "typeclasses"
----
-
 # Law testing
 
-[Laws](https://typelevel.org/cats/typeclasses.html#laws) are an important part of cats.
+[Laws](../typeclasses.md#laws) are an important part of cats.
 Cats uses [discipline](https://github.com/typelevel/discipline) to define type class laws and
 the [ScalaCheck](https://github.com/rickynils/scalacheck) tests based on them.
 
diff --git a/docs/src/main/mdoc/typeclasses/monad.md b/docs/typeclasses/monad.md
similarity index 93%
rename from docs/src/main/mdoc/typeclasses/monad.md
rename to docs/typeclasses/monad.md
index 505cca2862..3ac071063e 100644
--- a/docs/src/main/mdoc/typeclasses/monad.md
+++ b/docs/typeclasses/monad.md
@@ -1,13 +1,6 @@
----
-layout: docs
-title:  "Monad"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Monad.scala"
-scaladoc: "#cats.Monad"
----
 # Monad
 
-`Monad` extends the [`Applicative`](applicative.html) type class with a
+`Monad` extends the [`Applicative`](applicative.md) type class with a
 new function `flatten`. Flatten takes a value in a nested context (eg.
 `F[F[A]]` where F is the context) and "joins" the contexts together so
 that we have a single context (ie. `F[A]`).
@@ -106,7 +99,7 @@ implicit val optionMonad = new Monad[Option] {
 }
 ```
 
-More discussion about `tailRecM` can be found in the [FAQ](../faq.html#tailrecm).
+More discussion about `tailRecM` can be found in the [FAQ](../faq.md#what-is-tailrecm).
 
 
 ### ifM
@@ -122,7 +115,7 @@ Monad[List].ifM(List(true, false, true))(ifTrue = List(1, 2), ifFalse = List(3,
 ```
 
 ### Composition
-Unlike [`Functor`s](functor.html) and [`Applicative`s](applicative.html),
+Unlike [`Functor`s](functor.md) and [`Applicative`s](applicative.md),
 not all `Monad`s compose. This means that even if `M[_]` and `N[_]` are
 both `Monad`s, `M[N[_]]` is not guaranteed to be a `Monad`.
 
@@ -163,7 +156,7 @@ implicit def optionTMonad[F[_]](implicit F: Monad[F]): Monad[OptionT[F, *]] = {
 
 This sort of construction is called a monad transformer.
 
-Cats has an [`OptionT`](../datatypes/optiont.html) monad transformer, which adds a lot of useful functions to the simple implementation above.
+Cats has an [`OptionT`](../datatypes/optiont.md) monad transformer, which adds a lot of useful functions to the simple implementation above.
 
 ## FlatMap - a weakened Monad
 A closely related type class is `FlatMap` which is identical to `Monad`, minus the `pure`
diff --git a/docs/src/main/mdoc/typeclasses/monoid.md b/docs/typeclasses/monoid.md
similarity index 95%
rename from docs/src/main/mdoc/typeclasses/monoid.md
rename to docs/typeclasses/monoid.md
index 5b84ec83fc..1cfb556da1 100644
--- a/docs/src/main/mdoc/typeclasses/monoid.md
+++ b/docs/typeclasses/monoid.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Monoid"
-section: "typeclasses"
-source: "kernel/src/main/scala/cats/kernel/Monoid.scala"
-scaladoc: "#cats.kernel.Monoid"
----
 # Monoid
 
 `Monoid` extends the power of `Semigroup` by providing an additional `empty` value.
diff --git a/docs/src/main/mdoc/typeclasses/monoidk.md b/docs/typeclasses/monoidk.md
similarity index 87%
rename from docs/src/main/mdoc/typeclasses/monoidk.md
rename to docs/typeclasses/monoidk.md
index cc7df1c0d2..aed530f46c 100644
--- a/docs/src/main/mdoc/typeclasses/monoidk.md
+++ b/docs/typeclasses/monoidk.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "MonoidK"
-section: "typeclasses"
-source: "core/src/main/scala/cats/MonoidK.scala"
-scaladoc: "#cats.MonoidK"
----
 # MonoidK
 
 `MonoidK` is a universal monoid which operates on type constructors of one argument.
@@ -58,4 +51,4 @@ MonoidK[List].combineK(List("hello", "world"), List("goodbye", "moon"))
 MonoidK[List].combineK(List(1, 2), List(3, 4))
 ```
 
-`MonoidK` extends [`SemigroupK`](semigroupk.html), so take a look at the `SemigroupK` documentation for more examples.
+`MonoidK` extends [`SemigroupK`](semigroupk.md), so take a look at the `SemigroupK` documentation for more examples.
diff --git a/docs/src/main/mdoc/typeclasses/nonemptytraverse.md b/docs/typeclasses/nonemptytraverse.md
similarity index 80%
rename from docs/src/main/mdoc/typeclasses/nonemptytraverse.md
rename to docs/typeclasses/nonemptytraverse.md
index e5421251b4..bcf74e1599 100644
--- a/docs/src/main/mdoc/typeclasses/nonemptytraverse.md
+++ b/docs/typeclasses/nonemptytraverse.md
@@ -1,14 +1,6 @@
----
-layout: docs
-title:  "NonEmptyTraverse"
-section: "typeclasses"
-source: "core/src/main/scala/cats/NonEmptyTraverse.scala"
-scaladoc: "#cats.NonEmptyTraverse"
----
-
 # NonEmptyTraverse
 
-`NonEmptyTraverse` is a non-empty version of the [Traverse](traverse.html) type class, just like [Reducible](reducible.html) is a non-empty version of [Foldable](foldable.html).
+`NonEmptyTraverse` is a non-empty version of the [Traverse](traverse.md) type class, just like [Reducible](reducible.md) is a non-empty version of [Foldable](foldable.md).
 As such, it extends both `Reducible` and `Traverse` in the type class hierarchy.
 It provides the `nonEmptyTraverse` and `nonEmptySequence` methods that require an instance of `Apply` instead of `Applicative`:
 
@@ -18,7 +10,7 @@ def nonEmptyTraverse[G[_]: Apply, A, B](fa: F[A])(f: A => G[B]): G[F[B]]
 def nonEmptySequence[G[_]: Apply, A](fga: F[G[A]]): G[F[A]]
 ```
 
-In the [Applicative tutorial](applicative.html) we learned of `Apply` as a weakened `Applicative` lacking the `pure` method.
+In the [Applicative tutorial](applicative.md) we learned of `Apply` as a weakened `Applicative` lacking the `pure` method.
 One example type lacking an `Applicative` instance is `Map[K, *]`, it's impossible to implement a `pure` method for it.
 
 Knowing this, we can make use of `NonEmptyTraverse`, to traverse over a sequence of `Map`s.
diff --git a/docs/src/main/mdoc/typeclasses/parallel.dot b/docs/typeclasses/parallel.dot
similarity index 100%
rename from docs/src/main/mdoc/typeclasses/parallel.dot
rename to docs/typeclasses/parallel.dot
diff --git a/docs/src/main/mdoc/typeclasses/parallel.md b/docs/typeclasses/parallel.md
similarity index 95%
rename from docs/src/main/mdoc/typeclasses/parallel.md
rename to docs/typeclasses/parallel.md
index 0d7444d495..52b618b9b9 100644
--- a/docs/src/main/mdoc/typeclasses/parallel.md
+++ b/docs/typeclasses/parallel.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Parallel"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Parallel.scala"
-scaladoc: "#cats.Parallel"
----
 # Parallel
 
 When browsing the various `Monads` included in Cats,
@@ -76,7 +69,7 @@ Where `M[_]` has to have an instance of `Monad` and `F[_]` an instance of `Appli
 
 ![The `Parallel` typeclass transforms between `Monad` `M[_]` and `Applicative` `F[_]`.](../img/parallel.png)
 
-Recall that `~>` is just an alias for [`FunctionK`](../datatypes/functionk.html).
+Recall that `~>` is just an alias for [`FunctionK`](../datatypes/functionk.md).
 This allows us to get rid of most of our boilerplate from earlier:
 
 ```scala mdoc:nest
@@ -119,4 +112,4 @@ An example for one of these is `ZipList`.
 
 With instances of `NonEmptyParallel` it's not possible to use the `parTraverse` and `parSequence` functions,
 but we can still use `parMapN` and also `parNonEmptyTraverse` and `parNonEmptySequence`,
-which are analogous to the functions defined on [`NonEmptyTraverse`](nonemptytraverse.html).
+which are analogous to the functions defined on [`NonEmptyTraverse`](nonemptytraverse.md).
diff --git a/docs/src/main/mdoc/typeclasses/reducible.md b/docs/typeclasses/reducible.md
similarity index 95%
rename from docs/src/main/mdoc/typeclasses/reducible.md
rename to docs/typeclasses/reducible.md
index 22575318cb..6bcc516e58 100644
--- a/docs/src/main/mdoc/typeclasses/reducible.md
+++ b/docs/typeclasses/reducible.md
@@ -1,11 +1,3 @@
----
-layout: docs
-title:  "Reducible"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Reducible.scala"
-scaladoc: "#cats.Reducible"
----
-
 # Reducible
 
 `Reducible` extends the `Foldable` type class with additional `reduce` methods.
diff --git a/docs/src/main/mdoc/typeclasses/semigroup.md b/docs/typeclasses/semigroup.md
similarity index 96%
rename from docs/src/main/mdoc/typeclasses/semigroup.md
rename to docs/typeclasses/semigroup.md
index a982df2854..f06e8bfb0c 100644
--- a/docs/src/main/mdoc/typeclasses/semigroup.md
+++ b/docs/typeclasses/semigroup.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Semigroup"
-section: "typeclasses"
-source: "kernel/src/main/scala/cats/kernel/Semigroup.scala"
-scaladoc: "#cats.kernel.Semigroup"
----
 # Semigroup
 
 If a type `A` can form a `Semigroup` it has an **associative** binary operation.
diff --git a/docs/src/main/mdoc/typeclasses/semigroupk.md b/docs/typeclasses/semigroupk.md
similarity index 94%
rename from docs/src/main/mdoc/typeclasses/semigroupk.md
rename to docs/typeclasses/semigroupk.md
index ff5a027c5a..c4587c00ab 100644
--- a/docs/src/main/mdoc/typeclasses/semigroupk.md
+++ b/docs/typeclasses/semigroupk.md
@@ -1,13 +1,6 @@
----
-layout: docs
-title:  "SemigroupK"
-section: "typeclasses"
-source: "core/src/main/scala/cats/SemigroupK.scala"
-scaladoc: "#cats.SemigroupK"
----
 # SemigroupK
 
-`SemigroupK` has a very similar structure to [`Semigroup`](semigroup.html), the difference
+`SemigroupK` has a very similar structure to [`Semigroup`](semigroup.md), the difference
 is that `SemigroupK` operates on type constructors of one argument. So, for
 example, whereas you can find a `Semigroup` for types which are fully
 specified like `Int` or `List[Int]` or `Option[Int]`, you will find
diff --git a/docs/src/main/mdoc/typeclasses/show.md b/docs/typeclasses/show.md
similarity index 94%
rename from docs/src/main/mdoc/typeclasses/show.md
rename to docs/typeclasses/show.md
index c2b5eecf40..349d7d434c 100644
--- a/docs/src/main/mdoc/typeclasses/show.md
+++ b/docs/typeclasses/show.md
@@ -1,10 +1,3 @@
----
-layout: docs
-title:  "Show"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Show.scala"
-scaladoc: "#cats.Show"
----
 # Show
 
 Show is an alternative to the Java `toString` method.
diff --git a/docs/src/main/mdoc/typeclasses/traverse.md b/docs/typeclasses/traverse.md
similarity index 96%
rename from docs/src/main/mdoc/typeclasses/traverse.md
rename to docs/typeclasses/traverse.md
index 0457ed0d23..44973e60fb 100644
--- a/docs/src/main/mdoc/typeclasses/traverse.md
+++ b/docs/typeclasses/traverse.md
@@ -1,11 +1,3 @@
----
-layout: docs
-title:  "Traverse"
-section: "typeclasses"
-source: "core/src/main/scala/cats/Traverse.scala"
-scaladoc: "#cats.Traverse"
----
-
 # Traverse
 
 In the `Applicative` tutorial we saw a more polymorphic version of the standard library
@@ -160,7 +152,7 @@ def foldMap[F[_]: Traverse, A, B: Monoid](fa: F[A])(f: A => B): B =
   Traverse[F].traverse[Const[B, *], A, B](fa)(a => Const(f(a))).getConst
 ```
 
-This works because `Const[B, *]` is an `Applicative` if `B` is a `Monoid`, as explained in [the documentation of `Const`](../datatypes/const.html#example-2-traverse).
+This works because `Const[B, *]` is an `Applicative` if `B` is a `Monoid`, as explained in [the documentation of `Const`](../datatypes/const.md#example-2-traverse).
 
 ## Further Reading
 
diff --git a/docs/src/main/mdoc/typelevelEcosystem.md b/docs/typelevelEcosystem.md
similarity index 98%
rename from docs/src/main/mdoc/typelevelEcosystem.md
rename to docs/typelevelEcosystem.md
index 6ac8f0710a..d6b7ae58b4 100644
--- a/docs/src/main/mdoc/typelevelEcosystem.md
+++ b/docs/typelevelEcosystem.md
@@ -1,20 +1,3 @@
----
-layout: page
-title:  "Typelevel Ecosystem"
-section: ""
-position: <!-- 40 -->
----
-
-<!-- Links References -->
-[Cats]: https://typelevel.org/cats/ "Cats"
-[Fs2]: https://fs2.io "Fs2"
-[Kafka]: https://kafka.apache.org/ "Kafka"
-[Monix]: https://monix.io/ "Monix"
-[Mules]: https://github.com/davenverse/mules/ "Mules"
-[Cats Effect]: https://typelevel.org/cats-effect/ "Cats Effect"
-[Circe]: https://circe.github.io/circe/ "Circe"
-[Log4Cats]: https://typelevel.org/log4cats/ "Log4Cats"
-
 # Typelevel Ecosystem #
 
 By sharing the same set of type classes, instances and data types provided by Cats, projects can speak the same “Cats language”, and integrate with each other with ease.
@@ -46,7 +29,7 @@ Here you can find a comprehensive list of libraries and projects related to Type
 | [circuit](https://davenverse.github.io/circuit/)                                                                           | Functional Circuit Breaker implementation.                                                                                                                                                                                                                                                                                                                                                                                                                 |
 | [ciris](https://cir.is/)                                                                                                   | Lightweight, extensible, and validated configuration loading in Scala.                                                                                                                                                                                                                                                                                                                                                                                     |
 | [console4cats](https://console4cats.profunktor.dev/)                                                                       | Console I/O for [Cats Effect][Cats Effect].                                                                                                                                                                                                                                                                                                                                                                                                                |
-| [cormorant]https://davenverse.github.io/cormorant/)                                                                        | CSV handling library for FP.                                                                                                                                                                                                                                                                                                                                                                                                                               |
+| [cormorant](https://davenverse.github.io/cormorant/)                                                                        | CSV handling library for FP.                                                                                                                                                                                                                                                                                                                                                                                                                               |
 | [coulomb-cats](https://github.com/erikerlandson/coulomb)                                                                   | [Cats][Cats] typeclass instances for coulomb Quantity.                                                                                                                                                                                                                                                                                                                                                                                                     |
 | [decline](https://ben.kirw.in/decline/)                                                                                    | A composable command-line parser.                                                                                                                                                                                                                                                                                                                                                                                                                          |
 | [doobie-pool](https://christopherdavenport.github.io/doobie-pool/)                                                         | Doobie Pooling Mechanism in Pure FP.                                                                                                                                                                                                                                                                                                                                                                                                                       |
@@ -100,7 +83,7 @@ Here you can find a comprehensive list of libraries and projects related to Type
 | [hammock](https://hammock.pepegar.com/)                                                                                    | Purely functional HTTP client.                                                                                                                                                                                                                                                                                                                                                                                                                             |
 | [henkan](https://github.com/kailuowang/henkan)                                                                             | Type safe conversion between case class instances with similar fields.                                                                                                                                                                                                                                                                                                                                                                                     |
 | [http4s](https://http4s.org/)                                                                                              | Minimal, idiomatic Scala interface for HTTP services using [Fs2][Fs2].                                                                                                                                                                                                                                                                                                                                                                                     |
-| [iota](https://github.com/frees-io/iota)                                                                                   | Fast [co]product types with a clean syntax.                                                                                                                                                                                                                                                                                                                                                                                                                |
+| [iota](https://github.com/frees-io/iota)                                                                                   | Fast (co)product types with a clean syntax.                                                                                                                                                                                                                                                                                                                                                                                                                |
 | [itto-csv](https://github.com/gekomad/itto-csv)                                                                            | Pure functional library for working with CSV.                                                                                                                                                                                                                                                                                                                                                                                                              |
 | [jms4s](https://fpinbo.dev/jms4s)                                                                                          | A functional wrapper for jms                                                                                                                                                                                                                                                                                                                                                                                                                               |
 | [kafka4s](https://banno.github.io/kafka4s/)                                                                                | Functional programming with [Kafka][Kafka] and Scala.                                                                                                                                                                                                                                                                                                                                                                                                      |
@@ -178,18 +161,28 @@ Here you can find a comprehensive list of libraries and projects related to Type
 | [whale-tail](https://github.com/davenverse/whale-tail)                                                                     | Docker Daemon Integration.                                                                                                                                                                                                                                                                                                                                                                                                                                 |
 |                                                                                                                            |                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
 
-Your project talks Cats too? [Submit a PR to add it here!](https://github.com/typelevel/cats/edit/main/docs/src/main/mdoc/typelevelEcosystem.md)
+Your project talks Cats too? [Submit a PR to add it here!](https://github.com/typelevel/cats/edit/main/docs/typelevelEcosystem.md)
 
-*The full-size [Cats logo](https://typelevel.org/cats/img/cats-logo.png) is available for use for Cats related projects, contents, souvenirs, etc.*
+*The full-size [Cats logo](img/cats-logo.png) is available for use for Cats related projects, contents, souvenirs, etc.*
 
-*We offer a [Cats Friendly Badge](https://typelevel.org/cats/img/cats-badge.svg) to let others know your project works with Cats!*
+*We offer a [Cats Friendly Badge](img/cats-badge.svg) to let others know your project works with Cats!*
 
-![Cats Friendly Badge](https://typelevel.org/cats/img/cats-badge-normal.png)
+![Cats Friendly Badge](img/cats-badge-normal.png)
 
 Below are quick html and markdown snippets to use the badge in your own project.
 ```html
-<a href="https://typelevel.org/cats/"><img src="https://typelevel.org/cats/img/cats-badge-tiny.png" alt="Cats friendly" /></a>
+<a href=""><img src="https://typelevel.org/cats/img/cats-badge-tiny.png" alt="Cats friendly" /></a>
 ```
 ```markdown
 ![Cats Friendly Badge](https://typelevel.org/cats/img/cats-badge-tiny.png)
 ```
+
+[Cats]: index.md "Cats"
+[Fs2]: https://fs2.io "Fs2"
+[Kafka]: https://kafka.apache.org/ "Kafka"
+[Monix]: https://monix.io/ "Monix"
+[Mules]: https://github.com/davenverse/mules/ "Mules"
+[Cats Effect]: https://typelevel.org/cats-effect/ "Cats Effect"
+[Circe]: https://circe.github.io/circe/ "Circe"
+[Log4Cats]: https://typelevel.org/log4cats/ "Log4Cats"
+
diff --git a/free/src/main/scala-2.12/cats/free/FreeStructuralInstances.scala b/free/src/main/scala-2.12/cats/free/FreeStructuralInstances.scala
index 0e90540945..8d80fa9393 100644
--- a/free/src/main/scala-2.12/cats/free/FreeStructuralInstances.scala
+++ b/free/src/main/scala-2.12/cats/free/FreeStructuralInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 private trait FreeStructuralInstances
diff --git a/free/src/main/scala-2.13+/cats/free/FreeStructuralInstances.scala b/free/src/main/scala-2.13+/cats/free/FreeStructuralInstances.scala
index b88676a2d4..e5e5f05c2f 100644
--- a/free/src/main/scala-2.13+/cats/free/FreeStructuralInstances.scala
+++ b/free/src/main/scala-2.13+/cats/free/FreeStructuralInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package free
 
diff --git a/free/src/main/scala-2.x/cats/free/FreeFoldStep.scala b/free/src/main/scala-2/cats/free/FreeFoldStep.scala
similarity index 53%
rename from free/src/main/scala-2.x/cats/free/FreeFoldStep.scala
rename to free/src/main/scala-2/cats/free/FreeFoldStep.scala
index 4dfcf283e8..dccf6b246f 100644
--- a/free/src/main/scala-2.x/cats/free/FreeFoldStep.scala
+++ b/free/src/main/scala-2/cats/free/FreeFoldStep.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import Free.{FlatMapped, Pure, Suspend}
diff --git a/free/src/main/scala-3.x/cats/free/FreeFoldStep.scala b/free/src/main/scala-3/cats/free/FreeFoldStep.scala
similarity index 54%
rename from free/src/main/scala-3.x/cats/free/FreeFoldStep.scala
rename to free/src/main/scala-3/cats/free/FreeFoldStep.scala
index a5211f58c3..5aa6e44c8d 100644
--- a/free/src/main/scala-3.x/cats/free/FreeFoldStep.scala
+++ b/free/src/main/scala-3/cats/free/FreeFoldStep.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import Free.{FlatMapped, Pure, Suspend}
diff --git a/free/src/main/scala/cats/free/Cofree.scala b/free/src/main/scala/cats/free/Cofree.scala
index d540549186..4653be4315 100644
--- a/free/src/main/scala/cats/free/Cofree.scala
+++ b/free/src/main/scala/cats/free/Cofree.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package free
 
diff --git a/free/src/main/scala/cats/free/ContravariantCoyoneda.scala b/free/src/main/scala/cats/free/ContravariantCoyoneda.scala
index b862facb44..e122fb283e 100644
--- a/free/src/main/scala/cats/free/ContravariantCoyoneda.scala
+++ b/free/src/main/scala/cats/free/ContravariantCoyoneda.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package free
 
diff --git a/free/src/main/scala/cats/free/Coyoneda.scala b/free/src/main/scala/cats/free/Coyoneda.scala
index 1645ae8285..49679c4e1f 100644
--- a/free/src/main/scala/cats/free/Coyoneda.scala
+++ b/free/src/main/scala/cats/free/Coyoneda.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package free
 
diff --git a/free/src/main/scala/cats/free/Free.scala b/free/src/main/scala/cats/free/Free.scala
index 32b6b7f520..7cd441df3e 100644
--- a/free/src/main/scala/cats/free/Free.scala
+++ b/free/src/main/scala/cats/free/Free.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package free
 
diff --git a/free/src/main/scala/cats/free/FreeApplicative.scala b/free/src/main/scala/cats/free/FreeApplicative.scala
index da06d61b4e..2489399335 100644
--- a/free/src/main/scala/cats/free/FreeApplicative.scala
+++ b/free/src/main/scala/cats/free/FreeApplicative.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package free
 
diff --git a/free/src/main/scala/cats/free/FreeInvariantMonoidal.scala b/free/src/main/scala/cats/free/FreeInvariantMonoidal.scala
index 53f56231b3..a7fd4912c1 100644
--- a/free/src/main/scala/cats/free/FreeInvariantMonoidal.scala
+++ b/free/src/main/scala/cats/free/FreeInvariantMonoidal.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package free
 
diff --git a/free/src/main/scala/cats/free/FreeT.scala b/free/src/main/scala/cats/free/FreeT.scala
index f38c8f966e..bc1c3bc7c3 100644
--- a/free/src/main/scala/cats/free/FreeT.scala
+++ b/free/src/main/scala/cats/free/FreeT.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package free
 
diff --git a/free/src/main/scala/cats/free/InvariantCoyoneda.scala b/free/src/main/scala/cats/free/InvariantCoyoneda.scala
index fc76efae95..a7d97f9501 100644
--- a/free/src/main/scala/cats/free/InvariantCoyoneda.scala
+++ b/free/src/main/scala/cats/free/InvariantCoyoneda.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package free
 
diff --git a/free/src/main/scala/cats/free/Trampoline.scala b/free/src/main/scala/cats/free/Trampoline.scala
index 16fbc7059a..540ad97415 100644
--- a/free/src/main/scala/cats/free/Trampoline.scala
+++ b/free/src/main/scala/cats/free/Trampoline.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package free
 
diff --git a/free/src/main/scala/cats/free/Yoneda.scala b/free/src/main/scala/cats/free/Yoneda.scala
index 472ceaf53f..b8d702ff8e 100644
--- a/free/src/main/scala/cats/free/Yoneda.scala
+++ b/free/src/main/scala/cats/free/Yoneda.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package free
 
diff --git a/free/src/main/scala/cats/free/package.scala b/free/src/main/scala/cats/free/package.scala
index fae8025e0b..8ab682bf35 100644
--- a/free/src/main/scala/cats/free/package.scala
+++ b/free/src/main/scala/cats/free/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 package object free {
diff --git a/free/src/test/scala-2.13+/cats/free/FreeStructuralSuite.scala b/free/src/test/scala-2.13+/cats/free/FreeStructuralSuite.scala
index ec93681a7d..33a2196737 100644
--- a/free/src/test/scala-2.13+/cats/free/FreeStructuralSuite.scala
+++ b/free/src/test/scala-2.13+/cats/free/FreeStructuralSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import cats.{Applicative, Eq, Eval, Functor, Show, Traverse}
diff --git a/free/src/test/scala/cats/free/CofreeSuite.scala b/free/src/test/scala/cats/free/CofreeSuite.scala
index 671a8dd5f9..d258323f53 100644
--- a/free/src/test/scala/cats/free/CofreeSuite.scala
+++ b/free/src/test/scala/cats/free/CofreeSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import cats.{~>, Comonad, Eval, Id, Reducible, Traverse}
diff --git a/free/src/test/scala/cats/free/ContravariantCoyonedaSuite.scala b/free/src/test/scala/cats/free/ContravariantCoyonedaSuite.scala
index b462a7e824..aa9cb6a1e8 100644
--- a/free/src/test/scala/cats/free/ContravariantCoyonedaSuite.scala
+++ b/free/src/test/scala/cats/free/ContravariantCoyonedaSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import cats.{~>, Contravariant}
diff --git a/free/src/test/scala/cats/free/CoyonedaSuite.scala b/free/src/test/scala/cats/free/CoyonedaSuite.scala
index 6686da46f6..cc5e6c7463 100644
--- a/free/src/test/scala/cats/free/CoyonedaSuite.scala
+++ b/free/src/test/scala/cats/free/CoyonedaSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import cats.Functor
diff --git a/free/src/test/scala/cats/free/FreeApplicativeSuite.scala b/free/src/test/scala/cats/free/FreeApplicativeSuite.scala
index b4c12260a7..7d38b2ad64 100644
--- a/free/src/test/scala/cats/free/FreeApplicativeSuite.scala
+++ b/free/src/test/scala/cats/free/FreeApplicativeSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import cats.{~>, Applicative, Apply, Id}
diff --git a/free/src/test/scala/cats/free/FreeInvariantMonoidalSuite.scala b/free/src/test/scala/cats/free/FreeInvariantMonoidalSuite.scala
index d26223106d..de5244fc3a 100644
--- a/free/src/test/scala/cats/free/FreeInvariantMonoidalSuite.scala
+++ b/free/src/test/scala/cats/free/FreeInvariantMonoidalSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import cats.{Id, InvariantMonoidal}
diff --git a/free/src/test/scala/cats/free/FreeSuite.scala b/free/src/test/scala/cats/free/FreeSuite.scala
index ed180dc7d1..2c016112b0 100644
--- a/free/src/test/scala/cats/free/FreeSuite.scala
+++ b/free/src/test/scala/cats/free/FreeSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import cats._
diff --git a/free/src/test/scala/cats/free/FreeTSuite.scala b/free/src/test/scala/cats/free/FreeTSuite.scala
index 88fdbedb03..8d2c16cc7c 100644
--- a/free/src/test/scala/cats/free/FreeTSuite.scala
+++ b/free/src/test/scala/cats/free/FreeTSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import cats._
diff --git a/free/src/test/scala/cats/free/InvariantCoyonedaSuite.scala b/free/src/test/scala/cats/free/InvariantCoyonedaSuite.scala
index 83b3a6c4ac..c6e16bdfb5 100644
--- a/free/src/test/scala/cats/free/InvariantCoyonedaSuite.scala
+++ b/free/src/test/scala/cats/free/InvariantCoyonedaSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import cats.~>
diff --git a/free/src/test/scala/cats/free/YonedaSuite.scala b/free/src/test/scala/cats/free/YonedaSuite.scala
index 21ee77352d..e66dc178c6 100644
--- a/free/src/test/scala/cats/free/YonedaSuite.scala
+++ b/free/src/test/scala/cats/free/YonedaSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.free
 
 import cats.Functor
diff --git a/hydra-metrics-service.conf b/hydra-metrics-service.conf
deleted file mode 100644
index 4fe1e4025c..0000000000
--- a/hydra-metrics-service.conf
+++ /dev/null
@@ -1,17 +0,0 @@
-# mandatory: include the built-in settings tree
-include "application.conf"
-
-triplequote.dashboard.client {
-  # Optional user ID override
-  # metricsUserId = ${user.name}
-
-  # Optional host ID (e.g. hostname)
-  # metricsHostId = ""
-
-  # Server address to push the metrics data
-  serverUrl = "https://dashboard.triplequote.com/metrics"
-
-  # Optional HTTP basic authentication
-  clientUsername = ${?HYDRA_METRICS_USERNAME}
-  clientPassword = ${?HYDRA_METRICS_PASSWORD}
-}
diff --git a/kernel-laws/js/src/main/scala/cats/platform/Platform.scala b/kernel-laws/js/src/main/scala/cats/platform/Platform.scala
index 7a6c16c9e3..083e897ce9 100644
--- a/kernel-laws/js/src/main/scala/cats/platform/Platform.scala
+++ b/kernel-laws/js/src/main/scala/cats/platform/Platform.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.platform
 
 private[cats] object Platform {
diff --git a/kernel-laws/jvm/src/main/scala/cats/platform/Platform.scala b/kernel-laws/jvm/src/main/scala/cats/platform/Platform.scala
index 7a208487e9..7387a5e307 100644
--- a/kernel-laws/jvm/src/main/scala/cats/platform/Platform.scala
+++ b/kernel-laws/jvm/src/main/scala/cats/platform/Platform.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.platform
 
 private[cats] object Platform {
diff --git a/kernel-laws/native/src/main/scala/cats/platform/Platform.scala b/kernel-laws/native/src/main/scala/cats/platform/Platform.scala
index 699cdd6da2..67b4b5cb86 100644
--- a/kernel-laws/native/src/main/scala/cats/platform/Platform.scala
+++ b/kernel-laws/native/src/main/scala/cats/platform/Platform.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.platform
 
 private[cats] object Platform {
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/BandLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/BandLaws.scala
index 167f2659ce..3cacd818bf 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/BandLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/BandLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.kernel.Band
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/BoundedLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/BoundedLaws.scala
index f3bf97acef..41bb49252f 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/BoundedLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/BoundedLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.kernel.{LowerBounded, PartialOrder, UpperBounded}
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/BoundedSemilatticeLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/BoundedSemilatticeLaws.scala
index 92963f3c24..456e782165 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/BoundedSemilatticeLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/BoundedSemilatticeLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.kernel.BoundedSemilattice
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeGroupLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeGroupLaws.scala
index 1f5735db4a..fa1019cf95 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeGroupLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeGroupLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeMonoidLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeMonoidLaws.scala
index 92e789794c..c3330d3c58 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeMonoidLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeMonoidLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.kernel.CommutativeMonoid
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeSemigroupLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeSemigroupLaws.scala
index 6e405649c1..81d83acbab 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeSemigroupLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/CommutativeSemigroupLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.kernel.CommutativeSemigroup
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/EnumerableLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/EnumerableLaws.scala
index e92037738b..4c87eee4d7 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/EnumerableLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/EnumerableLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package laws
 
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/EqLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/EqLaws.scala
index dab242124c..efc4b0365c 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/EqLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/EqLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.kernel.Eq
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/GroupLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/GroupLaws.scala
index b4ac324a73..c5f6e24e16 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/GroupLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/GroupLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package laws
 
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/HashLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/HashLaws.scala
index 20fb31dd10..c7107c6fd8 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/HashLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/HashLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package laws
 
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/IsEq.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/IsEq.scala
index 42d9031239..757035da14 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/IsEq.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/IsEq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package laws
 
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/MonoidLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/MonoidLaws.scala
index 8345e76044..afe1f54647 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/MonoidLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/MonoidLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.kernel.{Eq, Monoid}
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/OrderLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/OrderLaws.scala
index 1595108dde..a307fec7d4 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/OrderLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/OrderLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package laws
 
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/PartialOrderLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/PartialOrderLaws.scala
index 6f43250429..001be7298c 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/PartialOrderLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/PartialOrderLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.kernel.{Eq, PartialOrder}
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/SemigroupLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/SemigroupLaws.scala
index 92b6a082e0..622209132e 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/SemigroupLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/SemigroupLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.kernel.Semigroup
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/SemilatticeLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/SemilatticeLaws.scala
index 3490a2dddf..d229a67756 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/SemilatticeLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/SemilatticeLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.kernel.Semilattice
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/SerializableLaws.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/SerializableLaws.scala
index c6175eccef..2480409ff7 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/SerializableLaws.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/SerializableLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.platform.Platform
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BandTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BandTests.scala
index fd707966b1..8b363ff3bd 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BandTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BandTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BoundedSemilatticeTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BoundedSemilatticeTests.scala
index 80d646447a..2b96b835b2 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BoundedSemilatticeTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BoundedSemilatticeTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BoundedTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BoundedTests.scala
index 3058678aba..8327b7c2d5 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BoundedTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/BoundedTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeGroupTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeGroupTests.scala
index f324fa4fe0..31f7d9eb5d 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeGroupTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeGroupTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeMonoidTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeMonoidTests.scala
index 95101a7900..bbfacc1f9a 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeMonoidTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeMonoidTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeSemigroupTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeSemigroupTests.scala
index c5430d1ea0..77822912cc 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeSemigroupTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/CommutativeSemigroupTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/EnumerableTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/EnumerableTests.scala
index d18a58ed75..d89822ff63 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/EnumerableTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/EnumerableTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/EqTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/EqTests.scala
index 83e6b42cf0..c474ea87ae 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/EqTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/EqTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/GroupTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/GroupTests.scala
index 2e7d9e1e38..8ac002d17e 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/GroupTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/GroupTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/HashTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/HashTests.scala
index 7655993068..160cee00f6 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/HashTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/HashTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/MonoidTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/MonoidTests.scala
index 1436fee98f..0b90f9b13f 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/MonoidTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/MonoidTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/OrderTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/OrderTests.scala
index 58c7857f30..14d1493537 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/OrderTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/OrderTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/PartialOrderTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/PartialOrderTests.scala
index 2b6d070afc..f750f5a284 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/PartialOrderTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/PartialOrderTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SemigroupTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SemigroupTests.scala
index 94ef8b79cf..b27fa70fcd 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SemigroupTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SemigroupTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SemilatticeTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SemilatticeTests.scala
index 89c3f4e918..e6e0ec7176 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SemilatticeTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SemilatticeTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package laws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SerializableTests.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SerializableTests.scala
index 8f71474d28..b0ef405d55 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SerializableTests.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/SerializableTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws.discipline
 
 import cats.kernel.laws.SerializableLaws
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/package.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/package.scala
index 99fb11e50d..8e086ea3dd 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/package.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/discipline/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.laws
 
 import cats.kernel.Eq
diff --git a/kernel-laws/shared/src/main/scala/cats/kernel/laws/package.scala b/kernel-laws/shared/src/main/scala/cats/kernel/laws/package.scala
index 6b2e9613ca..f1641f08ab 100644
--- a/kernel-laws/shared/src/main/scala/cats/kernel/laws/package.scala
+++ b/kernel-laws/shared/src/main/scala/cats/kernel/laws/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 package object laws {
diff --git a/kernel-laws/shared/src/test/scala-2.12/cats/kernel/laws/ScalaVersionSpecificTests.scala b/kernel-laws/shared/src/test/scala-2.12/cats/kernel/laws/ScalaVersionSpecificTests.scala
index accbd6337b..fd01b6c89f 100644
--- a/kernel-laws/shared/src/test/scala-2.12/cats/kernel/laws/ScalaVersionSpecificTests.scala
+++ b/kernel-laws/shared/src/test/scala-2.12/cats/kernel/laws/ScalaVersionSpecificTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package laws
 
diff --git a/kernel-laws/shared/src/test/scala-2.13+/cats/kernel/laws/ScalaVersionSpecificTests.scala b/kernel-laws/shared/src/test/scala-2.13+/cats/kernel/laws/ScalaVersionSpecificTests.scala
index c9e6b3cdda..54433bcfef 100644
--- a/kernel-laws/shared/src/test/scala-2.13+/cats/kernel/laws/ScalaVersionSpecificTests.scala
+++ b/kernel-laws/shared/src/test/scala-2.13+/cats/kernel/laws/ScalaVersionSpecificTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package laws
 
diff --git a/kernel-laws/shared/src/test/scala/cats/kernel/laws/LawTests.scala b/kernel-laws/shared/src/test/scala/cats/kernel/laws/LawTests.scala
index d3e925645b..13c8e2daf1 100644
--- a/kernel-laws/shared/src/test/scala/cats/kernel/laws/LawTests.scala
+++ b/kernel-laws/shared/src/test/scala/cats/kernel/laws/LawTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package laws
 
diff --git a/kernel/src/main/scala-2.12/cats/kernel/EnumerableCompat.scala b/kernel/src/main/scala-2.12/cats/kernel/EnumerableCompat.scala
index c604c892a5..3f86db3bd4 100644
--- a/kernel/src/main/scala-2.12/cats/kernel/EnumerableCompat.scala
+++ b/kernel/src/main/scala-2.12/cats/kernel/EnumerableCompat.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 
diff --git a/kernel/src/main/scala-2.12/cats/kernel/ScalaVersionSpecificInstances.scala b/kernel/src/main/scala-2.12/cats/kernel/ScalaVersionSpecificInstances.scala
index 621365d5ee..0911f9b067 100644
--- a/kernel/src/main/scala-2.12/cats/kernel/ScalaVersionSpecificInstances.scala
+++ b/kernel/src/main/scala-2.12/cats/kernel/ScalaVersionSpecificInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 private[kernel] trait ScalaVersionSpecificOrderInstances extends ScalaVersionSpecificPartialOrderInstances {
diff --git a/kernel/src/main/scala-2.12/cats/kernel/compat/HashCompat.scala b/kernel/src/main/scala-2.12/cats/kernel/compat/HashCompat.scala
index 8fa7aa428a..e2ac247771 100644
--- a/kernel/src/main/scala-2.12/cats/kernel/compat/HashCompat.scala
+++ b/kernel/src/main/scala-2.12/cats/kernel/compat/HashCompat.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package compat
diff --git a/kernel/src/main/scala-2.12/cats/kernel/compat/TraversableOnce.scala b/kernel/src/main/scala-2.12/cats/kernel/compat/TraversableOnce.scala
index 76c5924392..66c8fca968 100644
--- a/kernel/src/main/scala-2.12/cats/kernel/compat/TraversableOnce.scala
+++ b/kernel/src/main/scala-2.12/cats/kernel/compat/TraversableOnce.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package compat
 
diff --git a/kernel/src/main/scala-2.12/cats/kernel/compat/WrappedMutableMapBase.scala b/kernel/src/main/scala-2.12/cats/kernel/compat/WrappedMutableMapBase.scala
index df8330d7c1..ec8ed730ea 100644
--- a/kernel/src/main/scala-2.12/cats/kernel/compat/WrappedMutableMapBase.scala
+++ b/kernel/src/main/scala-2.12/cats/kernel/compat/WrappedMutableMapBase.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package compat
 
diff --git a/kernel/src/main/scala-2.12/cats/kernel/compat/scalaVersionSpecific.scala b/kernel/src/main/scala-2.12/cats/kernel/compat/scalaVersionSpecific.scala
index d5d8278240..ee73d39ae2 100644
--- a/kernel/src/main/scala-2.12/cats/kernel/compat/scalaVersionSpecific.scala
+++ b/kernel/src/main/scala-2.12/cats/kernel/compat/scalaVersionSpecific.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.compat
 import scala.annotation.{Annotation, StaticAnnotation}
 import scala.collection.{IterableLike, TraversableLike}
diff --git a/kernel/src/main/scala-2.12/cats/kernel/instances/AllInstances.scala b/kernel/src/main/scala-2.12/cats/kernel/instances/AllInstances.scala
index 9b3496477e..8bc45b444e 100644
--- a/kernel/src/main/scala-2.12/cats/kernel/instances/AllInstances.scala
+++ b/kernel/src/main/scala-2.12/cats/kernel/instances/AllInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala-2.12/cats/kernel/instances/StreamInstances.scala b/kernel/src/main/scala-2.12/cats/kernel/instances/StreamInstances.scala
index 8fb9587f6c..c5e489d7cc 100644
--- a/kernel/src/main/scala-2.12/cats/kernel/instances/StreamInstances.scala
+++ b/kernel/src/main/scala-2.12/cats/kernel/instances/StreamInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/EnumerableCompat.scala b/kernel/src/main/scala-2.13+/cats/kernel/EnumerableCompat.scala
index ba2317cd14..8a782e5ae3 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/EnumerableCompat.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/EnumerableCompat.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/ScalaVersionSpecificInstances.scala b/kernel/src/main/scala-2.13+/cats/kernel/ScalaVersionSpecificInstances.scala
index d5ac6ea207..cd8bf437ce 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/ScalaVersionSpecificInstances.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/ScalaVersionSpecificInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.collection.immutable.ArraySeq
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/compat/HashCompat.scala b/kernel/src/main/scala-2.13+/cats/kernel/compat/HashCompat.scala
index 02a366c292..044f997a9b 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/compat/HashCompat.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/compat/HashCompat.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package compat
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/compat/WrappedMutableMapBase.scala b/kernel/src/main/scala-2.13+/cats/kernel/compat/WrappedMutableMapBase.scala
index 425cf0c858..3180b7d55e 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/compat/WrappedMutableMapBase.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/compat/WrappedMutableMapBase.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package compat
 
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/compat/scalaVersionMoreSpecific.scala b/kernel/src/main/scala-2.13+/cats/kernel/compat/scalaVersionMoreSpecific.scala
index 5f8c6aec2a..3a2b365dca 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/compat/scalaVersionMoreSpecific.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/compat/scalaVersionMoreSpecific.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel.compat
 import scala.annotation.{Annotation, StaticAnnotation}
 
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/compat/scalaVersionSpecific.scala b/kernel/src/main/scala-2.13+/cats/kernel/compat/scalaVersionSpecific.scala
index ed2415a255..d59fe29167 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/compat/scalaVersionSpecific.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/compat/scalaVersionSpecific.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/instances/AllInstances.scala b/kernel/src/main/scala-2.13+/cats/kernel/instances/AllInstances.scala
index 4fda9716a0..773ffaa80d 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/instances/AllInstances.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/instances/AllInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/instances/ArraySeqInstances.scala b/kernel/src/main/scala-2.13+/cats/kernel/instances/ArraySeqInstances.scala
index 2c7021b755..4a03c3a88e 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/instances/ArraySeqInstances.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/instances/ArraySeqInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/instances/LazyListInstances.scala b/kernel/src/main/scala-2.13+/cats/kernel/instances/LazyListInstances.scala
index 6b4a1bf71b..7118cb7af6 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/instances/LazyListInstances.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/instances/LazyListInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/instances/StreamInstances.scala b/kernel/src/main/scala-2.13+/cats/kernel/instances/StreamInstances.scala
index 3a748145c3..ec41033a7b 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/instances/StreamInstances.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/instances/StreamInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/instances/arraySeq/package.scala b/kernel/src/main/scala-2.13+/cats/kernel/instances/arraySeq/package.scala
index 2d829c75d6..eb81b88571 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/instances/arraySeq/package.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/instances/arraySeq/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala-2.13+/cats/kernel/instances/lazyList/package.scala b/kernel/src/main/scala-2.13+/cats/kernel/instances/lazyList/package.scala
index b1709ca425..2ea9604074 100644
--- a/kernel/src/main/scala-2.13+/cats/kernel/instances/lazyList/package.scala
+++ b/kernel/src/main/scala-2.13+/cats/kernel/instances/lazyList/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/Band.scala b/kernel/src/main/scala/cats/kernel/Band.scala
index 8e45b45053..4a4e2818ea 100644
--- a/kernel/src/main/scala/cats/kernel/Band.scala
+++ b/kernel/src/main/scala/cats/kernel/Band.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.{specialized => sp}
diff --git a/kernel/src/main/scala/cats/kernel/Bounded.scala b/kernel/src/main/scala/cats/kernel/Bounded.scala
index 865d2b7b49..d485351204 100644
--- a/kernel/src/main/scala/cats/kernel/Bounded.scala
+++ b/kernel/src/main/scala/cats/kernel/Bounded.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import java.util.UUID
diff --git a/kernel/src/main/scala/cats/kernel/BoundedSemilattice.scala b/kernel/src/main/scala/cats/kernel/BoundedSemilattice.scala
index 9204c50967..dae0d596d8 100644
--- a/kernel/src/main/scala/cats/kernel/BoundedSemilattice.scala
+++ b/kernel/src/main/scala/cats/kernel/BoundedSemilattice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.{specialized => sp}
diff --git a/kernel/src/main/scala/cats/kernel/CommutativeGroup.scala b/kernel/src/main/scala/cats/kernel/CommutativeGroup.scala
index 441ee2fcf1..ed5750d4fa 100644
--- a/kernel/src/main/scala/cats/kernel/CommutativeGroup.scala
+++ b/kernel/src/main/scala/cats/kernel/CommutativeGroup.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.{specialized => sp}
diff --git a/kernel/src/main/scala/cats/kernel/CommutativeMonoid.scala b/kernel/src/main/scala/cats/kernel/CommutativeMonoid.scala
index 03ac60421f..509d07b260 100644
--- a/kernel/src/main/scala/cats/kernel/CommutativeMonoid.scala
+++ b/kernel/src/main/scala/cats/kernel/CommutativeMonoid.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.{specialized => sp}
diff --git a/kernel/src/main/scala/cats/kernel/CommutativeSemigroup.scala b/kernel/src/main/scala/cats/kernel/CommutativeSemigroup.scala
index 137fce87c5..611f0c0e08 100644
--- a/kernel/src/main/scala/cats/kernel/CommutativeSemigroup.scala
+++ b/kernel/src/main/scala/cats/kernel/CommutativeSemigroup.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.{specialized => sp}
diff --git a/kernel/src/main/scala/cats/kernel/Comparison.scala b/kernel/src/main/scala/cats/kernel/Comparison.scala
index 50d345792a..c46887a248 100644
--- a/kernel/src/main/scala/cats/kernel/Comparison.scala
+++ b/kernel/src/main/scala/cats/kernel/Comparison.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 /**
diff --git a/kernel/src/main/scala/cats/kernel/Enumerable.scala b/kernel/src/main/scala/cats/kernel/Enumerable.scala
index 3c68cb004e..d287113d27 100644
--- a/kernel/src/main/scala/cats/kernel/Enumerable.scala
+++ b/kernel/src/main/scala/cats/kernel/Enumerable.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 
diff --git a/kernel/src/main/scala/cats/kernel/Eq.scala b/kernel/src/main/scala/cats/kernel/Eq.scala
index 67f9877e3e..5f566a8a70 100644
--- a/kernel/src/main/scala/cats/kernel/Eq.scala
+++ b/kernel/src/main/scala/cats/kernel/Eq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import java.util.UUID
diff --git a/kernel/src/main/scala/cats/kernel/Group.scala b/kernel/src/main/scala/cats/kernel/Group.scala
index 785263bce7..0cc026e524 100644
--- a/kernel/src/main/scala/cats/kernel/Group.scala
+++ b/kernel/src/main/scala/cats/kernel/Group.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.{specialized => sp}
diff --git a/kernel/src/main/scala/cats/kernel/Hash.scala b/kernel/src/main/scala/cats/kernel/Hash.scala
index 87b2917e38..997d47390c 100644
--- a/kernel/src/main/scala/cats/kernel/Hash.scala
+++ b/kernel/src/main/scala/cats/kernel/Hash.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.{specialized => sp}
diff --git a/kernel/src/main/scala/cats/kernel/Monoid.scala b/kernel/src/main/scala/cats/kernel/Monoid.scala
index 3217610619..978fd98450 100644
--- a/kernel/src/main/scala/cats/kernel/Monoid.scala
+++ b/kernel/src/main/scala/cats/kernel/Monoid.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.{specialized => sp}
diff --git a/kernel/src/main/scala/cats/kernel/Order.scala b/kernel/src/main/scala/cats/kernel/Order.scala
index 4dff327518..8a7ac87079 100644
--- a/kernel/src/main/scala/cats/kernel/Order.scala
+++ b/kernel/src/main/scala/cats/kernel/Order.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.{specialized => sp}
diff --git a/kernel/src/main/scala/cats/kernel/PartialOrder.scala b/kernel/src/main/scala/cats/kernel/PartialOrder.scala
index 383b068292..9fbe54493b 100644
--- a/kernel/src/main/scala/cats/kernel/PartialOrder.scala
+++ b/kernel/src/main/scala/cats/kernel/PartialOrder.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import java.lang.Double.isNaN
diff --git a/kernel/src/main/scala/cats/kernel/Semigroup.scala b/kernel/src/main/scala/cats/kernel/Semigroup.scala
index 7ae7cc5cf4..66c8ee7be4 100644
--- a/kernel/src/main/scala/cats/kernel/Semigroup.scala
+++ b/kernel/src/main/scala/cats/kernel/Semigroup.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.annotation.tailrec
diff --git a/kernel/src/main/scala/cats/kernel/Semilattice.scala b/kernel/src/main/scala/cats/kernel/Semilattice.scala
index 631de852f5..a3d3d71268 100644
--- a/kernel/src/main/scala/cats/kernel/Semilattice.scala
+++ b/kernel/src/main/scala/cats/kernel/Semilattice.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 
 import scala.{specialized => sp}
diff --git a/kernel/src/main/scala/cats/kernel/instances/BigDecimalInstances.scala b/kernel/src/main/scala/cats/kernel/instances/BigDecimalInstances.scala
index 439c59ad92..3760178ee4 100644
--- a/kernel/src/main/scala/cats/kernel/instances/BigDecimalInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/BigDecimalInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/BigIntInstances.scala b/kernel/src/main/scala/cats/kernel/instances/BigIntInstances.scala
index 4741f74179..83a7360959 100644
--- a/kernel/src/main/scala/cats/kernel/instances/BigIntInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/BigIntInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/BitSetInstances.scala b/kernel/src/main/scala/cats/kernel/instances/BitSetInstances.scala
index 5787ba8001..0efe50bd12 100644
--- a/kernel/src/main/scala/cats/kernel/instances/BitSetInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/BitSetInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/BooleanInstances.scala b/kernel/src/main/scala/cats/kernel/instances/BooleanInstances.scala
index 69656e34a9..ad818d478d 100644
--- a/kernel/src/main/scala/cats/kernel/instances/BooleanInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/BooleanInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/ByteInstances.scala b/kernel/src/main/scala/cats/kernel/instances/ByteInstances.scala
index 7ba66a1e76..8d767997ef 100644
--- a/kernel/src/main/scala/cats/kernel/instances/ByteInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/ByteInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/CharInstances.scala b/kernel/src/main/scala/cats/kernel/instances/CharInstances.scala
index 14a0e6061b..2ff7b77f08 100644
--- a/kernel/src/main/scala/cats/kernel/instances/CharInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/CharInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/DeadlineInstances.scala b/kernel/src/main/scala/cats/kernel/instances/DeadlineInstances.scala
index 330e4b46ba..291ce3bc6e 100644
--- a/kernel/src/main/scala/cats/kernel/instances/DeadlineInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/DeadlineInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/DoubleInstances.scala b/kernel/src/main/scala/cats/kernel/instances/DoubleInstances.scala
index a993dbe6b9..a90aa04d4e 100644
--- a/kernel/src/main/scala/cats/kernel/instances/DoubleInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/DoubleInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/DurationInstances.scala b/kernel/src/main/scala/cats/kernel/instances/DurationInstances.scala
index 58f8816360..0eb8fd8be2 100644
--- a/kernel/src/main/scala/cats/kernel/instances/DurationInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/DurationInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/EitherInstances.scala b/kernel/src/main/scala/cats/kernel/instances/EitherInstances.scala
index b57079e2ed..bdfb3dd10d 100644
--- a/kernel/src/main/scala/cats/kernel/instances/EitherInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/EitherInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/FiniteDurationInstances.scala b/kernel/src/main/scala/cats/kernel/instances/FiniteDurationInstances.scala
index b616311f8d..41495d364c 100644
--- a/kernel/src/main/scala/cats/kernel/instances/FiniteDurationInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/FiniteDurationInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/FloatInstances.scala b/kernel/src/main/scala/cats/kernel/instances/FloatInstances.scala
index cdac895e19..989d3a82a7 100644
--- a/kernel/src/main/scala/cats/kernel/instances/FloatInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/FloatInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/FunctionInstances.scala b/kernel/src/main/scala/cats/kernel/instances/FunctionInstances.scala
index f7618b7606..833a5772f1 100644
--- a/kernel/src/main/scala/cats/kernel/instances/FunctionInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/FunctionInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/IntInstances.scala b/kernel/src/main/scala/cats/kernel/instances/IntInstances.scala
index 9d268e6deb..a0c3b5366e 100644
--- a/kernel/src/main/scala/cats/kernel/instances/IntInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/IntInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/ListInstances.scala b/kernel/src/main/scala/cats/kernel/instances/ListInstances.scala
index a23e846469..e8029837dc 100644
--- a/kernel/src/main/scala/cats/kernel/instances/ListInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/ListInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/LongInstances.scala b/kernel/src/main/scala/cats/kernel/instances/LongInstances.scala
index 5df92ec563..8be97210c8 100644
--- a/kernel/src/main/scala/cats/kernel/instances/LongInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/LongInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/MapInstances.scala b/kernel/src/main/scala/cats/kernel/instances/MapInstances.scala
index 9ba156ad80..37edbdc14a 100644
--- a/kernel/src/main/scala/cats/kernel/instances/MapInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/MapInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/OptionInstances.scala b/kernel/src/main/scala/cats/kernel/instances/OptionInstances.scala
index 121bf49862..ddf7510706 100644
--- a/kernel/src/main/scala/cats/kernel/instances/OptionInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/OptionInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/QueueInstances.scala b/kernel/src/main/scala/cats/kernel/instances/QueueInstances.scala
index 76a8ec7e18..b84ff11e6b 100644
--- a/kernel/src/main/scala/cats/kernel/instances/QueueInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/QueueInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/SeqInstances.scala b/kernel/src/main/scala/cats/kernel/instances/SeqInstances.scala
index e2e51e9cb0..1447f45958 100644
--- a/kernel/src/main/scala/cats/kernel/instances/SeqInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/SeqInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/SetInstances.scala b/kernel/src/main/scala/cats/kernel/instances/SetInstances.scala
index fb9add7d6e..837172753d 100644
--- a/kernel/src/main/scala/cats/kernel/instances/SetInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/SetInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/ShortInstances.scala b/kernel/src/main/scala/cats/kernel/instances/ShortInstances.scala
index 3893bb5fed..070f5bc203 100644
--- a/kernel/src/main/scala/cats/kernel/instances/ShortInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/ShortInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/SortedMapInstances.scala b/kernel/src/main/scala/cats/kernel/instances/SortedMapInstances.scala
index a2d76c9531..3d9e372059 100644
--- a/kernel/src/main/scala/cats/kernel/instances/SortedMapInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/SortedMapInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/SortedSetInstances.scala b/kernel/src/main/scala/cats/kernel/instances/SortedSetInstances.scala
index 63913b59f7..ae8206fb15 100644
--- a/kernel/src/main/scala/cats/kernel/instances/SortedSetInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/SortedSetInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/StaticMethods.scala b/kernel/src/main/scala/cats/kernel/instances/StaticMethods.scala
index e9e561f41d..e21929aea9 100644
--- a/kernel/src/main/scala/cats/kernel/instances/StaticMethods.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/StaticMethods.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package kernel
 package instances
diff --git a/kernel/src/main/scala/cats/kernel/instances/StringInstances.scala b/kernel/src/main/scala/cats/kernel/instances/StringInstances.scala
index fdd5a31913..f1baf01fd6 100644
--- a/kernel/src/main/scala/cats/kernel/instances/StringInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/StringInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 import compat.scalaVersionSpecific._
diff --git a/kernel/src/main/scala/cats/kernel/instances/SymbolInstances.scala b/kernel/src/main/scala/cats/kernel/instances/SymbolInstances.scala
index 6cfbfae59a..3e5b242e44 100644
--- a/kernel/src/main/scala/cats/kernel/instances/SymbolInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/SymbolInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/UUIDInstances.scala b/kernel/src/main/scala/cats/kernel/instances/UUIDInstances.scala
index 4b8cf0b874..ab358dac35 100644
--- a/kernel/src/main/scala/cats/kernel/instances/UUIDInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/UUIDInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/UnitInstances.scala b/kernel/src/main/scala/cats/kernel/instances/UnitInstances.scala
index f5f7ea1a43..b7b28974a6 100644
--- a/kernel/src/main/scala/cats/kernel/instances/UnitInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/UnitInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 import compat.scalaVersionSpecific._
diff --git a/kernel/src/main/scala/cats/kernel/instances/VectorInstances.scala b/kernel/src/main/scala/cats/kernel/instances/VectorInstances.scala
index 75193a7e64..b9860893be 100644
--- a/kernel/src/main/scala/cats/kernel/instances/VectorInstances.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/VectorInstances.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 import compat.scalaVersionSpecific._
diff --git a/kernel/src/main/scala/cats/kernel/instances/all/package.scala b/kernel/src/main/scala/cats/kernel/instances/all/package.scala
index f51831410c..ab6901c941 100644
--- a/kernel/src/main/scala/cats/kernel/instances/all/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/all/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/bigDecimal/package.scala b/kernel/src/main/scala/cats/kernel/instances/bigDecimal/package.scala
index 1f1479ffdc..a27da86985 100644
--- a/kernel/src/main/scala/cats/kernel/instances/bigDecimal/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/bigDecimal/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/bigInt/package.scala b/kernel/src/main/scala/cats/kernel/instances/bigInt/package.scala
index 581d72fb98..ab24a218e9 100644
--- a/kernel/src/main/scala/cats/kernel/instances/bigInt/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/bigInt/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/bitSet/package.scala b/kernel/src/main/scala/cats/kernel/instances/bitSet/package.scala
index 8101470743..eec2ea6e09 100644
--- a/kernel/src/main/scala/cats/kernel/instances/bitSet/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/bitSet/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/boolean/package.scala b/kernel/src/main/scala/cats/kernel/instances/boolean/package.scala
index 72b2dddcf7..f7691e14bb 100644
--- a/kernel/src/main/scala/cats/kernel/instances/boolean/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/boolean/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/byte/package.scala b/kernel/src/main/scala/cats/kernel/instances/byte/package.scala
index 81c00be595..1c59f96230 100644
--- a/kernel/src/main/scala/cats/kernel/instances/byte/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/byte/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/char/package.scala b/kernel/src/main/scala/cats/kernel/instances/char/package.scala
index 321b5ec48f..a6595dcd80 100644
--- a/kernel/src/main/scala/cats/kernel/instances/char/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/char/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/deadline/package.scala b/kernel/src/main/scala/cats/kernel/instances/deadline/package.scala
index e8316f91e2..c6ce69505a 100644
--- a/kernel/src/main/scala/cats/kernel/instances/deadline/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/deadline/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/double/package.scala b/kernel/src/main/scala/cats/kernel/instances/double/package.scala
index 2f94b36bc7..c6ebb98251 100644
--- a/kernel/src/main/scala/cats/kernel/instances/double/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/double/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/duration/package.scala b/kernel/src/main/scala/cats/kernel/instances/duration/package.scala
index c0b42054fe..b11cbf0554 100644
--- a/kernel/src/main/scala/cats/kernel/instances/duration/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/duration/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/either/package.scala b/kernel/src/main/scala/cats/kernel/instances/either/package.scala
index da52a4464d..2e055652b6 100644
--- a/kernel/src/main/scala/cats/kernel/instances/either/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/either/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/eq.scala b/kernel/src/main/scala/cats/kernel/instances/eq.scala
index 2ffbf559ad..21792e8a8b 100644
--- a/kernel/src/main/scala/cats/kernel/instances/eq.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/eq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/finiteDuration/package.scala b/kernel/src/main/scala/cats/kernel/instances/finiteDuration/package.scala
index bb3ae7868c..69d8b53736 100644
--- a/kernel/src/main/scala/cats/kernel/instances/finiteDuration/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/finiteDuration/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/float/package.scala b/kernel/src/main/scala/cats/kernel/instances/float/package.scala
index c0c9e78c61..7f51e7b88f 100644
--- a/kernel/src/main/scala/cats/kernel/instances/float/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/float/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/function/package.scala b/kernel/src/main/scala/cats/kernel/instances/function/package.scala
index 2b9ed5c079..ba17df4567 100644
--- a/kernel/src/main/scala/cats/kernel/instances/function/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/function/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/hash.scala b/kernel/src/main/scala/cats/kernel/instances/hash.scala
index 3822096596..e2ffe72dde 100644
--- a/kernel/src/main/scala/cats/kernel/instances/hash.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/hash.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/int/package.scala b/kernel/src/main/scala/cats/kernel/instances/int/package.scala
index 52b75758f3..a6b11cbf81 100644
--- a/kernel/src/main/scala/cats/kernel/instances/int/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/int/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/list/package.scala b/kernel/src/main/scala/cats/kernel/instances/list/package.scala
index bbddec8bdc..72d2627dd8 100644
--- a/kernel/src/main/scala/cats/kernel/instances/list/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/list/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/long/package.scala b/kernel/src/main/scala/cats/kernel/instances/long/package.scala
index 424a64f063..c556b3845d 100644
--- a/kernel/src/main/scala/cats/kernel/instances/long/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/long/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/map/package.scala b/kernel/src/main/scala/cats/kernel/instances/map/package.scala
index 5d5b9db260..8b3fa52ca3 100644
--- a/kernel/src/main/scala/cats/kernel/instances/map/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/map/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/option/package.scala b/kernel/src/main/scala/cats/kernel/instances/option/package.scala
index b71553fe7e..15c79dbcab 100644
--- a/kernel/src/main/scala/cats/kernel/instances/option/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/option/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/order.scala b/kernel/src/main/scala/cats/kernel/instances/order.scala
index e678dc34d9..f47a5b1791 100644
--- a/kernel/src/main/scala/cats/kernel/instances/order.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/order.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/partialOrder.scala b/kernel/src/main/scala/cats/kernel/instances/partialOrder.scala
index b7dfc5819b..271bd18107 100644
--- a/kernel/src/main/scala/cats/kernel/instances/partialOrder.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/partialOrder.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/queue/package.scala b/kernel/src/main/scala/cats/kernel/instances/queue/package.scala
index 7cc23275e1..6513ec0b1f 100644
--- a/kernel/src/main/scala/cats/kernel/instances/queue/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/queue/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/seq/package.scala b/kernel/src/main/scala/cats/kernel/instances/seq/package.scala
index 9eb2cd5ba0..2b05e85077 100644
--- a/kernel/src/main/scala/cats/kernel/instances/seq/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/seq/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/set/package.scala b/kernel/src/main/scala/cats/kernel/instances/set/package.scala
index 86257fd0b9..1ebcb3d0df 100644
--- a/kernel/src/main/scala/cats/kernel/instances/set/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/set/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/short/package.scala b/kernel/src/main/scala/cats/kernel/instances/short/package.scala
index ad6d0d7ac2..aeef136fe0 100644
--- a/kernel/src/main/scala/cats/kernel/instances/short/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/short/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/sortedMap/package.scala b/kernel/src/main/scala/cats/kernel/instances/sortedMap/package.scala
index 737eef88db..7ab2c21614 100644
--- a/kernel/src/main/scala/cats/kernel/instances/sortedMap/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/sortedMap/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/sortedSet/package.scala b/kernel/src/main/scala/cats/kernel/instances/sortedSet/package.scala
index edddfb1011..b06c3c5e20 100644
--- a/kernel/src/main/scala/cats/kernel/instances/sortedSet/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/sortedSet/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/stream/package.scala b/kernel/src/main/scala/cats/kernel/instances/stream/package.scala
index 53bbfe510d..eeb72b3c24 100644
--- a/kernel/src/main/scala/cats/kernel/instances/stream/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/stream/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/string/package.scala b/kernel/src/main/scala/cats/kernel/instances/string/package.scala
index 61a311e74d..c39355ffc3 100644
--- a/kernel/src/main/scala/cats/kernel/instances/string/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/string/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/symbol/package.scala b/kernel/src/main/scala/cats/kernel/instances/symbol/package.scala
index 3093302f90..54e7f5e6e9 100644
--- a/kernel/src/main/scala/cats/kernel/instances/symbol/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/symbol/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/tuple/package.scala b/kernel/src/main/scala/cats/kernel/instances/tuple/package.scala
index 2572ef0e5f..279d47e244 100644
--- a/kernel/src/main/scala/cats/kernel/instances/tuple/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/tuple/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/unit/package.scala b/kernel/src/main/scala/cats/kernel/instances/unit/package.scala
index fe91a1bbca..001b7bb258 100644
--- a/kernel/src/main/scala/cats/kernel/instances/unit/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/unit/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/uuid/package.scala b/kernel/src/main/scala/cats/kernel/instances/uuid/package.scala
index c3fd236953..d630c7ccc3 100644
--- a/kernel/src/main/scala/cats/kernel/instances/uuid/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/uuid/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/kernel/src/main/scala/cats/kernel/instances/vector/package.scala b/kernel/src/main/scala/cats/kernel/instances/vector/package.scala
index d6d3164400..f91f8b4002 100644
--- a/kernel/src/main/scala/cats/kernel/instances/vector/package.scala
+++ b/kernel/src/main/scala/cats/kernel/instances/vector/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.kernel
 package instances
 
diff --git a/laws/src/main/scala-2.12/cats/laws/discipline/ScalaVersionSpecific.scala b/laws/src/main/scala-2.12/cats/laws/discipline/ScalaVersionSpecific.scala
index 7280f132c7..f711747907 100644
--- a/laws/src/main/scala-2.12/cats/laws/discipline/ScalaVersionSpecific.scala
+++ b/laws/src/main/scala-2.12/cats/laws/discipline/ScalaVersionSpecific.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala-2.13+/cats/laws/discipline/ScalaVersionSpecific.scala b/laws/src/main/scala-2.13+/cats/laws/discipline/ScalaVersionSpecific.scala
index d385db2c45..f1e863e1e7 100644
--- a/laws/src/main/scala-2.13+/cats/laws/discipline/ScalaVersionSpecific.scala
+++ b/laws/src/main/scala-2.13+/cats/laws/discipline/ScalaVersionSpecific.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.laws.discipline
 
 import cats.data.{NonEmptyLazyList, ZipLazyList, ZipStream}
diff --git a/laws/src/main/scala/cats/laws/AlignLaws.scala b/laws/src/main/scala/cats/laws/AlignLaws.scala
index 7d1d4c2428..eb83c47241 100644
--- a/laws/src/main/scala/cats/laws/AlignLaws.scala
+++ b/laws/src/main/scala/cats/laws/AlignLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/AlternativeLaws.scala b/laws/src/main/scala/cats/laws/AlternativeLaws.scala
index 15100eed89..adb9cdfd99 100644
--- a/laws/src/main/scala/cats/laws/AlternativeLaws.scala
+++ b/laws/src/main/scala/cats/laws/AlternativeLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ApplicativeErrorLaws.scala b/laws/src/main/scala/cats/laws/ApplicativeErrorLaws.scala
index 438acec347..c6b21eeef3 100644
--- a/laws/src/main/scala/cats/laws/ApplicativeErrorLaws.scala
+++ b/laws/src/main/scala/cats/laws/ApplicativeErrorLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ApplicativeLaws.scala b/laws/src/main/scala/cats/laws/ApplicativeLaws.scala
index a1405f09a0..646727ccdf 100644
--- a/laws/src/main/scala/cats/laws/ApplicativeLaws.scala
+++ b/laws/src/main/scala/cats/laws/ApplicativeLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ApplyLaws.scala b/laws/src/main/scala/cats/laws/ApplyLaws.scala
index 0d96699131..e32a8b5664 100644
--- a/laws/src/main/scala/cats/laws/ApplyLaws.scala
+++ b/laws/src/main/scala/cats/laws/ApplyLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ArrowChoiceLaws.scala b/laws/src/main/scala/cats/laws/ArrowChoiceLaws.scala
index a465e37e18..2be4ba950f 100644
--- a/laws/src/main/scala/cats/laws/ArrowChoiceLaws.scala
+++ b/laws/src/main/scala/cats/laws/ArrowChoiceLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ArrowLaws.scala b/laws/src/main/scala/cats/laws/ArrowLaws.scala
index 1e29e63d12..a0e6cb030a 100644
--- a/laws/src/main/scala/cats/laws/ArrowLaws.scala
+++ b/laws/src/main/scala/cats/laws/ArrowLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/BifoldableLaws.scala b/laws/src/main/scala/cats/laws/BifoldableLaws.scala
index 3dc51233f2..b586e2fa61 100644
--- a/laws/src/main/scala/cats/laws/BifoldableLaws.scala
+++ b/laws/src/main/scala/cats/laws/BifoldableLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/BifunctorLaws.scala b/laws/src/main/scala/cats/laws/BifunctorLaws.scala
index 1304db1b39..ccdefc3d54 100644
--- a/laws/src/main/scala/cats/laws/BifunctorLaws.scala
+++ b/laws/src/main/scala/cats/laws/BifunctorLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.laws
 
 import cats.Bifunctor
diff --git a/laws/src/main/scala/cats/laws/BimonadLaws.scala b/laws/src/main/scala/cats/laws/BimonadLaws.scala
index 244d51361c..aab44a7dba 100644
--- a/laws/src/main/scala/cats/laws/BimonadLaws.scala
+++ b/laws/src/main/scala/cats/laws/BimonadLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/BitraverseLaws.scala b/laws/src/main/scala/cats/laws/BitraverseLaws.scala
index d57eb69869..426f77a707 100644
--- a/laws/src/main/scala/cats/laws/BitraverseLaws.scala
+++ b/laws/src/main/scala/cats/laws/BitraverseLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/CategoryLaws.scala b/laws/src/main/scala/cats/laws/CategoryLaws.scala
index ea380c7c83..4adf359efe 100644
--- a/laws/src/main/scala/cats/laws/CategoryLaws.scala
+++ b/laws/src/main/scala/cats/laws/CategoryLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ChoiceLaws.scala b/laws/src/main/scala/cats/laws/ChoiceLaws.scala
index 3f083625d5..83743a4e17 100644
--- a/laws/src/main/scala/cats/laws/ChoiceLaws.scala
+++ b/laws/src/main/scala/cats/laws/ChoiceLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/CoflatMapLaws.scala b/laws/src/main/scala/cats/laws/CoflatMapLaws.scala
index eaf6bfaf71..f1ffbc10ce 100644
--- a/laws/src/main/scala/cats/laws/CoflatMapLaws.scala
+++ b/laws/src/main/scala/cats/laws/CoflatMapLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/CommutativeApplicativeLaws.scala b/laws/src/main/scala/cats/laws/CommutativeApplicativeLaws.scala
index 05f9770312..be2021f523 100644
--- a/laws/src/main/scala/cats/laws/CommutativeApplicativeLaws.scala
+++ b/laws/src/main/scala/cats/laws/CommutativeApplicativeLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.laws
 
 import cats.CommutativeApplicative
diff --git a/laws/src/main/scala/cats/laws/CommutativeApplyLaws.scala b/laws/src/main/scala/cats/laws/CommutativeApplyLaws.scala
index 19536c982b..3ed4b84caf 100644
--- a/laws/src/main/scala/cats/laws/CommutativeApplyLaws.scala
+++ b/laws/src/main/scala/cats/laws/CommutativeApplyLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.laws
 
 import cats.CommutativeApply
diff --git a/laws/src/main/scala/cats/laws/CommutativeArrowLaws.scala b/laws/src/main/scala/cats/laws/CommutativeArrowLaws.scala
index 61ead19bdd..95b324b98b 100644
--- a/laws/src/main/scala/cats/laws/CommutativeArrowLaws.scala
+++ b/laws/src/main/scala/cats/laws/CommutativeArrowLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/CommutativeFlatMapLaws.scala b/laws/src/main/scala/cats/laws/CommutativeFlatMapLaws.scala
index 04b5a19aba..c042ae2573 100644
--- a/laws/src/main/scala/cats/laws/CommutativeFlatMapLaws.scala
+++ b/laws/src/main/scala/cats/laws/CommutativeFlatMapLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/CommutativeMonadLaws.scala b/laws/src/main/scala/cats/laws/CommutativeMonadLaws.scala
index 509d046db8..595ca02cd9 100644
--- a/laws/src/main/scala/cats/laws/CommutativeMonadLaws.scala
+++ b/laws/src/main/scala/cats/laws/CommutativeMonadLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ComonadLaws.scala b/laws/src/main/scala/cats/laws/ComonadLaws.scala
index b459a49109..e85bd0e024 100644
--- a/laws/src/main/scala/cats/laws/ComonadLaws.scala
+++ b/laws/src/main/scala/cats/laws/ComonadLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ComposeLaws.scala b/laws/src/main/scala/cats/laws/ComposeLaws.scala
index c1d14e546f..f0e7201e0d 100644
--- a/laws/src/main/scala/cats/laws/ComposeLaws.scala
+++ b/laws/src/main/scala/cats/laws/ComposeLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ContravariantLaws.scala b/laws/src/main/scala/cats/laws/ContravariantLaws.scala
index 4b325a4d3e..39f14e0250 100644
--- a/laws/src/main/scala/cats/laws/ContravariantLaws.scala
+++ b/laws/src/main/scala/cats/laws/ContravariantLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ContravariantMonoidalLaws.scala b/laws/src/main/scala/cats/laws/ContravariantMonoidalLaws.scala
index db55d2e247..e4d5cd09aa 100644
--- a/laws/src/main/scala/cats/laws/ContravariantMonoidalLaws.scala
+++ b/laws/src/main/scala/cats/laws/ContravariantMonoidalLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ContravariantSemigroupalLaws.scala b/laws/src/main/scala/cats/laws/ContravariantSemigroupalLaws.scala
index 4ba3a6990d..4dfef80bb4 100644
--- a/laws/src/main/scala/cats/laws/ContravariantSemigroupalLaws.scala
+++ b/laws/src/main/scala/cats/laws/ContravariantSemigroupalLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/DeferLaws.scala b/laws/src/main/scala/cats/laws/DeferLaws.scala
index 1317460ad0..d56ab6a871 100644
--- a/laws/src/main/scala/cats/laws/DeferLaws.scala
+++ b/laws/src/main/scala/cats/laws/DeferLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/DistributiveLaws.scala b/laws/src/main/scala/cats/laws/DistributiveLaws.scala
index 9bb7f2ab2f..85f603e0ea 100644
--- a/laws/src/main/scala/cats/laws/DistributiveLaws.scala
+++ b/laws/src/main/scala/cats/laws/DistributiveLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/FlatMapLaws.scala b/laws/src/main/scala/cats/laws/FlatMapLaws.scala
index be776d1dc1..27341db14b 100644
--- a/laws/src/main/scala/cats/laws/FlatMapLaws.scala
+++ b/laws/src/main/scala/cats/laws/FlatMapLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/FoldableLaws.scala b/laws/src/main/scala/cats/laws/FoldableLaws.scala
index 981e686b80..c4f8e1fcae 100644
--- a/laws/src/main/scala/cats/laws/FoldableLaws.scala
+++ b/laws/src/main/scala/cats/laws/FoldableLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/FunctorFilterLaws.scala b/laws/src/main/scala/cats/laws/FunctorFilterLaws.scala
index 73e48f8dec..8c9d15bae0 100644
--- a/laws/src/main/scala/cats/laws/FunctorFilterLaws.scala
+++ b/laws/src/main/scala/cats/laws/FunctorFilterLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/FunctorLaws.scala b/laws/src/main/scala/cats/laws/FunctorLaws.scala
index 1f9f163333..3a7c539a1f 100644
--- a/laws/src/main/scala/cats/laws/FunctorLaws.scala
+++ b/laws/src/main/scala/cats/laws/FunctorLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/InjectKLaws.scala b/laws/src/main/scala/cats/laws/InjectKLaws.scala
index b5b77c90b1..9298686009 100644
--- a/laws/src/main/scala/cats/laws/InjectKLaws.scala
+++ b/laws/src/main/scala/cats/laws/InjectKLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/InjectLaws.scala b/laws/src/main/scala/cats/laws/InjectLaws.scala
index 956793698b..26556eebdc 100644
--- a/laws/src/main/scala/cats/laws/InjectLaws.scala
+++ b/laws/src/main/scala/cats/laws/InjectLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/InvariantLaws.scala b/laws/src/main/scala/cats/laws/InvariantLaws.scala
index 4718b45b44..65920fcc05 100644
--- a/laws/src/main/scala/cats/laws/InvariantLaws.scala
+++ b/laws/src/main/scala/cats/laws/InvariantLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/InvariantMonoidalLaws.scala b/laws/src/main/scala/cats/laws/InvariantMonoidalLaws.scala
index 58c82d4766..782777be58 100644
--- a/laws/src/main/scala/cats/laws/InvariantMonoidalLaws.scala
+++ b/laws/src/main/scala/cats/laws/InvariantMonoidalLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/InvariantSemigroupalLaws.scala b/laws/src/main/scala/cats/laws/InvariantSemigroupalLaws.scala
index b15a7cea91..216c2a06c5 100644
--- a/laws/src/main/scala/cats/laws/InvariantSemigroupalLaws.scala
+++ b/laws/src/main/scala/cats/laws/InvariantSemigroupalLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/MonadErrorLaws.scala b/laws/src/main/scala/cats/laws/MonadErrorLaws.scala
index c05f029994..6071474db0 100644
--- a/laws/src/main/scala/cats/laws/MonadErrorLaws.scala
+++ b/laws/src/main/scala/cats/laws/MonadErrorLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/MonadLaws.scala b/laws/src/main/scala/cats/laws/MonadLaws.scala
index b488192ae6..9b10268c09 100644
--- a/laws/src/main/scala/cats/laws/MonadLaws.scala
+++ b/laws/src/main/scala/cats/laws/MonadLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/MonoidKLaws.scala b/laws/src/main/scala/cats/laws/MonoidKLaws.scala
index 71b45fe047..aecea5b7f3 100644
--- a/laws/src/main/scala/cats/laws/MonoidKLaws.scala
+++ b/laws/src/main/scala/cats/laws/MonoidKLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/NonEmptyAlternativeLaws.scala b/laws/src/main/scala/cats/laws/NonEmptyAlternativeLaws.scala
index 7303afc5f5..413585c79c 100644
--- a/laws/src/main/scala/cats/laws/NonEmptyAlternativeLaws.scala
+++ b/laws/src/main/scala/cats/laws/NonEmptyAlternativeLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/NonEmptyParallelLaws.scala b/laws/src/main/scala/cats/laws/NonEmptyParallelLaws.scala
index 880b3ba1d9..7eef4239b4 100644
--- a/laws/src/main/scala/cats/laws/NonEmptyParallelLaws.scala
+++ b/laws/src/main/scala/cats/laws/NonEmptyParallelLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/NonEmptyTraverseLaws.scala b/laws/src/main/scala/cats/laws/NonEmptyTraverseLaws.scala
index e89d7d4ac5..8530ed9ef9 100644
--- a/laws/src/main/scala/cats/laws/NonEmptyTraverseLaws.scala
+++ b/laws/src/main/scala/cats/laws/NonEmptyTraverseLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.laws
 
 import cats.{Apply, Id, NonEmptyTraverse, Semigroup}
diff --git a/laws/src/main/scala/cats/laws/ParallelLaws.scala b/laws/src/main/scala/cats/laws/ParallelLaws.scala
index 4e7165e94a..67c4ee9d49 100644
--- a/laws/src/main/scala/cats/laws/ParallelLaws.scala
+++ b/laws/src/main/scala/cats/laws/ParallelLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ProfunctorLaws.scala b/laws/src/main/scala/cats/laws/ProfunctorLaws.scala
index 904b5344a1..e1b83a4b5d 100644
--- a/laws/src/main/scala/cats/laws/ProfunctorLaws.scala
+++ b/laws/src/main/scala/cats/laws/ProfunctorLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ReducibleLaws.scala b/laws/src/main/scala/cats/laws/ReducibleLaws.scala
index 7c3fe2e417..89da4be3b1 100644
--- a/laws/src/main/scala/cats/laws/ReducibleLaws.scala
+++ b/laws/src/main/scala/cats/laws/ReducibleLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/RepresentableLaws.scala b/laws/src/main/scala/cats/laws/RepresentableLaws.scala
index a5758ce335..939c697dd3 100644
--- a/laws/src/main/scala/cats/laws/RepresentableLaws.scala
+++ b/laws/src/main/scala/cats/laws/RepresentableLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/SemigroupKLaws.scala b/laws/src/main/scala/cats/laws/SemigroupKLaws.scala
index d743ccc2ff..bbafde4133 100644
--- a/laws/src/main/scala/cats/laws/SemigroupKLaws.scala
+++ b/laws/src/main/scala/cats/laws/SemigroupKLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/SemigroupalLaws.scala b/laws/src/main/scala/cats/laws/SemigroupalLaws.scala
index 59cdbc363f..444c3ccdea 100644
--- a/laws/src/main/scala/cats/laws/SemigroupalLaws.scala
+++ b/laws/src/main/scala/cats/laws/SemigroupalLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/ShortCircuitingLaws.scala b/laws/src/main/scala/cats/laws/ShortCircuitingLaws.scala
index ca8e0c4d22..5105890172 100644
--- a/laws/src/main/scala/cats/laws/ShortCircuitingLaws.scala
+++ b/laws/src/main/scala/cats/laws/ShortCircuitingLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.laws
 
 import java.util.concurrent.atomic.AtomicLong
diff --git a/laws/src/main/scala/cats/laws/StrongLaws.scala b/laws/src/main/scala/cats/laws/StrongLaws.scala
index 4beee5b641..30ea52a057 100644
--- a/laws/src/main/scala/cats/laws/StrongLaws.scala
+++ b/laws/src/main/scala/cats/laws/StrongLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/TraverseFilterLaws.scala b/laws/src/main/scala/cats/laws/TraverseFilterLaws.scala
index 3c45188ddd..b2d0df5bf0 100644
--- a/laws/src/main/scala/cats/laws/TraverseFilterLaws.scala
+++ b/laws/src/main/scala/cats/laws/TraverseFilterLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/TraverseLaws.scala b/laws/src/main/scala/cats/laws/TraverseLaws.scala
index 856e212392..61bce31df4 100644
--- a/laws/src/main/scala/cats/laws/TraverseLaws.scala
+++ b/laws/src/main/scala/cats/laws/TraverseLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/UnorderedFoldableLaws.scala b/laws/src/main/scala/cats/laws/UnorderedFoldableLaws.scala
index 45b765c7ee..fc878a5630 100644
--- a/laws/src/main/scala/cats/laws/UnorderedFoldableLaws.scala
+++ b/laws/src/main/scala/cats/laws/UnorderedFoldableLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/UnorderedTraverseLaws.scala b/laws/src/main/scala/cats/laws/UnorderedTraverseLaws.scala
index d3a3ee1252..7a41a0fae7 100644
--- a/laws/src/main/scala/cats/laws/UnorderedTraverseLaws.scala
+++ b/laws/src/main/scala/cats/laws/UnorderedTraverseLaws.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/discipline/AlignTests.scala b/laws/src/main/scala/cats/laws/discipline/AlignTests.scala
index c7af3738be..b1469e2db3 100644
--- a/laws/src/main/scala/cats/laws/discipline/AlignTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/AlignTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/AlternativeTests.scala b/laws/src/main/scala/cats/laws/discipline/AlternativeTests.scala
index 3574daf967..b946896690 100644
--- a/laws/src/main/scala/cats/laws/discipline/AlternativeTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/AlternativeTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ApplicativeErrorTests.scala b/laws/src/main/scala/cats/laws/discipline/ApplicativeErrorTests.scala
index b9066b845b..6d0c4fd903 100644
--- a/laws/src/main/scala/cats/laws/discipline/ApplicativeErrorTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ApplicativeErrorTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ApplicativeTests.scala b/laws/src/main/scala/cats/laws/discipline/ApplicativeTests.scala
index 510024fa04..08bc6db9aa 100644
--- a/laws/src/main/scala/cats/laws/discipline/ApplicativeTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ApplicativeTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ApplyTests.scala b/laws/src/main/scala/cats/laws/discipline/ApplyTests.scala
index 57ba7983ab..f9ff817747 100644
--- a/laws/src/main/scala/cats/laws/discipline/ApplyTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ApplyTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ArrowChoiceTests.scala b/laws/src/main/scala/cats/laws/discipline/ArrowChoiceTests.scala
index affff0ee76..8d44b51e55 100644
--- a/laws/src/main/scala/cats/laws/discipline/ArrowChoiceTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ArrowChoiceTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ArrowTests.scala b/laws/src/main/scala/cats/laws/discipline/ArrowTests.scala
index 13332b4622..3fc52c40a0 100644
--- a/laws/src/main/scala/cats/laws/discipline/ArrowTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ArrowTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/BifoldableTests.scala b/laws/src/main/scala/cats/laws/discipline/BifoldableTests.scala
index 2e391109f1..478d0d8936 100644
--- a/laws/src/main/scala/cats/laws/discipline/BifoldableTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/BifoldableTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/BifunctorTests.scala b/laws/src/main/scala/cats/laws/discipline/BifunctorTests.scala
index 7ca82461cf..2ed10fadc5 100644
--- a/laws/src/main/scala/cats/laws/discipline/BifunctorTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/BifunctorTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.laws.discipline
 
 import cats.{Bifunctor, Eq}
diff --git a/laws/src/main/scala/cats/laws/discipline/BimonadTests.scala b/laws/src/main/scala/cats/laws/discipline/BimonadTests.scala
index 7ff7c71619..716f42078d 100644
--- a/laws/src/main/scala/cats/laws/discipline/BimonadTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/BimonadTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/BitraverseTests.scala b/laws/src/main/scala/cats/laws/discipline/BitraverseTests.scala
index 706077f7a9..6e6c4acc02 100644
--- a/laws/src/main/scala/cats/laws/discipline/BitraverseTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/BitraverseTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/CategoryTests.scala b/laws/src/main/scala/cats/laws/discipline/CategoryTests.scala
index 038fa7850a..4875bff4ea 100644
--- a/laws/src/main/scala/cats/laws/discipline/CategoryTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/CategoryTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ChoiceTests.scala b/laws/src/main/scala/cats/laws/discipline/ChoiceTests.scala
index 4db1af1176..4bc9960576 100644
--- a/laws/src/main/scala/cats/laws/discipline/ChoiceTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ChoiceTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/CoflatMapTests.scala b/laws/src/main/scala/cats/laws/discipline/CoflatMapTests.scala
index 14c4cfbe61..1f411e81c1 100644
--- a/laws/src/main/scala/cats/laws/discipline/CoflatMapTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/CoflatMapTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/CommutativeApplicativeTests.scala b/laws/src/main/scala/cats/laws/discipline/CommutativeApplicativeTests.scala
index 483e1701de..3a083aa07f 100644
--- a/laws/src/main/scala/cats/laws/discipline/CommutativeApplicativeTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/CommutativeApplicativeTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/CommutativeApplyTests.scala b/laws/src/main/scala/cats/laws/discipline/CommutativeApplyTests.scala
index 58790dfb7c..80e83823f7 100644
--- a/laws/src/main/scala/cats/laws/discipline/CommutativeApplyTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/CommutativeApplyTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/CommutativeArrowTests.scala b/laws/src/main/scala/cats/laws/discipline/CommutativeArrowTests.scala
index 6a9fb28532..26a68386f4 100644
--- a/laws/src/main/scala/cats/laws/discipline/CommutativeArrowTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/CommutativeArrowTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/CommutativeFlatMapTests.scala b/laws/src/main/scala/cats/laws/discipline/CommutativeFlatMapTests.scala
index f83585153e..f531804f88 100644
--- a/laws/src/main/scala/cats/laws/discipline/CommutativeFlatMapTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/CommutativeFlatMapTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/CommutativeMonadTests.scala b/laws/src/main/scala/cats/laws/discipline/CommutativeMonadTests.scala
index 0407fc107c..3f118e9477 100644
--- a/laws/src/main/scala/cats/laws/discipline/CommutativeMonadTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/CommutativeMonadTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ComonadTests.scala b/laws/src/main/scala/cats/laws/discipline/ComonadTests.scala
index 342f39fa0b..b07c01b2eb 100644
--- a/laws/src/main/scala/cats/laws/discipline/ComonadTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ComonadTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ComposeTests.scala b/laws/src/main/scala/cats/laws/discipline/ComposeTests.scala
index ff82550a4a..ce7c46081f 100644
--- a/laws/src/main/scala/cats/laws/discipline/ComposeTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ComposeTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ContravariantMonoidalTests.scala b/laws/src/main/scala/cats/laws/discipline/ContravariantMonoidalTests.scala
index 171875e1e9..8f27105243 100644
--- a/laws/src/main/scala/cats/laws/discipline/ContravariantMonoidalTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ContravariantMonoidalTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ContravariantSemigroupalTests.scala b/laws/src/main/scala/cats/laws/discipline/ContravariantSemigroupalTests.scala
index 47bbdc0df2..0eab542ad6 100644
--- a/laws/src/main/scala/cats/laws/discipline/ContravariantSemigroupalTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ContravariantSemigroupalTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ContravariantTests.scala b/laws/src/main/scala/cats/laws/discipline/ContravariantTests.scala
index cd0d72d643..0688dc5093 100644
--- a/laws/src/main/scala/cats/laws/discipline/ContravariantTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ContravariantTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/DeferTests.scala b/laws/src/main/scala/cats/laws/discipline/DeferTests.scala
index 6fb50fa6b2..9951ffa23f 100644
--- a/laws/src/main/scala/cats/laws/discipline/DeferTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/DeferTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/DistributiveTests.scala b/laws/src/main/scala/cats/laws/discipline/DistributiveTests.scala
index 66546831c6..7e6b5560e7 100644
--- a/laws/src/main/scala/cats/laws/discipline/DistributiveTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/DistributiveTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/Eq.scala b/laws/src/main/scala/cats/laws/discipline/Eq.scala
index 0ddf866bf9..0c6c55a304 100644
--- a/laws/src/main/scala/cats/laws/discipline/Eq.scala
+++ b/laws/src/main/scala/cats/laws/discipline/Eq.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ExhaustiveCheck.scala b/laws/src/main/scala/cats/laws/discipline/ExhaustiveCheck.scala
index 3db53269c5..2a244f9a41 100644
--- a/laws/src/main/scala/cats/laws/discipline/ExhaustiveCheck.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ExhaustiveCheck.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/FlatMapTests.scala b/laws/src/main/scala/cats/laws/discipline/FlatMapTests.scala
index 4a91d99fc6..c048b118c4 100644
--- a/laws/src/main/scala/cats/laws/discipline/FlatMapTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/FlatMapTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/FoldableTests.scala b/laws/src/main/scala/cats/laws/discipline/FoldableTests.scala
index 6082ecd95a..3027591b27 100644
--- a/laws/src/main/scala/cats/laws/discipline/FoldableTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/FoldableTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/FunctorFilterTests.scala b/laws/src/main/scala/cats/laws/discipline/FunctorFilterTests.scala
index be33e0be87..f3898c6350 100644
--- a/laws/src/main/scala/cats/laws/discipline/FunctorFilterTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/FunctorFilterTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/FunctorTests.scala b/laws/src/main/scala/cats/laws/discipline/FunctorTests.scala
index c751475eaa..f27fc7e7e6 100644
--- a/laws/src/main/scala/cats/laws/discipline/FunctorTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/FunctorTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/InjectKTests.scala b/laws/src/main/scala/cats/laws/discipline/InjectKTests.scala
index a6eed7fe61..27046fbb0c 100644
--- a/laws/src/main/scala/cats/laws/discipline/InjectKTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/InjectKTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/InjectTests.scala b/laws/src/main/scala/cats/laws/discipline/InjectTests.scala
index 8619d84cb9..14427cfffd 100644
--- a/laws/src/main/scala/cats/laws/discipline/InjectTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/InjectTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/InvariantMonoidalTests.scala b/laws/src/main/scala/cats/laws/discipline/InvariantMonoidalTests.scala
index fda5324eec..cf488fad19 100644
--- a/laws/src/main/scala/cats/laws/discipline/InvariantMonoidalTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/InvariantMonoidalTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/InvariantSemigroupalTests.scala b/laws/src/main/scala/cats/laws/discipline/InvariantSemigroupalTests.scala
index 4717d27bd1..618a55558a 100644
--- a/laws/src/main/scala/cats/laws/discipline/InvariantSemigroupalTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/InvariantSemigroupalTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/InvariantTests.scala b/laws/src/main/scala/cats/laws/discipline/InvariantTests.scala
index 14dbc2441a..8634d0f1b7 100644
--- a/laws/src/main/scala/cats/laws/discipline/InvariantTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/InvariantTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/MiniInt.scala b/laws/src/main/scala/cats/laws/discipline/MiniInt.scala
index 2958124c70..af67cfa642 100644
--- a/laws/src/main/scala/cats/laws/discipline/MiniInt.scala
+++ b/laws/src/main/scala/cats/laws/discipline/MiniInt.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/MonadErrorTests.scala b/laws/src/main/scala/cats/laws/discipline/MonadErrorTests.scala
index 8673fb7b1b..f1d839aed9 100644
--- a/laws/src/main/scala/cats/laws/discipline/MonadErrorTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/MonadErrorTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/MonadTests.scala b/laws/src/main/scala/cats/laws/discipline/MonadTests.scala
index 82459d34d6..bd7a2451e5 100644
--- a/laws/src/main/scala/cats/laws/discipline/MonadTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/MonadTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/MonoidKTests.scala b/laws/src/main/scala/cats/laws/discipline/MonoidKTests.scala
index f1465a3e1a..17f2ca9be7 100644
--- a/laws/src/main/scala/cats/laws/discipline/MonoidKTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/MonoidKTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/NonEmptyAlternativeTests.scala b/laws/src/main/scala/cats/laws/discipline/NonEmptyAlternativeTests.scala
index 32782057ac..e72aab5fe0 100644
--- a/laws/src/main/scala/cats/laws/discipline/NonEmptyAlternativeTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/NonEmptyAlternativeTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/NonEmptyParallelTests.scala b/laws/src/main/scala/cats/laws/discipline/NonEmptyParallelTests.scala
index ef92f5e834..2729b5aa4e 100644
--- a/laws/src/main/scala/cats/laws/discipline/NonEmptyParallelTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/NonEmptyParallelTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/NonEmptyTraverseTests.scala b/laws/src/main/scala/cats/laws/discipline/NonEmptyTraverseTests.scala
index 011c3ae97a..155115ea0f 100644
--- a/laws/src/main/scala/cats/laws/discipline/NonEmptyTraverseTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/NonEmptyTraverseTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.laws.discipline
 
 import org.scalacheck.{Arbitrary, Cogen, Prop}
diff --git a/laws/src/main/scala/cats/laws/discipline/ParallelTests.scala b/laws/src/main/scala/cats/laws/discipline/ParallelTests.scala
index 93fcb7dfa4..e29fd1a531 100644
--- a/laws/src/main/scala/cats/laws/discipline/ParallelTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ParallelTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ProfunctorTests.scala b/laws/src/main/scala/cats/laws/discipline/ProfunctorTests.scala
index 3e41109098..66fec28ce7 100644
--- a/laws/src/main/scala/cats/laws/discipline/ProfunctorTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ProfunctorTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ReducibleTests.scala b/laws/src/main/scala/cats/laws/discipline/ReducibleTests.scala
index 3ad7696241..2de4e20681 100644
--- a/laws/src/main/scala/cats/laws/discipline/ReducibleTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ReducibleTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/RepresentableTests.scala b/laws/src/main/scala/cats/laws/discipline/RepresentableTests.scala
index 22e290682e..4e5441e256 100644
--- a/laws/src/main/scala/cats/laws/discipline/RepresentableTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/RepresentableTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.laws.discipline
 
 import cats.{Eq, Representable}
diff --git a/laws/src/main/scala/cats/laws/discipline/SemigroupKTests.scala b/laws/src/main/scala/cats/laws/discipline/SemigroupKTests.scala
index 11964342c3..f68bd2d426 100644
--- a/laws/src/main/scala/cats/laws/discipline/SemigroupKTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/SemigroupKTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/SemigroupalTests.scala b/laws/src/main/scala/cats/laws/discipline/SemigroupalTests.scala
index 2eeae04eb1..94400317de 100644
--- a/laws/src/main/scala/cats/laws/discipline/SemigroupalTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/SemigroupalTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/ShortCircuitingTests.scala b/laws/src/main/scala/cats/laws/discipline/ShortCircuitingTests.scala
index 91234710ea..f9a79baae0 100644
--- a/laws/src/main/scala/cats/laws/discipline/ShortCircuitingTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/ShortCircuitingTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.laws.discipline
 
 import cats.laws.ShortCircuitingLaws
diff --git a/laws/src/main/scala/cats/laws/discipline/StrongTests.scala b/laws/src/main/scala/cats/laws/discipline/StrongTests.scala
index 963578e77e..661845f556 100644
--- a/laws/src/main/scala/cats/laws/discipline/StrongTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/StrongTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/TraverseFilterTests.scala b/laws/src/main/scala/cats/laws/discipline/TraverseFilterTests.scala
index ce75f2cee7..990092fc83 100644
--- a/laws/src/main/scala/cats/laws/discipline/TraverseFilterTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/TraverseFilterTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/TraverseTests.scala b/laws/src/main/scala/cats/laws/discipline/TraverseTests.scala
index cfb3d19db3..2cbbdc7d1c 100644
--- a/laws/src/main/scala/cats/laws/discipline/TraverseTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/TraverseTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/UnorderedFoldableTests.scala b/laws/src/main/scala/cats/laws/discipline/UnorderedFoldableTests.scala
index 8eccd46390..8962e658e1 100644
--- a/laws/src/main/scala/cats/laws/discipline/UnorderedFoldableTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/UnorderedFoldableTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/UnorderedTraverseTests.scala b/laws/src/main/scala/cats/laws/discipline/UnorderedTraverseTests.scala
index cdcb86cf2c..c622d91265 100644
--- a/laws/src/main/scala/cats/laws/discipline/UnorderedTraverseTests.scala
+++ b/laws/src/main/scala/cats/laws/discipline/UnorderedTraverseTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/arbitrary.scala b/laws/src/main/scala/cats/laws/discipline/arbitrary.scala
index 43b9752137..c95122856c 100644
--- a/laws/src/main/scala/cats/laws/discipline/arbitrary.scala
+++ b/laws/src/main/scala/cats/laws/discipline/arbitrary.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/laws/src/main/scala/cats/laws/discipline/package.scala b/laws/src/main/scala/cats/laws/discipline/package.scala
index fba55d6db7..7273d6f132 100644
--- a/laws/src/main/scala/cats/laws/discipline/package.scala
+++ b/laws/src/main/scala/cats/laws/discipline/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 
diff --git a/laws/src/main/scala/cats/laws/package.scala b/laws/src/main/scala/cats/laws/package.scala
index aafeffb16e..a4aeca060a 100644
--- a/laws/src/main/scala/cats/laws/package.scala
+++ b/laws/src/main/scala/cats/laws/package.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 
 package object laws {
diff --git a/laws/src/test/scala/cats/laws/discipline/MonadTestsTests.scala b/laws/src/test/scala/cats/laws/discipline/MonadTestsTests.scala
index a5de3524e0..3cce492863 100644
--- a/laws/src/test/scala/cats/laws/discipline/MonadTestsTests.scala
+++ b/laws/src/test/scala/cats/laws/discipline/MonadTestsTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package laws
 package discipline
diff --git a/mima.sbt b/mima.sbt
new file mode 100644
index 0000000000..eb61bdc899
--- /dev/null
+++ b/mima.sbt
@@ -0,0 +1,181 @@
+import com.typesafe.tools.mima.core.ProblemFilters._
+import com.typesafe.tools.mima.core._
+
+ThisBuild / mimaBinaryIssueFilters ++= {
+  // Only sealed abstract classes that provide implicit instances to companion objects are allowed here, since they don't affect usage outside of the file.
+  Seq(
+    exclude[DirectMissingMethodProblem]("cats.data.OptionTInstances2.catsDataTraverseForOptionT"),
+    exclude[DirectMissingMethodProblem]("cats.data.KleisliInstances1.catsDataCommutativeArrowForKleisliId"),
+    exclude[DirectMissingMethodProblem]("cats.data.OptionTInstances1.catsDataMonoidKForOptionT"),
+    exclude[DirectMissingMethodProblem]("cats.data.OptionTInstances0.catsDataMonoidForOptionT"),
+    exclude[DirectMissingMethodProblem]("cats.data.KleisliInstances0.catsDataMonadForKleisliId"),
+    exclude[DirectMissingMethodProblem]("cats.data.KleisliInstances1.catsDataCommutativeArrowForKleisli"),
+    exclude[DirectMissingMethodProblem]("cats.data.KleisliInstances4.catsDataCommutativeFlatMapForKleisli"),
+    exclude[DirectMissingMethodProblem]("cats.data.IRWSTInstances1.catsDataStrongForIRWST"),
+    exclude[DirectMissingMethodProblem]("cats.data.OptionTInstances1.catsDataMonadErrorMonadForOptionT"),
+    exclude[DirectMissingMethodProblem]("cats.data.OptionTInstances1.catsDataMonadErrorForOptionT")
+  ) ++
+    // These things are Ops classes that shouldn't have the `value` exposed. These should have never been public because they don't
+    // provide any value. Making them private because of issues like #2514 and #2613.
+    Seq(
+      exclude[DirectMissingMethodProblem]("cats.ApplicativeError#LiftFromOptionPartially.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.Const#OfPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.EitherT#CondPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.EitherT#FromEitherPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.EitherT#FromOptionPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.EitherT#LeftPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.EitherT#LeftTPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.EitherT#PurePartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.EitherT#RightPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.IorT#BothTPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.IorT#CondPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.IorT#FromEitherPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.IorT#FromIorPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.IorT#FromOptionPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.IorT#LeftPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.IorT#LeftTPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.IorT#PurePartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.IorT#RightPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.NonEmptyChainOps.value"),
+      exclude[DirectMissingMethodProblem]("cats.data.OptionT#FromOptionPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.OptionT#PurePartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.data.Validated#CatchOnlyPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.free.Free#FreeInjectKPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.free.Free#FreeLiftInjectKPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.free.FreeT#FreeTLiftInjectKPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ApplicativeErrorIdOps.e"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ApplicativeErrorOps.fa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ApplicativeIdOps.a"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ApplicativeOps.fa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ApplyOps.fa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.BinestedIdOps.value"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.BitraverseOps.fab"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.DistributiveOps.fa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EitherIdOps.obj"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EitherIdOpsBinCompat0.value"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EitherSyntax#CatchOnlyPartiallyApplied.dummy"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EitherKOps.fa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EitherObjectOps.either"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EitherOps.eab"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EitherOpsBinCompat0.value"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.FlatMapIdOps.a"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.FlatMapOps.fa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.FlatMapOptionOps.fopta"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.FlattenOps.ffa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.FoldableOps.fa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.GuardOps.condition"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.IfMOps.fa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.IndexOps.fa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.IorIdOps.a"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.LeftOps.left"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ListOps.la"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ListOpsBinCompat0.la"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.MonadErrorOps.fa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.MonadErrorRethrowOps.fea"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.MonadIdOps.a"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.MonadOps.fa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.MonoidOps.lhs"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.NestedBitraverseOps.fgagb"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.NestedFoldableOps.fga"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.NestedIdOps.value"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.NestedReducibleOps.fga"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.OptionIdOps.a"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.OptionOps.oa"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ParallelApOps.ma"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ParallelFlatSequenceOps.tmta"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ParallelFlatTraversableOps.ta"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ParallelSequence_Ops.tma"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ParallelSequenceOps.tma"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ParallelTraversable_Ops.ta"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ParallelTraversableOps.ta"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.RightOps.right"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.SeparateOps.fgab"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.SetOps.se"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.TabulateOps.f"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.TryOps.self"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.UniteOps.fga"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ValidatedExtension.self"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ValidatedIdOpsBinCompat0.a"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.ValidatedIdSyntax.a"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.VectorOps.va"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.WriterIdSyntax.a")
+    ) ++ // Only compile-time abstractions (macros) allowed here
+    Seq(
+      exclude[IncompatibleMethTypeProblem]("cats.arrow.FunctionKMacros.lift"),
+      exclude[MissingTypesProblem]("cats.arrow.FunctionKMacros$"),
+      exclude[IncompatibleMethTypeProblem]("cats.arrow.FunctionKMacros#Lifter.this"),
+      exclude[IncompatibleResultTypeProblem]("cats.arrow.FunctionKMacros#Lifter.c"),
+      exclude[DirectMissingMethodProblem]("cats.arrow.FunctionKMacros.compatNewTypeName")
+    ) ++ // package private classes no longer needed
+    Seq(
+      exclude[MissingClassProblem]("cats.kernel.compat.scalaVersionMoreSpecific$"),
+      exclude[MissingClassProblem]("cats.kernel.compat.scalaVersionMoreSpecific"),
+      exclude[MissingClassProblem](
+        "cats.kernel.compat.scalaVersionMoreSpecific$suppressUnusedImportWarningForScalaVersionMoreSpecific"
+      )
+    ) ++ // Only narrowing of types allowed here
+    Seq(
+      exclude[IncompatibleSignatureProblem]("*")
+    ) ++ // New issues found since mima 0.8.0 (#3596, #3641)
+    Seq(
+      exclude[NewMixinForwarderProblem]("cats.kernel.Band#mcI#sp.combineN"),
+      exclude[NewMixinForwarderProblem]("cats.kernel.Band#mcD#sp.combineN"),
+      exclude[NewMixinForwarderProblem]("cats.kernel.Band#mcJ#sp.combineN"),
+      exclude[NewMixinForwarderProblem]("cats.kernel.Band.combineN"),
+      exclude[NewMixinForwarderProblem]("cats.kernel.Band#mcF#sp.combineN"),
+      exclude[NewMixinForwarderProblem]("cats.data.Tuple2KApply.product"),
+      exclude[NewMixinForwarderProblem]("cats.InvariantInstances0.catsApplicativeForArrow")
+    ) ++ // Additional methods in package-private traits
+    Seq(
+      exclude[ReversedMissingMethodProblem]("cats.data.NonEmptyCollection.grouped")
+    ) ++ // https://github.com/typelevel/cats/pull/3785
+    Seq(
+      exclude[MissingClassProblem]("cats.syntax.EqOps$mcJ$sp"),
+      exclude[MissingClassProblem]("cats.syntax.EqOps$mcD$sp"),
+      exclude[FinalClassProblem]("cats.syntax.EqOps"),
+      exclude[MissingFieldProblem]("cats.syntax.EqOps.lhs"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.unapply"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.apply"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.lhs"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy$default$1"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productPrefix"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productArity"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productElement"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productIterator"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.canEqual"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy$default$1$mcD$sp"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy$default$1$mcF$sp"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy$default$1$mcJ$sp"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.copy$default$1$mcI$sp"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productElementNames"),
+      exclude[DirectMissingMethodProblem]("cats.syntax.EqOps.productElementName"),
+      exclude[MissingClassProblem]("cats.syntax.EqOps$"),
+      exclude[MissingClassProblem]("cats.syntax.EqOps$mcF$sp"),
+      exclude[MissingClassProblem]("cats.syntax.EqOps$mcI$sp")
+    ) ++ // https://github.com/typelevel/cats/pull/3918
+    Seq(
+      exclude[MissingClassProblem]("algebra.laws.IsSerializable"),
+      exclude[MissingClassProblem]("algebra.laws.IsSerializable$")
+    ) ++ // https://github.com/typelevel/cats/pull/3987
+    Seq(
+      exclude[DirectAbstractMethodProblem]("cats.free.ContravariantCoyoneda.k"),
+      exclude[ReversedAbstractMethodProblem]("cats.free.ContravariantCoyoneda.k"),
+      exclude[DirectAbstractMethodProblem]("cats.free.Coyoneda.k"),
+      exclude[ReversedAbstractMethodProblem]("cats.free.Coyoneda.k")
+    )
+}
+
+// TODO: remove these filters after MiMa 1.1.0 is released with improved support for Scala 3
+ThisBuild / mimaBinaryIssueFilters ++= {
+  if (tlIsScala3.value)
+    Seq(
+      exclude[DirectMissingMethodProblem]("cats.free.ContravariantCoyoneda.unsafeApply"),
+      exclude[DirectMissingMethodProblem]("cats.free.ContravariantCoyoneda.ks"),
+      exclude[DirectMissingMethodProblem]("cats.free.ContravariantCoyoneda.unsafeApply"),
+      exclude[DirectMissingMethodProblem]("cats.free.Coyoneda.unsafeApply"),
+      exclude[DirectMissingMethodProblem]("cats.free.Coyoneda.ks"),
+      exclude[DirectMissingMethodProblem]("cats.free.Coyoneda.unsafeApply")
+    )
+  else Nil
+}
diff --git a/project/build.sbt b/project/build.sbt
deleted file mode 100644
index d2f41845d7..0000000000
--- a/project/build.sbt
+++ /dev/null
@@ -1 +0,0 @@
-libraryDependencies += "org.yaml" % "snakeyaml" % "1.30"
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 235362ffee..6411cd21a9 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,27 +1,12 @@
+val sbtTypelevelVersion = "0.4.7"
+addSbtPlugin("org.typelevel" % "sbt-typelevel" % sbtTypelevelVersion)
+addSbtPlugin("org.typelevel" % "sbt-typelevel-site" % sbtTypelevelVersion)
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.34")
-addSbtPlugin("com.github.sbt" % "sbt-unidoc" % "0.5.0")
-addSbtPlugin("com.github.sbt" %% "sbt-release" % "1.1.0")
-addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.1.2")
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.0")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.3")
-addSbtPlugin("com.typesafe.sbt" % "sbt-git" % "1.0.2")
 addSbtPlugin("com.github.tkawachi" % "sbt-doctest" % "0.10.0")
-addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.12")
-addSbtPlugin("com.47deg" % "sbt-microsites" % "1.3.4")
-addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.2.24")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.2.0")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.2.0")
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.7.1")
 addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.4.4")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.6")
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.11.0")
-addSbtPlugin("com.codecommit" % "sbt-github-actions" % "0.14.2")
-
-/* Temporarily disabling sbt-hydra, see #2870.
-resolvers += Resolver.url(
-  "Triplequote Plugins Releases",
-  url("https://repo.triplequote.com/artifactory/sbt-plugins-release/")
-)(Resolver.ivyStylePatterns)
-
-addSbtPlugin("com.triplequote" % "sbt-hydra" % "2.1.5")
- */
diff --git a/testkit/src/main/scala/cats/tests/Helpers.scala b/testkit/src/main/scala/cats/tests/Helpers.scala
index 5ad1be59c3..e47f1e55c0 100644
--- a/testkit/src/main/scala/cats/tests/Helpers.scala
+++ b/testkit/src/main/scala/cats/tests/Helpers.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.kernel._
diff --git a/testkit/src/main/scala/cats/tests/ListWrapper.scala b/testkit/src/main/scala/cats/tests/ListWrapper.scala
index 8b8075ebea..afb6db3e99 100644
--- a/testkit/src/main/scala/cats/tests/ListWrapper.scala
+++ b/testkit/src/main/scala/cats/tests/ListWrapper.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package tests
 
diff --git a/js/src/main/scala/cats/js/instances/future.scala b/tests/js/src/test/scala/cats/js/instances/future.scala
similarity index 59%
rename from js/src/main/scala/cats/js/instances/future.scala
rename to tests/js/src/test/scala/cats/js/instances/future.scala
index 5b13b9be58..ab6e14b370 100644
--- a/js/src/main/scala/cats/js/instances/future.scala
+++ b/tests/js/src/test/scala/cats/js/instances/future.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package js
 package instances
diff --git a/js/src/test/scala/cats/tests/FutureTests.scala b/tests/js/src/test/scala/cats/tests/FutureTests.scala
similarity index 69%
rename from js/src/test/scala/cats/tests/FutureTests.scala
rename to tests/js/src/test/scala/cats/tests/FutureTests.scala
index 167e690848..00e0acb500 100644
--- a/js/src/test/scala/cats/tests/FutureTests.scala
+++ b/tests/js/src/test/scala/cats/tests/FutureTests.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.js.tests
 
 import cats.Comonad
diff --git a/jvm/src/test/scala/cats/tests/FutureSuite.scala b/tests/jvm/src/test/scala/cats/tests/FutureSuite.scala
similarity index 63%
rename from jvm/src/test/scala/cats/tests/FutureSuite.scala
rename to tests/jvm/src/test/scala/cats/tests/FutureSuite.scala
index 3d4acf7f0f..89644947a7 100644
--- a/jvm/src/test/scala/cats/tests/FutureSuite.scala
+++ b/tests/jvm/src/test/scala/cats/tests/FutureSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.jvm.tests
 
 import cats.kernel.{Eq, Semigroup}
diff --git a/native/src/test/scala/cats/native/tests/FutureSuite.scala b/tests/native/src/test/scala/cats/native/tests/FutureSuite.scala
similarity index 67%
rename from native/src/test/scala/cats/native/tests/FutureSuite.scala
rename to tests/native/src/test/scala/cats/native/tests/FutureSuite.scala
index 3536b7a7a6..bf9cb85e70 100644
--- a/native/src/test/scala/cats/native/tests/FutureSuite.scala
+++ b/tests/native/src/test/scala/cats/native/tests/FutureSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.native.tests
 
 import cats.kernel.laws.discipline.{MonoidTests => MonoidLawTests, SemigroupTests => SemigroupLawTests}
diff --git a/tests/src/test/scala-2.12/cats/tests/NonEmptyStreamSuite.scala b/tests/shared/src/test/scala-2.12/cats/tests/NonEmptyStreamSuite.scala
similarity index 86%
rename from tests/src/test/scala-2.12/cats/tests/NonEmptyStreamSuite.scala
rename to tests/shared/src/test/scala-2.12/cats/tests/NonEmptyStreamSuite.scala
index 6b72c700a2..cece2a83dd 100644
--- a/tests/src/test/scala-2.12/cats/tests/NonEmptyStreamSuite.scala
+++ b/tests/shared/src/test/scala-2.12/cats/tests/NonEmptyStreamSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Comonad, Eval, Functor, Monad, NonEmptyTraverse, Now, Reducible, SemigroupK, Show}
diff --git a/tests/src/test/scala-2.12/cats/tests/ScalaVersionSpecific.scala b/tests/shared/src/test/scala-2.12/cats/tests/ScalaVersionSpecific.scala
similarity index 72%
rename from tests/src/test/scala-2.12/cats/tests/ScalaVersionSpecific.scala
rename to tests/shared/src/test/scala-2.12/cats/tests/ScalaVersionSpecific.scala
index a705e7224c..62b1a1346b 100644
--- a/tests/src/test/scala-2.12/cats/tests/ScalaVersionSpecific.scala
+++ b/tests/shared/src/test/scala-2.12/cats/tests/ScalaVersionSpecific.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.kernel.{Eq, Order}
diff --git a/tests/src/test/scala-2.13+/cats/tests/ArraySeqSuite.scala b/tests/shared/src/test/scala-2.13+/cats/tests/ArraySeqSuite.scala
similarity index 73%
rename from tests/src/test/scala-2.13+/cats/tests/ArraySeqSuite.scala
rename to tests/shared/src/test/scala-2.13+/cats/tests/ArraySeqSuite.scala
index 1b2e8ba687..9c77c3cbdf 100644
--- a/tests/src/test/scala-2.13+/cats/tests/ArraySeqSuite.scala
+++ b/tests/shared/src/test/scala-2.13+/cats/tests/ArraySeqSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, Alternative, CoflatMap, Monad, MonoidK, Traverse, TraverseFilter}
diff --git a/tests/shared/src/test/scala-2.13+/cats/tests/FoldableLazyListSuite.scala b/tests/shared/src/test/scala-2.13+/cats/tests/FoldableLazyListSuite.scala
new file mode 100644
index 0000000000..285b933fe1
--- /dev/null
+++ b/tests/shared/src/test/scala-2.13+/cats/tests/FoldableLazyListSuite.scala
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+class FoldableLazyListSuite extends FoldableSuite[LazyList]("lazyList") {
+  def iterator[T](list: LazyList[T]): Iterator[T] = list.iterator
+}
diff --git a/tests/src/test/scala-2.13+/cats/tests/LazyListSuite.scala b/tests/shared/src/test/scala-2.13+/cats/tests/LazyListSuite.scala
similarity index 75%
rename from tests/src/test/scala-2.13+/cats/tests/LazyListSuite.scala
rename to tests/shared/src/test/scala-2.13+/cats/tests/LazyListSuite.scala
index 6a5365ab8a..6f33e857eb 100644
--- a/tests/src/test/scala-2.13+/cats/tests/LazyListSuite.scala
+++ b/tests/shared/src/test/scala-2.13+/cats/tests/LazyListSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, Alternative, CoflatMap, Monad, Semigroupal, Traverse, TraverseFilter}
diff --git a/tests/src/test/scala-2.13+/cats/tests/NonEmptyLazyListSuite.scala b/tests/shared/src/test/scala-2.13+/cats/tests/NonEmptyLazyListSuite.scala
similarity index 87%
rename from tests/src/test/scala-2.13+/cats/tests/NonEmptyLazyListSuite.scala
rename to tests/shared/src/test/scala-2.13+/cats/tests/NonEmptyLazyListSuite.scala
index 40c1dad831..0d8b2dd44b 100644
--- a/tests/src/test/scala-2.13+/cats/tests/NonEmptyLazyListSuite.scala
+++ b/tests/shared/src/test/scala-2.13+/cats/tests/NonEmptyLazyListSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, Bimonad, SemigroupK, Show, Traverse}
diff --git a/tests/src/test/scala-2.13+/cats/tests/ScalaVersionSpecific.scala b/tests/shared/src/test/scala-2.13+/cats/tests/ScalaVersionSpecific.scala
similarity index 89%
rename from tests/src/test/scala-2.13+/cats/tests/ScalaVersionSpecific.scala
rename to tests/shared/src/test/scala-2.13+/cats/tests/ScalaVersionSpecific.scala
index 3ee4889d92..52ce3cc375 100644
--- a/tests/src/test/scala-2.13+/cats/tests/ScalaVersionSpecific.scala
+++ b/tests/shared/src/test/scala-2.13+/cats/tests/ScalaVersionSpecific.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala-2.x/cats/tests/FunctionKLiftSuite.scala b/tests/shared/src/test/scala-2/cats/tests/FunctionKLiftSuite.scala
similarity index 66%
rename from tests/src/test/scala-2.x/cats/tests/FunctionKLiftSuite.scala
rename to tests/shared/src/test/scala-2/cats/tests/FunctionKLiftSuite.scala
index 26dc277668..12cd433fb8 100644
--- a/tests/src/test/scala-2.x/cats/tests/FunctionKLiftSuite.scala
+++ b/tests/shared/src/test/scala-2/cats/tests/FunctionKLiftSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.Applicative
diff --git a/tests/src/test/scala/cats/tests/AlgebraInvariantSuite.scala b/tests/shared/src/test/scala/cats/tests/AlgebraInvariantSuite.scala
similarity index 91%
rename from tests/src/test/scala/cats/tests/AlgebraInvariantSuite.scala
rename to tests/shared/src/test/scala/cats/tests/AlgebraInvariantSuite.scala
index f86be7ca25..ea083a372f 100644
--- a/tests/src/test/scala/cats/tests/AlgebraInvariantSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/AlgebraInvariantSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{CommutativeApplicative, CommutativeApply, Invariant, InvariantMonoidal}
diff --git a/tests/shared/src/test/scala/cats/tests/AlignSuite.scala b/tests/shared/src/test/scala/cats/tests/AlignSuite.scala
new file mode 100644
index 0000000000..eac3c3a2d5
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/AlignSuite.scala
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.Align
+import cats.kernel.laws.discipline.SemigroupTests
+
+class AlignSuite extends CatsSuite {
+  {
+    val optionSemigroup = Align.semigroup[Option, Int]
+    checkAll("Align[Option].semigroup", SemigroupTests[Option[Int]](optionSemigroup).semigroup)
+
+    val listSemigroup = Align.semigroup[List, String]
+    checkAll("Align[List].semigroup", SemigroupTests[List[String]](listSemigroup).semigroup)
+  }
+}
diff --git a/tests/src/test/scala/cats/tests/AlternativeSuite.scala b/tests/shared/src/test/scala/cats/tests/AlternativeSuite.scala
similarity index 71%
rename from tests/src/test/scala/cats/tests/AlternativeSuite.scala
rename to tests/shared/src/test/scala/cats/tests/AlternativeSuite.scala
index d715c7f5f7..ec3858045b 100644
--- a/tests/src/test/scala/cats/tests/AlternativeSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/AlternativeSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.Alternative
diff --git a/tests/src/test/scala/cats/tests/AndThenSuite.scala b/tests/shared/src/test/scala/cats/tests/AndThenSuite.scala
similarity index 85%
rename from tests/src/test/scala/cats/tests/AndThenSuite.scala
rename to tests/shared/src/test/scala/cats/tests/AndThenSuite.scala
index b5d5f3dee4..220ac97bd9 100644
--- a/tests/src/test/scala/cats/tests/AndThenSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/AndThenSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Contravariant, ContravariantMonoidal, Monad, Semigroupal}
diff --git a/tests/src/test/scala/cats/tests/ApplicativeErrorSuite.scala b/tests/shared/src/test/scala/cats/tests/ApplicativeErrorSuite.scala
similarity index 77%
rename from tests/src/test/scala/cats/tests/ApplicativeErrorSuite.scala
rename to tests/shared/src/test/scala/cats/tests/ApplicativeErrorSuite.scala
index 9eb7acc038..631d72b685 100644
--- a/tests/src/test/scala/cats/tests/ApplicativeErrorSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/ApplicativeErrorSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.ApplicativeError
diff --git a/tests/src/test/scala/cats/tests/ApplicativeSuite.scala b/tests/shared/src/test/scala/cats/tests/ApplicativeSuite.scala
similarity index 72%
rename from tests/src/test/scala/cats/tests/ApplicativeSuite.scala
rename to tests/shared/src/test/scala/cats/tests/ApplicativeSuite.scala
index bca6055deb..b71625bd5b 100644
--- a/tests/src/test/scala/cats/tests/ApplicativeSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/ApplicativeSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, Applicative, Apply, CoflatMap}
diff --git a/tests/src/test/scala/cats/tests/AsSuite.scala b/tests/shared/src/test/scala/cats/tests/AsSuite.scala
similarity index 80%
rename from tests/src/test/scala/cats/tests/AsSuite.scala
rename to tests/shared/src/test/scala/cats/tests/AsSuite.scala
index a2820cbfbe..559e2f9745 100644
--- a/tests/src/test/scala/cats/tests/AsSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/AsSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.kernel.Eq
diff --git a/tests/shared/src/test/scala/cats/tests/BifoldableSuite.scala b/tests/shared/src/test/scala/cats/tests/BifoldableSuite.scala
new file mode 100644
index 0000000000..f5821e1cde
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/BifoldableSuite.scala
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.Bifoldable
+import cats.laws.discipline.{BifoldableTests, SerializableTests}
+import cats.syntax.either._
+import cats.syntax.eq._
+
+class BifoldableSuite extends CatsSuite {
+  type EitherEither[A, B] = Either[Either[A, B], Either[A, B]]
+  val eitherComposeEither: Bifoldable[EitherEither] =
+    Bifoldable[Either].compose[Either]
+
+  checkAll("Either compose Either", BifoldableTests(eitherComposeEither).bifoldable[Int, Int, Int])
+  checkAll("Bifoldable[Either compose Either]", SerializableTests.serializable(eitherComposeEither))
+
+  test("bifold works for 2 monoids") {
+    assert(Bifoldable[Either].bifold(Either.right[Int, String]("something")) === ((0, "something")))
+    assert(Bifoldable[Either].bifold(Either.left[Int, String](5)) === ((5, "")))
+  }
+}
diff --git a/tests/shared/src/test/scala/cats/tests/BifunctorSuite.scala b/tests/shared/src/test/scala/cats/tests/BifunctorSuite.scala
new file mode 100644
index 0000000000..f0904a15a9
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/BifunctorSuite.scala
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.{Bifunctor, Functor}
+import cats.laws.discipline.{BifunctorTests, FunctorTests, SerializableTests}
+
+class BifunctorSuite extends CatsSuite {
+  type Tuple2Either[A, B] = (Either[A, B], Either[A, B])
+  val tuple2ComposeEither: Bifunctor[Tuple2Either] =
+    Bifunctor[Tuple2].compose[Either]
+
+  checkAll("Tuple2 compose Either",
+           BifunctorTests(tuple2ComposeEither).bifunctor[Int, Int, Int, String, String, String]
+  )
+  checkAll("Bifunctor[Tuple2 compose Either]", SerializableTests.serializable(tuple2ComposeEither))
+
+  {
+    type LeftFunctor[A] = (Either[A, Int], Either[A, Int])
+    implicit val leftFunctor: Functor[LeftFunctor] = tuple2ComposeEither.leftFunctor
+    checkAll("Bifunctor[Tuple2 compose Either].leftFunctor", FunctorTests[LeftFunctor].functor[Int, Int, Int])
+  }
+
+  {
+    type RightFunctor[A] = (Either[Int, A], Either[Int, A])
+    implicit val leftFunctor: Functor[RightFunctor] = tuple2ComposeEither.rightFunctor
+    checkAll("Bifunctor[Tuple2 compose Either].rightFunctor", FunctorTests[RightFunctor].functor[Int, Int, Int])
+  }
+}
diff --git a/tests/src/test/scala/cats/tests/BinCodecInvariantMonoidalSuite.scala b/tests/shared/src/test/scala/cats/tests/BinCodecInvariantMonoidalSuite.scala
similarity index 85%
rename from tests/src/test/scala/cats/tests/BinCodecInvariantMonoidalSuite.scala
rename to tests/shared/src/test/scala/cats/tests/BinCodecInvariantMonoidalSuite.scala
index f5bc3ed039..2e885cef65 100644
--- a/tests/src/test/scala/cats/tests/BinCodecInvariantMonoidalSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/BinCodecInvariantMonoidalSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{InvariantMonoidal, InvariantSemigroupal}
diff --git a/tests/src/test/scala/cats/tests/BinestedSuite.scala b/tests/shared/src/test/scala/cats/tests/BinestedSuite.scala
similarity index 74%
rename from tests/src/test/scala/cats/tests/BinestedSuite.scala
rename to tests/shared/src/test/scala/cats/tests/BinestedSuite.scala
index ed7223ebde..f6d2825ef4 100644
--- a/tests/src/test/scala/cats/tests/BinestedSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/BinestedSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Bifoldable, Bifunctor, Bitraverse, Foldable, Functor, Traverse}
diff --git a/tests/shared/src/test/scala/cats/tests/BitSetSuite.scala b/tests/shared/src/test/scala/cats/tests/BitSetSuite.scala
new file mode 100644
index 0000000000..f3989a0566
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/BitSetSuite.scala
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.syntax.show._
+import org.scalacheck.Arbitrary
+import org.scalacheck.Arbitrary.arbitrary
+import scala.collection.immutable.BitSet
+import cats.syntax.eq._
+import org.scalacheck.Prop._
+
+class BitSetSuite extends CatsSuite {
+  implicit val arbitraryBitSet: Arbitrary[BitSet] =
+    Arbitrary(arbitrary[List[Short]].map(ns => BitSet(ns.map(_ & 0xffff): _*)))
+
+  test("show BitSet") {
+    assert(BitSet(1, 1, 2, 3).show === "BitSet(1, 2, 3)")
+    assert(BitSet.empty.show === "BitSet()")
+
+    forAll { (fs: BitSet) =>
+      assert(fs.show === (fs.toString))
+    }
+  }
+
+}
diff --git a/tests/shared/src/test/scala/cats/tests/BitraverseSuite.scala b/tests/shared/src/test/scala/cats/tests/BitraverseSuite.scala
new file mode 100644
index 0000000000..ccfe0d25f1
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/BitraverseSuite.scala
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.Bitraverse
+import cats.laws.discipline.{BitraverseTests, SerializableTests}
+
+class BitraverseSuite extends CatsSuite {
+  type EitherTuple2[A, B] = Either[(A, B), (A, B)]
+  val eitherComposeTuple2: Bitraverse[EitherTuple2] =
+    Bitraverse[Either].compose[Tuple2]
+
+  checkAll("Either compose Tuple2",
+           BitraverseTests(eitherComposeTuple2).bitraverse[Option, Int, Int, Int, String, String, String]
+  )
+  checkAll("Bitraverse[Either compose Tuple2]", SerializableTests.serializable(eitherComposeTuple2))
+}
diff --git a/tests/shared/src/test/scala/cats/tests/BoundedEnumerableSuite.scala b/tests/shared/src/test/scala/cats/tests/BoundedEnumerableSuite.scala
new file mode 100644
index 0000000000..ab3ecf0b92
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/BoundedEnumerableSuite.scala
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.kernel.BoundedEnumerable
+import cats.syntax.eq._
+
+class BoundedEnumerableSuite extends CatsSuite {
+
+  test("membersAscending") {
+    assert(BoundedEnumerable[Boolean].membersAscending.toList === (List(false, true)))
+  }
+
+  test("membersDescending") {
+    assert(BoundedEnumerable[Boolean].membersDescending.toList === (List(true, false)))
+  }
+
+  test("cycleNext") {
+    assert(BoundedEnumerable[Boolean].cycleNext(false) === true)
+  }
+
+  test("cyclePrevious") {
+    assert(BoundedEnumerable[Boolean].cyclePrevious(false) === true)
+  }
+
+}
diff --git a/tests/shared/src/test/scala/cats/tests/CategorySuite.scala b/tests/shared/src/test/scala/cats/tests/CategorySuite.scala
new file mode 100644
index 0000000000..75063e8a2f
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/CategorySuite.scala
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.Endo
+import cats.arrow.Category
+import cats.kernel.laws.discipline.MonoidTests
+import cats.laws.discipline.{MiniInt, MonoidKTests, SerializableTests}
+import cats.laws.discipline.eq.catsLawsEqForFn1Exhaustive
+import cats.laws.discipline.arbitrary.{catsLawsArbitraryForMiniInt, catsLawsCogenForMiniInt}
+
+class CategorySuite extends CatsSuite {
+  val functionCategory = Category[Function1]
+
+  checkAll("Category[Function1].algebraK", MonoidKTests[Endo](functionCategory.algebraK).monoidK[MiniInt])
+  checkAll("Category[Function1].algebraK", SerializableTests.serializable(functionCategory.algebraK))
+
+  val functionAlgebra = functionCategory.algebra[MiniInt]
+  checkAll("Category[Function1].algebra[MiniInt]", MonoidTests[Endo[MiniInt]](functionAlgebra).monoid)
+}
diff --git a/tests/src/test/scala/cats/tests/CatsSuite.scala b/tests/shared/src/test/scala/cats/tests/CatsSuite.scala
similarity index 50%
rename from tests/src/test/scala/cats/tests/CatsSuite.scala
rename to tests/shared/src/test/scala/cats/tests/CatsSuite.scala
index 6e3f4cb7d7..b90ecb6593 100644
--- a/tests/src/test/scala/cats/tests/CatsSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/CatsSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.platform.Platform
diff --git a/tests/src/test/scala/cats/tests/ChainSuite.scala b/tests/shared/src/test/scala/cats/tests/ChainSuite.scala
similarity index 92%
rename from tests/src/test/scala/cats/tests/ChainSuite.scala
rename to tests/shared/src/test/scala/cats/tests/ChainSuite.scala
index 668ad05d1e..099f2bd246 100644
--- a/tests/src/test/scala/cats/tests/ChainSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/ChainSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats
 package tests
 
diff --git a/tests/src/test/scala/cats/tests/CokleisliSuite.scala b/tests/shared/src/test/scala/cats/tests/CokleisliSuite.scala
similarity index 75%
rename from tests/src/test/scala/cats/tests/CokleisliSuite.scala
rename to tests/shared/src/test/scala/cats/tests/CokleisliSuite.scala
index bd1ab83d15..6e07f0e660 100644
--- a/tests/src/test/scala/cats/tests/CokleisliSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/CokleisliSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Contravariant, Id, Monad, MonoidK, SemigroupK, Semigroupal}
diff --git a/tests/shared/src/test/scala/cats/tests/ComposeSuite.scala b/tests/shared/src/test/scala/cats/tests/ComposeSuite.scala
new file mode 100644
index 0000000000..4b19f9516f
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/ComposeSuite.scala
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.Endo
+import cats.arrow.Compose
+import cats.kernel.laws.discipline.SemigroupTests
+import cats.laws.discipline.{MiniInt, SemigroupKTests, SerializableTests}
+import cats.laws.discipline.eq.catsLawsEqForFn1Exhaustive
+import cats.laws.discipline.arbitrary._
+import cats.syntax.compose._
+
+class ComposeSuite extends CatsSuite {
+  val functionCompose = Compose[Function1]
+
+  checkAll("Compose[Function1].algebraK", SemigroupKTests[Endo](functionCompose.algebraK).semigroupK[MiniInt])
+  checkAll("Compose[Function1].algebraK", SerializableTests.serializable(functionCompose.algebraK))
+
+  val functionAlgebra = functionCompose.algebra[MiniInt]
+  checkAll("Compose[Function1].algebra[MiniInt]", SemigroupTests[Endo[MiniInt]](functionAlgebra).semigroup)
+
+  test("syntax") {
+    assertEquals((((_: Int) + 1) <<< ((_: Int) / 2))(2), 2)
+    assertEquals((((_: Int) + 1) >>> ((_: Int) / 2))(5), 3)
+  }
+}
diff --git a/tests/src/test/scala/cats/tests/ConstSuite.scala b/tests/shared/src/test/scala/cats/tests/ConstSuite.scala
similarity index 83%
rename from tests/src/test/scala/cats/tests/ConstSuite.scala
rename to tests/shared/src/test/scala/cats/tests/ConstSuite.scala
index 2e45d1095f..9ee06fe3d2 100644
--- a/tests/src/test/scala/cats/tests/ConstSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/ConstSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/ContTSuite.scala b/tests/shared/src/test/scala/cats/tests/ContTSuite.scala
similarity index 84%
rename from tests/src/test/scala/cats/tests/ContTSuite.scala
rename to tests/shared/src/test/scala/cats/tests/ContTSuite.scala
index fc104d24ca..9a47cf95bb 100644
--- a/tests/src/test/scala/cats/tests/ContTSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/ContTSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import java.util.concurrent.atomic.AtomicInteger
diff --git a/tests/src/test/scala/cats/tests/ContravariantSuite.scala b/tests/shared/src/test/scala/cats/tests/ContravariantSuite.scala
similarity index 67%
rename from tests/src/test/scala/cats/tests/ContravariantSuite.scala
rename to tests/shared/src/test/scala/cats/tests/ContravariantSuite.scala
index 14107f6373..cb50ae2960 100644
--- a/tests/src/test/scala/cats/tests/ContravariantSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/ContravariantSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Contravariant, ContravariantMonoidal, ContravariantSemigroupal}
diff --git a/tests/shared/src/test/scala/cats/tests/DurationSuite.scala b/tests/shared/src/test/scala/cats/tests/DurationSuite.scala
new file mode 100644
index 0000000000..1f50bb20d5
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/DurationSuite.scala
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.Show
+import cats.laws.discipline.SerializableTests
+import scala.concurrent.duration.{Duration, DurationInt}
+import cats.syntax.eq._
+
+class DurationSuite extends CatsSuite {
+  checkAll("Show[Duration]", SerializableTests.serializable(Show[Duration]))
+
+  test("show works for FiniteDuration") {
+    assert(Show[Duration].show(23.minutes) === "23 minutes")
+  }
+
+  test("show works for non-finite durations") {
+    assert(Show[Duration].show(Duration.Inf) === "Duration.Inf")
+    assert(Show[Duration].show(Duration.MinusInf) === "Duration.MinusInf")
+    assert(Show[Duration].show(Duration.Undefined) === "Duration.Undefined")
+  }
+}
diff --git a/tests/src/test/scala/cats/tests/EitherKSuite.scala b/tests/shared/src/test/scala/cats/tests/EitherKSuite.scala
similarity index 69%
rename from tests/src/test/scala/cats/tests/EitherKSuite.scala
rename to tests/shared/src/test/scala/cats/tests/EitherKSuite.scala
index 855da4daf2..766a5950c7 100644
--- a/tests/src/test/scala/cats/tests/EitherKSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/EitherKSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/EitherSuite.scala b/tests/shared/src/test/scala/cats/tests/EitherSuite.scala
similarity index 92%
rename from tests/src/test/scala/cats/tests/EitherSuite.scala
rename to tests/shared/src/test/scala/cats/tests/EitherSuite.scala
index 82e783e883..4055175d77 100644
--- a/tests/src/test/scala/cats/tests/EitherSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/EitherSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/EitherTSuite.scala b/tests/shared/src/test/scala/cats/tests/EitherTSuite.scala
similarity index 95%
rename from tests/src/test/scala/cats/tests/EitherTSuite.scala
rename to tests/shared/src/test/scala/cats/tests/EitherTSuite.scala
index 496acee09b..c5f73d4bce 100644
--- a/tests/src/test/scala/cats/tests/EitherTSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/EitherTSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/shared/src/test/scala/cats/tests/EqSuite.scala b/tests/shared/src/test/scala/cats/tests/EqSuite.scala
new file mode 100644
index 0000000000..f832faf99d
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/EqSuite.scala
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.{Contravariant, ContravariantMonoidal, ContravariantSemigroupal, Invariant, Semigroupal}
+import cats.kernel.Eq
+import cats.kernel.laws.discipline.SerializableTests
+import cats.laws.discipline.{ContravariantMonoidalTests, MiniInt}
+import cats.laws.discipline.arbitrary._
+import cats.laws.discipline.eq._
+
+class EqSuite extends CatsSuite {
+  Invariant[Eq]
+  Contravariant[Eq]
+  Semigroupal[Eq]
+  ContravariantSemigroupal[Eq]
+
+  checkAll("Eq", ContravariantMonoidalTests[Eq].contravariantMonoidal[MiniInt, Boolean, Boolean])
+  checkAll("ContravariantMonoidal[Eq]", SerializableTests.serializable(ContravariantMonoidal[Eq]))
+
+}
diff --git a/tests/shared/src/test/scala/cats/tests/EquivSuite.scala b/tests/shared/src/test/scala/cats/tests/EquivSuite.scala
new file mode 100644
index 0000000000..9c0d75eb71
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/EquivSuite.scala
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.{Contravariant, ContravariantMonoidal, ContravariantSemigroupal, Invariant, Semigroupal}
+import cats.laws.discipline.arbitrary._
+import cats.laws.discipline._
+import cats.laws.discipline.eq._
+
+class EquivSuite extends CatsSuite {
+
+  Invariant[Equiv]
+  Contravariant[Equiv]
+  Semigroupal[Equiv]
+  ContravariantSemigroupal[Equiv]
+  ContravariantMonoidal[Equiv]
+
+  checkAll("Contravariant[Equiv]", ContravariantTests[Equiv].contravariant[MiniInt, Int, Boolean])
+  checkAll("Semigroupal[Equiv]", SemigroupalTests[Equiv].semigroupal[MiniInt, Boolean, Boolean])
+  checkAll("ContravariantMonoidal[Equiv]",
+           ContravariantMonoidalTests[Equiv].contravariantMonoidal[MiniInt, Boolean, Boolean]
+  )
+  checkAll("ContravariantMonoidal[Equiv]", SerializableTests.serializable(ContravariantMonoidal[Equiv]))
+}
diff --git a/tests/src/test/scala/cats/tests/EvalSuite.scala b/tests/shared/src/test/scala/cats/tests/EvalSuite.scala
similarity index 89%
rename from tests/src/test/scala/cats/tests/EvalSuite.scala
rename to tests/shared/src/test/scala/cats/tests/EvalSuite.scala
index b4df9e3746..f64a780051 100644
--- a/tests/src/test/scala/cats/tests/EvalSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/EvalSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Bimonad, CommutativeMonad, Eval, Reducible}
diff --git a/tests/shared/src/test/scala/cats/tests/EvidenceSuite.scala b/tests/shared/src/test/scala/cats/tests/EvidenceSuite.scala
new file mode 100644
index 0000000000..3ad9d8506d
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/EvidenceSuite.scala
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.evidence._
+
+class EvidenceSuite extends CatsSuite {
+
+  test("Is / Leibniz") {
+
+    def cast1[A, B](as: List[A])(implicit ev: A Is B): List[B] =
+      ev.substitute(as)
+    cast1[Int, Int](1 :: 2 :: 3 :: Nil)
+
+    def cast2[A, B](as: List[A])(implicit ev: Leibniz[A, B]): List[B] =
+      ev.substitute(as)
+    cast2[Int, Int](1 :: 2 :: 3 :: Nil)
+
+  }
+
+}
diff --git a/tests/shared/src/test/scala/cats/tests/FiniteDurationSuite.scala b/tests/shared/src/test/scala/cats/tests/FiniteDurationSuite.scala
new file mode 100644
index 0000000000..c682f6e5c9
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/FiniteDurationSuite.scala
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.Show
+import cats.laws.discipline.SerializableTests
+import scala.concurrent.duration.{DurationInt, FiniteDuration}
+import cats.syntax.eq._
+
+class FiniteDurationSuite extends CatsSuite {
+  checkAll("Show[FiniteDuration]", SerializableTests.serializable(Show[FiniteDuration]))
+
+  test("show works for FiniteDuration") {
+    assert(Show[FiniteDuration].show(23.minutes) === "23 minutes")
+    assert(Show[FiniteDuration].show(10.seconds) === "10 seconds")
+  }
+}
diff --git a/tests/src/test/scala/cats/tests/FoldableSuite.scala b/tests/shared/src/test/scala/cats/tests/FoldableSuite.scala
similarity index 95%
rename from tests/src/test/scala/cats/tests/FoldableSuite.scala
rename to tests/shared/src/test/scala/cats/tests/FoldableSuite.scala
index f2c5988fcc..3ce705c88a 100644
--- a/tests/src/test/scala/cats/tests/FoldableSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/FoldableSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/FuncSuite.scala b/tests/shared/src/test/scala/cats/tests/FuncSuite.scala
similarity index 75%
rename from tests/src/test/scala/cats/tests/FuncSuite.scala
rename to tests/shared/src/test/scala/cats/tests/FuncSuite.scala
index 4f58d15454..17426bf418 100644
--- a/tests/src/test/scala/cats/tests/FuncSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/FuncSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Applicative, Apply, Contravariant, Functor, Semigroupal, Show}
diff --git a/tests/src/test/scala/cats/tests/FunctionKSuite.scala b/tests/shared/src/test/scala/cats/tests/FunctionKSuite.scala
similarity index 63%
rename from tests/src/test/scala/cats/tests/FunctionKSuite.scala
rename to tests/shared/src/test/scala/cats/tests/FunctionKSuite.scala
index e47572ab49..826a808b23 100644
--- a/tests/src/test/scala/cats/tests/FunctionKSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/FunctionKSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.arrow.FunctionK
diff --git a/tests/src/test/scala/cats/tests/FunctionSuite.scala b/tests/shared/src/test/scala/cats/tests/FunctionSuite.scala
similarity index 89%
rename from tests/src/test/scala/cats/tests/FunctionSuite.scala
rename to tests/shared/src/test/scala/cats/tests/FunctionSuite.scala
index 9a5990fd0d..e807c0d35e 100644
--- a/tests/src/test/scala/cats/tests/FunctionSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/FunctionSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{
diff --git a/tests/src/test/scala/cats/tests/FunctorSuite.scala b/tests/shared/src/test/scala/cats/tests/FunctorSuite.scala
similarity index 76%
rename from tests/src/test/scala/cats/tests/FunctorSuite.scala
rename to tests/shared/src/test/scala/cats/tests/FunctorSuite.scala
index c91eb687f7..1c22cc0870 100644
--- a/tests/src/test/scala/cats/tests/FunctorSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/FunctorSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.Functor
diff --git a/tests/shared/src/test/scala/cats/tests/GroupSuite.scala b/tests/shared/src/test/scala/cats/tests/GroupSuite.scala
new file mode 100644
index 0000000000..d6149ca942
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/GroupSuite.scala
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.kernel.Group
+import cats.kernel.laws.discipline.GroupTests
+import cats.syntax.eq._
+
+class GroupSuite extends CatsSuite {
+  test("combine minValue") {
+    assert(Group[Int].combineN(1, Int.MinValue) === (Int.MinValue))
+  }
+
+  test("combine negative") {
+    assert(Group[Int].combineN(1, -1) === -1)
+    assert(Group[Int].combineN(1, -10) === -10)
+  }
+
+  test("companion object syntax") {
+    assert(Group[Int].inverse(1) === -1)
+    assert(Group[Int].remove(1, 2) === -1)
+  }
+
+  checkAll("Int", GroupTests[Int].group)
+// float and double are *not* associative, and ScalaCheck knows
+//  checkAll("Double", GroupLaws[Double].group)
+//  checkAll("Float", GroupLaws[Float].group)
+  checkAll("Long", GroupTests[Long].group)
+}
diff --git a/tests/shared/src/test/scala/cats/tests/HashSuite.scala b/tests/shared/src/test/scala/cats/tests/HashSuite.scala
new file mode 100644
index 0000000000..4879f320fb
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/HashSuite.scala
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.{Contravariant, Invariant}
+import cats.kernel.Hash
+import cats.syntax.hash._
+
+class HashSuite extends CatsSuite {
+
+  {
+    Invariant[Hash]
+    Contravariant[Hash]
+  }
+
+  assert(1.hash == 1.hashCode)
+  assert("ABC".hash == "ABC".hashCode)
+
+}
diff --git a/tests/src/test/scala/cats/tests/IdSuite.scala b/tests/shared/src/test/scala/cats/tests/IdSuite.scala
similarity index 51%
rename from tests/src/test/scala/cats/tests/IdSuite.scala
rename to tests/shared/src/test/scala/cats/tests/IdSuite.scala
index beba92671e..58799b5f5a 100644
--- a/tests/src/test/scala/cats/tests/IdSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/IdSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.laws.discipline._
diff --git a/tests/src/test/scala/cats/tests/IdTSuite.scala b/tests/shared/src/test/scala/cats/tests/IdTSuite.scala
similarity index 80%
rename from tests/src/test/scala/cats/tests/IdTSuite.scala
rename to tests/shared/src/test/scala/cats/tests/IdTSuite.scala
index e9be3991cc..64334919bf 100644
--- a/tests/src/test/scala/cats/tests/IdTSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/IdTSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/IndexedReaderWriterStateTSuite.scala b/tests/shared/src/test/scala/cats/tests/IndexedReaderWriterStateTSuite.scala
similarity index 95%
rename from tests/src/test/scala/cats/tests/IndexedReaderWriterStateTSuite.scala
rename to tests/shared/src/test/scala/cats/tests/IndexedReaderWriterStateTSuite.scala
index 43fd416eed..82224e00ac 100644
--- a/tests/src/test/scala/cats/tests/IndexedReaderWriterStateTSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/IndexedReaderWriterStateTSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/IndexedStateTSuite.scala b/tests/shared/src/test/scala/cats/tests/IndexedStateTSuite.scala
similarity index 94%
rename from tests/src/test/scala/cats/tests/IndexedStateTSuite.scala
rename to tests/shared/src/test/scala/cats/tests/IndexedStateTSuite.scala
index 7027d72ce2..3983e406cf 100644
--- a/tests/src/test/scala/cats/tests/IndexedStateTSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/IndexedStateTSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/InjectKSuite.scala b/tests/shared/src/test/scala/cats/tests/InjectKSuite.scala
similarity index 77%
rename from tests/src/test/scala/cats/tests/InjectKSuite.scala
rename to tests/shared/src/test/scala/cats/tests/InjectKSuite.scala
index 8b068542d2..7a396b38ed 100644
--- a/tests/src/test/scala/cats/tests/InjectKSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/InjectKSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{:<:, Functor, InjectK}
diff --git a/tests/src/test/scala/cats/tests/InjectSuite.scala b/tests/shared/src/test/scala/cats/tests/InjectSuite.scala
similarity index 62%
rename from tests/src/test/scala/cats/tests/InjectSuite.scala
rename to tests/shared/src/test/scala/cats/tests/InjectSuite.scala
index 8362dc891c..15d01b6ff1 100644
--- a/tests/src/test/scala/cats/tests/InjectSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/InjectSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.Inject
diff --git a/tests/src/test/scala/cats/tests/IorSuite.scala b/tests/shared/src/test/scala/cats/tests/IorSuite.scala
similarity index 89%
rename from tests/src/test/scala/cats/tests/IorSuite.scala
rename to tests/shared/src/test/scala/cats/tests/IorSuite.scala
index 84602deea9..be4edb37bd 100644
--- a/tests/src/test/scala/cats/tests/IorSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/IorSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Bitraverse, MonadError, Semigroupal, Show, Traverse}
diff --git a/tests/src/test/scala/cats/tests/IorTSuite.scala b/tests/shared/src/test/scala/cats/tests/IorTSuite.scala
similarity index 92%
rename from tests/src/test/scala/cats/tests/IorTSuite.scala
rename to tests/shared/src/test/scala/cats/tests/IorTSuite.scala
index 837ddb33d5..122eb3a422 100644
--- a/tests/src/test/scala/cats/tests/IorTSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/IorTSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/IsSuite.scala b/tests/shared/src/test/scala/cats/tests/IsSuite.scala
similarity index 54%
rename from tests/src/test/scala/cats/tests/IsSuite.scala
rename to tests/shared/src/test/scala/cats/tests/IsSuite.scala
index 4c18d75751..19c43ea178 100644
--- a/tests/src/test/scala/cats/tests/IsSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/IsSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.arrow._
diff --git a/tests/src/test/scala/cats/tests/KernelContravariantSuite.scala b/tests/shared/src/test/scala/cats/tests/KernelContravariantSuite.scala
similarity index 60%
rename from tests/src/test/scala/cats/tests/KernelContravariantSuite.scala
rename to tests/shared/src/test/scala/cats/tests/KernelContravariantSuite.scala
index 1d703c81b1..29a82c5341 100644
--- a/tests/src/test/scala/cats/tests/KernelContravariantSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/KernelContravariantSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Contravariant, ContravariantSemigroupal, Invariant, Semigroupal}
diff --git a/tests/src/test/scala/cats/tests/KleisliSuite.scala b/tests/shared/src/test/scala/cats/tests/KleisliSuite.scala
similarity index 93%
rename from tests/src/test/scala/cats/tests/KleisliSuite.scala
rename to tests/shared/src/test/scala/cats/tests/KleisliSuite.scala
index ca7e7624ad..644f102ac8 100644
--- a/tests/src/test/scala/cats/tests/KleisliSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/KleisliSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/ListSuite.scala b/tests/shared/src/test/scala/cats/tests/ListSuite.scala
similarity index 76%
rename from tests/src/test/scala/cats/tests/ListSuite.scala
rename to tests/shared/src/test/scala/cats/tests/ListSuite.scala
index ff17f0ca22..8bb06f2d22 100644
--- a/tests/src/test/scala/cats/tests/ListSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/ListSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, Alternative, CoflatMap, Monad, Semigroupal, Traverse, TraverseFilter}
diff --git a/tests/src/test/scala/cats/tests/MapSuite.scala b/tests/shared/src/test/scala/cats/tests/MapSuite.scala
similarity index 71%
rename from tests/src/test/scala/cats/tests/MapSuite.scala
rename to tests/shared/src/test/scala/cats/tests/MapSuite.scala
index 29b58941b4..c627043918 100644
--- a/tests/src/test/scala/cats/tests/MapSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/MapSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, FlatMap, FunctorFilter, MonoidK, Semigroupal, Show, UnorderedTraverse}
diff --git a/tests/src/test/scala/cats/tests/MiniIntSuite.scala b/tests/shared/src/test/scala/cats/tests/MiniIntSuite.scala
similarity index 60%
rename from tests/src/test/scala/cats/tests/MiniIntSuite.scala
rename to tests/shared/src/test/scala/cats/tests/MiniIntSuite.scala
index 200b1eb813..274992e72a 100644
--- a/tests/src/test/scala/cats/tests/MiniIntSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/MiniIntSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.kernel.{BoundedSemilattice, CommutativeGroup, CommutativeMonoid, Hash, Order}
diff --git a/tests/src/test/scala/cats/tests/MonadErrorSuite.scala b/tests/shared/src/test/scala/cats/tests/MonadErrorSuite.scala
similarity index 71%
rename from tests/src/test/scala/cats/tests/MonadErrorSuite.scala
rename to tests/shared/src/test/scala/cats/tests/MonadErrorSuite.scala
index f269cdccea..dd355641f1 100644
--- a/tests/src/test/scala/cats/tests/MonadErrorSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/MonadErrorSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.kernel.Eq
diff --git a/tests/src/test/scala/cats/tests/MonadSuite.scala b/tests/shared/src/test/scala/cats/tests/MonadSuite.scala
similarity index 79%
rename from tests/src/test/scala/cats/tests/MonadSuite.scala
rename to tests/shared/src/test/scala/cats/tests/MonadSuite.scala
index e3f6672634..67e9b785c0 100644
--- a/tests/src/test/scala/cats/tests/MonadSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/MonadSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Eval, Id, Monad}
diff --git a/tests/shared/src/test/scala/cats/tests/MonoidSuite.scala b/tests/shared/src/test/scala/cats/tests/MonoidSuite.scala
new file mode 100644
index 0000000000..bfa0e6a6fd
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/MonoidSuite.scala
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.{Invariant, InvariantSemigroupal}
+import cats.kernel.Monoid
+import cats.syntax.eq._
+
+class MonoidSuite extends CatsSuite {
+  {
+    Invariant[Monoid]
+    InvariantSemigroupal[Monoid]
+  }
+
+  test("companion object syntax") {
+    assert(Monoid.empty[Int] === 0)
+    assert(Monoid.isEmpty(1) === false)
+    assert(Monoid.isEmpty(0) === true)
+  }
+}
+
+object MonoidSuite {
+  def summonInstance(): Unit = {
+    Invariant[Monoid]
+    ()
+  }
+
+}
diff --git a/tests/src/test/scala/cats/tests/NestedSuite.scala b/tests/shared/src/test/scala/cats/tests/NestedSuite.scala
similarity index 91%
rename from tests/src/test/scala/cats/tests/NestedSuite.scala
rename to tests/shared/src/test/scala/cats/tests/NestedSuite.scala
index 041b742561..1325d874c2 100644
--- a/tests/src/test/scala/cats/tests/NestedSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/NestedSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/shared/src/test/scala/cats/tests/NonEmptyAlternativeSuite.scala b/tests/shared/src/test/scala/cats/tests/NonEmptyAlternativeSuite.scala
new file mode 100644
index 0000000000..d86c0b23b7
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/NonEmptyAlternativeSuite.scala
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.NonEmptyAlternative
+import cats.laws.discipline.NonEmptyAlternativeTests
+
+class NonEmptyAlternativeSuite extends CatsSuite {
+  implicit val listWrapperNeAlternative: NonEmptyAlternative[ListWrapper] = ListWrapper.nonEmptyAlternative
+
+  checkAll("Option[Int]", NonEmptyAlternativeTests[Option].nonEmptyAlternative[Int, Int, Int])
+  checkAll("List[Int]", NonEmptyAlternativeTests[List].nonEmptyAlternative[Int, Int, Int])
+  checkAll("ListWrapper[List[Int]]", NonEmptyAlternativeTests[ListWrapper].nonEmptyAlternative[Int, Int, Int])
+  checkAll(
+    "compose ListWrapper[List[Int]]",
+    NonEmptyAlternativeTests.composed[ListWrapper, List].nonEmptyAlternative[Int, Int, Int]
+  )
+  checkAll(
+    "compose List[ListWrapper[Int]]",
+    NonEmptyAlternativeTests.composed[List, ListWrapper].nonEmptyAlternative[Int, Int, Int]
+  )
+  checkAll(
+    "compose ListWrapper[ListWrapper[Int]]",
+    NonEmptyAlternativeTests.composed[ListWrapper, ListWrapper].nonEmptyAlternative[Int, Int, Int]
+  )
+}
diff --git a/tests/src/test/scala/cats/tests/NonEmptyChainSuite.scala b/tests/shared/src/test/scala/cats/tests/NonEmptyChainSuite.scala
similarity index 87%
rename from tests/src/test/scala/cats/tests/NonEmptyChainSuite.scala
rename to tests/shared/src/test/scala/cats/tests/NonEmptyChainSuite.scala
index b85adadd01..8f22eb8f02 100644
--- a/tests/src/test/scala/cats/tests/NonEmptyChainSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/NonEmptyChainSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, Bimonad, SemigroupK, Show, Traverse}
diff --git a/tests/src/test/scala/cats/tests/NonEmptyCollectionSuite.scala b/tests/shared/src/test/scala/cats/tests/NonEmptyCollectionSuite.scala
similarity index 83%
rename from tests/src/test/scala/cats/tests/NonEmptyCollectionSuite.scala
rename to tests/shared/src/test/scala/cats/tests/NonEmptyCollectionSuite.scala
index 7b55bd95f0..aab0d423c5 100644
--- a/tests/src/test/scala/cats/tests/NonEmptyCollectionSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/NonEmptyCollectionSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.data.NonEmptyCollection
diff --git a/tests/src/test/scala/cats/tests/NonEmptyListSuite.scala b/tests/shared/src/test/scala/cats/tests/NonEmptyListSuite.scala
similarity index 93%
rename from tests/src/test/scala/cats/tests/NonEmptyListSuite.scala
rename to tests/shared/src/test/scala/cats/tests/NonEmptyListSuite.scala
index 2ee7a35033..6235ba2fb0 100644
--- a/tests/src/test/scala/cats/tests/NonEmptyListSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/NonEmptyListSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, Bimonad, Eval, NonEmptyTraverse, Now, Reducible, SemigroupK, Show}
diff --git a/tests/src/test/scala/cats/tests/NonEmptyMapSuite.scala b/tests/shared/src/test/scala/cats/tests/NonEmptyMapSuite.scala
similarity index 89%
rename from tests/src/test/scala/cats/tests/NonEmptyMapSuite.scala
rename to tests/shared/src/test/scala/cats/tests/NonEmptyMapSuite.scala
index 9d9f8be7f1..2738204776 100644
--- a/tests/src/test/scala/cats/tests/NonEmptyMapSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/NonEmptyMapSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, Eval, Foldable, Now, Semigroup, SemigroupK, Show}
diff --git a/tests/src/test/scala/cats/tests/NonEmptySetSuite.scala b/tests/shared/src/test/scala/cats/tests/NonEmptySetSuite.scala
similarity index 88%
rename from tests/src/test/scala/cats/tests/NonEmptySetSuite.scala
rename to tests/shared/src/test/scala/cats/tests/NonEmptySetSuite.scala
index c8920f428f..5841978266 100644
--- a/tests/src/test/scala/cats/tests/NonEmptySetSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/NonEmptySetSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Eval, Now, Reducible, SemigroupK, Show}
diff --git a/tests/src/test/scala/cats/tests/NonEmptyVectorSuite.scala b/tests/shared/src/test/scala/cats/tests/NonEmptyVectorSuite.scala
similarity index 94%
rename from tests/src/test/scala/cats/tests/NonEmptyVectorSuite.scala
rename to tests/shared/src/test/scala/cats/tests/NonEmptyVectorSuite.scala
index 3590f7bf58..79a2d3c0f7 100644
--- a/tests/src/test/scala/cats/tests/NonEmptyVectorSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/NonEmptyVectorSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{
diff --git a/tests/src/test/scala/cats/tests/OneAndSuite.scala b/tests/shared/src/test/scala/cats/tests/OneAndSuite.scala
similarity index 72%
rename from tests/src/test/scala/cats/tests/OneAndSuite.scala
rename to tests/shared/src/test/scala/cats/tests/OneAndSuite.scala
index 4b0431819b..7aed3a1754 100644
--- a/tests/src/test/scala/cats/tests/OneAndSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/OneAndSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Alternative, Applicative, Foldable, Functor, Monad, SemigroupK, Traverse}
diff --git a/tests/src/test/scala/cats/tests/OpSuite.scala b/tests/shared/src/test/scala/cats/tests/OpSuite.scala
similarity index 54%
rename from tests/src/test/scala/cats/tests/OpSuite.scala
rename to tests/shared/src/test/scala/cats/tests/OpSuite.scala
index ea3937f748..aa273e7b7b 100644
--- a/tests/src/test/scala/cats/tests/OpSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/OpSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.arrow._
diff --git a/tests/src/test/scala/cats/tests/OptionSuite.scala b/tests/shared/src/test/scala/cats/tests/OptionSuite.scala
similarity index 78%
rename from tests/src/test/scala/cats/tests/OptionSuite.scala
rename to tests/shared/src/test/scala/cats/tests/OptionSuite.scala
index aa247585df..4fca282522 100644
--- a/tests/src/test/scala/cats/tests/OptionSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/OptionSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.laws.discipline._
diff --git a/tests/src/test/scala/cats/tests/OptionTSuite.scala b/tests/shared/src/test/scala/cats/tests/OptionTSuite.scala
similarity index 94%
rename from tests/src/test/scala/cats/tests/OptionTSuite.scala
rename to tests/shared/src/test/scala/cats/tests/OptionTSuite.scala
index 2d46259a24..ce13b05975 100644
--- a/tests/src/test/scala/cats/tests/OptionTSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/OptionTSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/shared/src/test/scala/cats/tests/OptionWrapper.scala b/tests/shared/src/test/scala/cats/tests/OptionWrapper.scala
new file mode 100644
index 0000000000..5114dacc1b
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/OptionWrapper.scala
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.Functor
+import cats.laws.discipline.ExhaustiveCheck
+import org.scalacheck.{Arbitrary, Cogen}
+import org.scalacheck.Arbitrary.arbitrary
+
+/**
+ * Similar to [[ListWrapper]], but using `Option` instead of `List` limits the size of the structure, which can be
+ * useful for limiting the space of test values to generate.
+ */
+final case class OptionWrapper[A](option: Option[A]) extends AnyVal
+
+object OptionWrapper {
+  val functor: Functor[OptionWrapper] = new Functor[OptionWrapper] {
+    def map[A, B](fa: OptionWrapper[A])(f: A => B) = OptionWrapper(fa.option.map(f))
+  }
+
+  implicit def optionWrapperArbitrary[A: Arbitrary]: Arbitrary[OptionWrapper[A]] =
+    Arbitrary(arbitrary[Option[A]].map(OptionWrapper.apply))
+
+  implicit def optionWrapperCogen[A: Cogen]: Cogen[OptionWrapper[A]] =
+    Cogen[Option[A]].contramap(_.option)
+
+  implicit def catsLawsExhaustiveCheckForOptionWrapper[A](implicit
+    A: ExhaustiveCheck[A]
+  ): ExhaustiveCheck[OptionWrapper[A]] =
+    ExhaustiveCheck.instance(ExhaustiveCheck[Option[A]].allValues.map(OptionWrapper(_)))
+}
diff --git a/tests/src/test/scala/cats/tests/OrderSuite.scala b/tests/shared/src/test/scala/cats/tests/OrderSuite.scala
similarity index 66%
rename from tests/src/test/scala/cats/tests/OrderSuite.scala
rename to tests/shared/src/test/scala/cats/tests/OrderSuite.scala
index 114f3e3312..4b3ed3711e 100644
--- a/tests/src/test/scala/cats/tests/OrderSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/OrderSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Contravariant, ContravariantMonoidal, Invariant}
diff --git a/tests/shared/src/test/scala/cats/tests/OrderingSuite.scala b/tests/shared/src/test/scala/cats/tests/OrderingSuite.scala
new file mode 100644
index 0000000000..1eb478c4ac
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/OrderingSuite.scala
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.{Contravariant, ContravariantMonoidal, ContravariantSemigroupal, Invariant, Semigroupal}
+import cats.laws.discipline.arbitrary._
+import cats.laws.discipline._
+import cats.laws.discipline.eq._
+
+class OrderingSuite extends CatsSuite {
+
+  Invariant[Ordering]
+  Contravariant[Ordering]
+  Semigroupal[Ordering]
+  ContravariantSemigroupal[Ordering]
+  ContravariantMonoidal[Ordering]
+
+  checkAll("Contravariant[Ordering]", ContravariantTests[Ordering].contravariant[MiniInt, Int, Boolean])
+  checkAll("Semigroupal[Ordering]", SemigroupalTests[Ordering].semigroupal[MiniInt, Boolean, Boolean])
+  checkAll("ContravariantMonoidal[Ordering]",
+           ContravariantMonoidalTests[Ordering].contravariantMonoidal[MiniInt, Boolean, Boolean]
+  )
+  checkAll("ContravariantMonoidal[Ordering]", SerializableTests.serializable(ContravariantMonoidal[Ordering]))
+}
diff --git a/tests/src/test/scala/cats/tests/ParallelSuite.scala b/tests/shared/src/test/scala/cats/tests/ParallelSuite.scala
similarity index 95%
rename from tests/src/test/scala/cats/tests/ParallelSuite.scala
rename to tests/shared/src/test/scala/cats/tests/ParallelSuite.scala
index 49b6b9c516..df506b0053 100644
--- a/tests/src/test/scala/cats/tests/ParallelSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/ParallelSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/shared/src/test/scala/cats/tests/PartialFunctionSuite.scala b/tests/shared/src/test/scala/cats/tests/PartialFunctionSuite.scala
new file mode 100644
index 0000000000..f364507802
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/PartialFunctionSuite.scala
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+import cats.arrow.{ArrowChoice, CommutativeArrow}
+import cats.kernel.laws.discipline.SerializableTests
+import cats.laws.discipline.arbitrary._
+import cats.laws.discipline.eq._
+import cats.laws.discipline.{ArrowChoiceTests, CommutativeArrowTests, MiniInt}
+
+class PartialFunctionSuite extends CatsSuite {
+
+  checkAll("ArrowChoice[PartialFunction]", SerializableTests.serializable(ArrowChoice[PartialFunction]))
+
+  checkAll("PartialFunction",
+           ArrowChoiceTests[PartialFunction].arrowChoice[MiniInt, MiniInt, MiniInt, MiniInt, MiniInt, MiniInt]
+  )
+
+  checkAll("CommutativeArrow[PartialFunction]", SerializableTests.serializable(CommutativeArrow[PartialFunction]))
+  checkAll(
+    "PartialFunction",
+    CommutativeArrowTests[PartialFunction].commutativeArrow[MiniInt, MiniInt, MiniInt, MiniInt, MiniInt, MiniInt]
+  )
+
+}
diff --git a/tests/src/test/scala/cats/tests/PartialOrderSuite.scala b/tests/shared/src/test/scala/cats/tests/PartialOrderSuite.scala
similarity index 69%
rename from tests/src/test/scala/cats/tests/PartialOrderSuite.scala
rename to tests/shared/src/test/scala/cats/tests/PartialOrderSuite.scala
index d7e4114ce5..27f0a2af3f 100644
--- a/tests/src/test/scala/cats/tests/PartialOrderSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/PartialOrderSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Contravariant, ContravariantMonoidal, Invariant}
diff --git a/tests/shared/src/test/scala/cats/tests/PartialOrderingSuite.scala b/tests/shared/src/test/scala/cats/tests/PartialOrderingSuite.scala
new file mode 100644
index 0000000000..03beb98e7a
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/PartialOrderingSuite.scala
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.{Contravariant, ContravariantMonoidal, ContravariantSemigroupal, Invariant, Semigroupal}
+import cats.laws.discipline.arbitrary._
+import cats.laws.discipline._
+import cats.laws.discipline.eq._
+
+class PartialOrderingSuite extends CatsSuite {
+
+  Invariant[PartialOrdering]
+  Contravariant[PartialOrdering]
+  Semigroupal[PartialOrdering]
+  ContravariantSemigroupal[PartialOrdering]
+
+  checkAll("Contravariant[PartialOrdering]", ContravariantTests[PartialOrdering].contravariant[MiniInt, Int, Boolean])
+  checkAll("Semigroupal[PartialOrdering]", SemigroupalTests[PartialOrdering].semigroupal[MiniInt, Boolean, Boolean])
+  checkAll("Contravariant[PartialOrdering]", SerializableTests.serializable(Contravariant[PartialOrdering]))
+
+  checkAll("PartialOrdering[Int]",
+           ContravariantMonoidalTests[PartialOrdering].contravariantMonoidal[MiniInt, Boolean, Boolean]
+  )
+  checkAll("ContravariantMonoidal[PartialOrdering]",
+           SerializableTests.serializable(ContravariantMonoidal[PartialOrdering])
+  )
+}
diff --git a/tests/src/test/scala/cats/tests/QueueSuite.scala b/tests/shared/src/test/scala/cats/tests/QueueSuite.scala
similarity index 63%
rename from tests/src/test/scala/cats/tests/QueueSuite.scala
rename to tests/shared/src/test/scala/cats/tests/QueueSuite.scala
index 8e1f82ef0a..670eac7a98 100644
--- a/tests/src/test/scala/cats/tests/QueueSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/QueueSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Alternative, CoflatMap, Monad, Semigroupal, Traverse, TraverseFilter}
diff --git a/tests/src/test/scala/cats/tests/ReducibleSuite.scala b/tests/shared/src/test/scala/cats/tests/ReducibleSuite.scala
similarity index 87%
rename from tests/src/test/scala/cats/tests/ReducibleSuite.scala
rename to tests/shared/src/test/scala/cats/tests/ReducibleSuite.scala
index 97d6371639..95ad05037a 100644
--- a/tests/src/test/scala/cats/tests/ReducibleSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/ReducibleSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/RegressionSuite.scala b/tests/shared/src/test/scala/cats/tests/RegressionSuite.scala
similarity index 84%
rename from tests/src/test/scala/cats/tests/RegressionSuite.scala
rename to tests/shared/src/test/scala/cats/tests/RegressionSuite.scala
index 198b1aed82..b326f39c3b 100644
--- a/tests/src/test/scala/cats/tests/RegressionSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/RegressionSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/RepresentableStoreSuite.scala b/tests/shared/src/test/scala/cats/tests/RepresentableStoreSuite.scala
similarity index 70%
rename from tests/src/test/scala/cats/tests/RepresentableStoreSuite.scala
rename to tests/shared/src/test/scala/cats/tests/RepresentableStoreSuite.scala
index d784e81452..b204a439b8 100644
--- a/tests/src/test/scala/cats/tests/RepresentableStoreSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/RepresentableStoreSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.Comonad
diff --git a/tests/src/test/scala/cats/tests/RepresentableStoreTSuite.scala b/tests/shared/src/test/scala/cats/tests/RepresentableStoreTSuite.scala
similarity index 67%
rename from tests/src/test/scala/cats/tests/RepresentableStoreTSuite.scala
rename to tests/shared/src/test/scala/cats/tests/RepresentableStoreTSuite.scala
index 623054e7d5..4a40bff74a 100644
--- a/tests/src/test/scala/cats/tests/RepresentableStoreTSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/RepresentableStoreTSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/RepresentableSuite.scala b/tests/shared/src/test/scala/cats/tests/RepresentableSuite.scala
similarity index 79%
rename from tests/src/test/scala/cats/tests/RepresentableSuite.scala
rename to tests/shared/src/test/scala/cats/tests/RepresentableSuite.scala
index 2842ae7e63..13c1792aaa 100644
--- a/tests/src/test/scala/cats/tests/RepresentableSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/RepresentableSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/shared/src/test/scala/cats/tests/SemigroupKSuite.scala b/tests/shared/src/test/scala/cats/tests/SemigroupKSuite.scala
new file mode 100644
index 0000000000..3c38cb27cb
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/SemigroupKSuite.scala
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.{Align, Alternative, SemigroupK}
+import cats.data.{Chain, Validated}
+import cats.laws.discipline.AlignTests
+import cats.laws.discipline.arbitrary._
+
+class SemigroupKSuite extends CatsSuite {
+  implicit val listwrapperSemigroupK: Alternative[ListWrapper] = ListWrapper.alternative
+  implicit val listwrapperAlign: Align[ListWrapper] = SemigroupK.align[ListWrapper]
+  checkAll("SemigroupK[ListWrapper].align", AlignTests[ListWrapper].align[Int, Int, Int, Int])
+
+  implicit val validatedAlign: Align[Validated[String, *]] = SemigroupK.align[Validated[String, *]]
+  checkAll("SemigroupK[Validated].align", AlignTests[Validated[String, *]].align[Int, Int, Int, Int])
+
+  implicit val chainAlign: Align[Chain] = SemigroupK.align[Chain]
+  checkAll("SemigroupK[Chain].align", AlignTests[Chain].align[Int, Int, Int, Int])
+}
diff --git a/tests/shared/src/test/scala/cats/tests/SemigroupSuite.scala b/tests/shared/src/test/scala/cats/tests/SemigroupSuite.scala
new file mode 100644
index 0000000000..18b29eb5b0
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/SemigroupSuite.scala
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.{Invariant, InvariantMonoidal, Semigroupal}
+import cats.kernel.Semigroup
+import cats.syntax.eq._
+import cats.kernel.laws.discipline.SemigroupTests
+import org.scalacheck.Prop._
+
+class SemigroupSuite extends CatsSuite {
+
+  {
+    Invariant[Semigroup]
+    Semigroupal[Semigroup]
+    InvariantMonoidal[Semigroup]
+  }
+
+  property("Semigroup.instance creates a Semigroup from the given function") {
+    val mult: (Int, Int) => Int = (a, b) => a * b
+    val add: (Int, Int) => Int = (a, b) => a + b
+
+    forAll { (a: Int, b: Int) =>
+      assert(Semigroup.instance(mult).combine(a, b) === (a * b))
+      assert(Semigroup.instance(add).combine(a, b) === (a + b))
+    }
+  }
+
+  {
+    val S = Semigroup.first[Int]
+    checkAll("Semigroup.first", SemigroupTests[Int](S).semigroup)
+  }
+
+  {
+    val S = Semigroup.last[Int]
+    checkAll("Semigroup.last", SemigroupTests[Int](S).semigroup)
+  }
+}
diff --git a/tests/src/test/scala/cats/tests/SeqSuite.scala b/tests/shared/src/test/scala/cats/tests/SeqSuite.scala
similarity index 70%
rename from tests/src/test/scala/cats/tests/SeqSuite.scala
rename to tests/shared/src/test/scala/cats/tests/SeqSuite.scala
index 19374872d1..1312ea059b 100644
--- a/tests/src/test/scala/cats/tests/SeqSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/SeqSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, Alternative, CoflatMap, Monad, Semigroupal, Traverse, TraverseFilter}
diff --git a/tests/src/test/scala/cats/tests/SetSuite.scala b/tests/shared/src/test/scala/cats/tests/SetSuite.scala
similarity index 54%
rename from tests/src/test/scala/cats/tests/SetSuite.scala
rename to tests/shared/src/test/scala/cats/tests/SetSuite.scala
index ec4aba1264..6e72d6a6e3 100644
--- a/tests/src/test/scala/cats/tests/SetSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/SetSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{MonoidK, Show, UnorderedTraverse}
diff --git a/tests/src/test/scala/cats/tests/ShowSuite.scala b/tests/shared/src/test/scala/cats/tests/ShowSuite.scala
similarity index 72%
rename from tests/src/test/scala/cats/tests/ShowSuite.scala
rename to tests/shared/src/test/scala/cats/tests/ShowSuite.scala
index a501a1a8ad..32fb445b10 100644
--- a/tests/src/test/scala/cats/tests/ShowSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/ShowSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Contravariant, Show}
diff --git a/tests/src/test/scala/cats/tests/SortedMapSuite.scala b/tests/shared/src/test/scala/cats/tests/SortedMapSuite.scala
similarity index 75%
rename from tests/src/test/scala/cats/tests/SortedMapSuite.scala
rename to tests/shared/src/test/scala/cats/tests/SortedMapSuite.scala
index 7c1a6f1626..39e3e0ebb4 100644
--- a/tests/src/test/scala/cats/tests/SortedMapSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/SortedMapSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, FlatMap, MonoidK, Semigroupal, Show, Traverse, TraverseFilter}
diff --git a/tests/src/test/scala/cats/tests/SortedSetSuite.scala b/tests/shared/src/test/scala/cats/tests/SortedSetSuite.scala
similarity index 77%
rename from tests/src/test/scala/cats/tests/SortedSetSuite.scala
rename to tests/shared/src/test/scala/cats/tests/SortedSetSuite.scala
index 9d26fa923f..a98d3616c1 100644
--- a/tests/src/test/scala/cats/tests/SortedSetSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/SortedSetSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{SemigroupK, Semigroupal, Show}
diff --git a/tests/shared/src/test/scala/cats/tests/SplitSuite.scala b/tests/shared/src/test/scala/cats/tests/SplitSuite.scala
new file mode 100644
index 0000000000..3be38e0e51
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/SplitSuite.scala
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.syntax.arrow._
+
+class SplitSuite extends CatsSuite {
+  test("syntax") {
+    val f = ((_: Int) + 1).split((_: Int) / 2)
+    assertEquals(f((1, 2)), (2, 1))
+  }
+}
diff --git a/tests/shared/src/test/scala/cats/tests/Spooky.scala b/tests/shared/src/test/scala/cats/tests/Spooky.scala
new file mode 100644
index 0000000000..1c9ed6ace9
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/Spooky.scala
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+/**
+ * Class for spooky side-effects and action-at-a-distance.
+ *
+ * It is basically a mutable counter that can be used to measure how
+ * many times an otherwise pure function is being evaluated.
+ */
+class Spooky(var counter: Int = 0) {
+  def increment(): Unit = counter += 1
+}
diff --git a/tests/src/test/scala/cats/tests/StreamSuite.scala b/tests/shared/src/test/scala/cats/tests/StreamSuite.scala
similarity index 70%
rename from tests/src/test/scala/cats/tests/StreamSuite.scala
rename to tests/shared/src/test/scala/cats/tests/StreamSuite.scala
index 53633acecc..9ddb4557f9 100644
--- a/tests/src/test/scala/cats/tests/StreamSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/StreamSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/shared/src/test/scala/cats/tests/SyntaxSerializationSuite.scala b/tests/shared/src/test/scala/cats/tests/SyntaxSerializationSuite.scala
new file mode 100644
index 0000000000..fdf9c1afe6
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/SyntaxSerializationSuite.scala
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.laws.discipline.SerializableTests
+import cats.syntax.either._
+
+/**
+ * Test that our syntax implicits are serializable.
+ */
+class SyntaxSerializationSuite extends CatsSuite {
+  checkAll(
+    "Tuple3SemigroupalOps[Option, Boolean, Int, Long]",
+    SerializableTests.serializable(
+      cats.syntax.all.catsSyntaxTuple3Semigroupal[Option, Boolean, Int, Long]((None, None, None))
+    )
+  )
+
+  checkAll("SemigroupalOps[Option, Int]",
+           SerializableTests.serializable(cats.syntax.all.catsSyntaxSemigroupal[Option, Int](None))
+  )
+
+  checkAll(
+    "Tuple3ParallelOps[Either[String, *], Boolean, Int, Long]",
+    SerializableTests.serializable(
+      cats.syntax.all.catsSyntaxTuple3Parallel(("a".asLeft[Boolean], "b".asLeft[Int], "c".asLeft[Long]))
+    )
+  )
+}
diff --git a/tests/src/test/scala/cats/tests/SyntaxSuite.scala b/tests/shared/src/test/scala/cats/tests/SyntaxSuite.scala
similarity index 92%
rename from tests/src/test/scala/cats/tests/SyntaxSuite.scala
rename to tests/shared/src/test/scala/cats/tests/SyntaxSuite.scala
index 5d36474f78..66c2fb9738 100644
--- a/tests/src/test/scala/cats/tests/SyntaxSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/SyntaxSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/shared/src/test/scala/cats/tests/TailRecSuite.scala b/tests/shared/src/test/scala/cats/tests/TailRecSuite.scala
new file mode 100644
index 0000000000..e460ae4ad0
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/TailRecSuite.scala
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.{Defer, Monad}
+import cats.kernel.Eq
+import cats.laws.discipline.{DeferTests, MonadTests, SerializableTests}
+import scala.util.control.TailCalls.{done, tailcall, TailRec}
+import org.scalacheck.{Arbitrary, Cogen, Gen}
+import org.scalacheck.Arbitrary.arbitrary
+
+class TailRecSuite extends CatsSuite {
+
+  implicit def tailRecArb[A: Arbitrary: Cogen]: Arbitrary[TailRec[A]] =
+    Arbitrary(
+      Gen.frequency(
+        (3, arbitrary[A].map(done(_))),
+        (1, Gen.lzy(arbitrary[(A, A => TailRec[A])].map { case (a, fn) => tailcall(fn(a)) })),
+        (1, Gen.lzy(arbitrary[(TailRec[A], A => TailRec[A])].map { case (a, fn) => a.flatMap(fn) }))
+      )
+    )
+
+  implicit def eqTailRec[A: Eq]: Eq[TailRec[A]] =
+    Eq.by[TailRec[A], A](_.result)
+
+  checkAll("TailRec[Int]", MonadTests[TailRec].monad[Int, Int, Int])
+  checkAll("Monad[TailRec]", SerializableTests.serializable(Monad[TailRec]))
+
+  checkAll("TailRec[Int]", DeferTests[TailRec].defer[Int])
+  checkAll("Defer[TailRec]", SerializableTests.serializable(Defer[TailRec]))
+}
diff --git a/tests/src/test/scala/cats/tests/TraverseFilterSuite.scala b/tests/shared/src/test/scala/cats/tests/TraverseFilterSuite.scala
similarity index 52%
rename from tests/src/test/scala/cats/tests/TraverseFilterSuite.scala
rename to tests/shared/src/test/scala/cats/tests/TraverseFilterSuite.scala
index 3b64b74253..92d8131d6d 100644
--- a/tests/src/test/scala/cats/tests/TraverseFilterSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/TraverseFilterSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.Traverse
diff --git a/tests/src/test/scala/cats/tests/TraverseSuite.scala b/tests/shared/src/test/scala/cats/tests/TraverseSuite.scala
similarity index 75%
rename from tests/src/test/scala/cats/tests/TraverseSuite.scala
rename to tests/shared/src/test/scala/cats/tests/TraverseSuite.scala
index 45418daebd..5cc9d5dc68 100644
--- a/tests/src/test/scala/cats/tests/TraverseSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/TraverseSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/TrySuite.scala b/tests/shared/src/test/scala/cats/tests/TrySuite.scala
similarity index 80%
rename from tests/src/test/scala/cats/tests/TrySuite.scala
rename to tests/shared/src/test/scala/cats/tests/TrySuite.scala
index a23b251bc3..8208cfad11 100644
--- a/tests/src/test/scala/cats/tests/TrySuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/TrySuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{CoflatMap, Eval, Later, Monad, MonadThrow, Semigroupal, Traverse}
diff --git a/tests/src/test/scala/cats/tests/Tuple2KSuite.scala b/tests/shared/src/test/scala/cats/tests/Tuple2KSuite.scala
similarity index 89%
rename from tests/src/test/scala/cats/tests/Tuple2KSuite.scala
rename to tests/shared/src/test/scala/cats/tests/Tuple2KSuite.scala
index 0ba855bf31..ac4f93a032 100644
--- a/tests/src/test/scala/cats/tests/Tuple2KSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/Tuple2KSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala/cats/tests/TupleSuite.scala b/tests/shared/src/test/scala/cats/tests/TupleSuite.scala
similarity index 90%
rename from tests/src/test/scala/cats/tests/TupleSuite.scala
rename to tests/shared/src/test/scala/cats/tests/TupleSuite.scala
index 38c27e023a..37b2981904 100644
--- a/tests/src/test/scala/cats/tests/TupleSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/TupleSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{
diff --git a/tests/src/test/scala/cats/tests/UnorderedFoldableSuite.scala b/tests/shared/src/test/scala/cats/tests/UnorderedFoldableSuite.scala
similarity index 72%
rename from tests/src/test/scala/cats/tests/UnorderedFoldableSuite.scala
rename to tests/shared/src/test/scala/cats/tests/UnorderedFoldableSuite.scala
index 86842f4770..817a7ab445 100644
--- a/tests/src/test/scala/cats/tests/UnorderedFoldableSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/UnorderedFoldableSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.UnorderedFoldable
diff --git a/tests/shared/src/test/scala/cats/tests/UnorderedTraverseSuite.scala b/tests/shared/src/test/scala/cats/tests/UnorderedTraverseSuite.scala
new file mode 100644
index 0000000000..301d3b52ae
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/UnorderedTraverseSuite.scala
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.Id
+import cats.syntax.unorderedTraverse._
+import cats.syntax.eq._
+import org.scalacheck.Prop._
+
+class UnorderedTraverseSuite extends CatsSuite {
+  test("UnorderedTraverse[Set[Int]].unorderedTraverse via syntax") {
+    forAll { (ins: Set[Int]) =>
+      assert(ins.unorderedTraverse(in => in: Id[Int]).toList.sorted === (ins.toList.sorted))
+    }
+  }
+}
diff --git a/tests/src/test/scala/cats/tests/ValidatedSuite.scala b/tests/shared/src/test/scala/cats/tests/ValidatedSuite.scala
similarity index 91%
rename from tests/src/test/scala/cats/tests/ValidatedSuite.scala
rename to tests/shared/src/test/scala/cats/tests/ValidatedSuite.scala
index 281afc9c0a..4283b38c0c 100644
--- a/tests/src/test/scala/cats/tests/ValidatedSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/ValidatedSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{
diff --git a/tests/src/test/scala/cats/tests/VarianceSuite.scala b/tests/shared/src/test/scala/cats/tests/VarianceSuite.scala
similarity index 70%
rename from tests/src/test/scala/cats/tests/VarianceSuite.scala
rename to tests/shared/src/test/scala/cats/tests/VarianceSuite.scala
index 690dc1d6e7..07862ae803 100644
--- a/tests/src/test/scala/cats/tests/VarianceSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/VarianceSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.arrow.Profunctor
diff --git a/tests/src/test/scala/cats/tests/VectorSuite.scala b/tests/shared/src/test/scala/cats/tests/VectorSuite.scala
similarity index 77%
rename from tests/src/test/scala/cats/tests/VectorSuite.scala
rename to tests/shared/src/test/scala/cats/tests/VectorSuite.scala
index 8581022f65..f4b91e7369 100644
--- a/tests/src/test/scala/cats/tests/VectorSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/VectorSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.{Align, Alternative, CoflatMap, Monad, Semigroupal, Traverse, TraverseFilter}
diff --git a/tests/src/test/scala/cats/tests/WordCountSuite.scala b/tests/shared/src/test/scala/cats/tests/WordCountSuite.scala
similarity index 63%
rename from tests/src/test/scala/cats/tests/WordCountSuite.scala
rename to tests/shared/src/test/scala/cats/tests/WordCountSuite.scala
index a30a8400c1..049604dd54 100644
--- a/tests/src/test/scala/cats/tests/WordCountSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/WordCountSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats.data.{AppFunc, Const}
diff --git a/tests/shared/src/test/scala/cats/tests/WriterSuite.scala b/tests/shared/src/test/scala/cats/tests/WriterSuite.scala
new file mode 100644
index 0000000000..0fbb3ec426
--- /dev/null
+++ b/tests/shared/src/test/scala/cats/tests/WriterSuite.scala
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.tests
+
+import cats.data.Writer
+import cats.syntax.applicative._
+import cats.syntax.writer._
+import cats.syntax.eq._
+import org.scalacheck.Prop._
+
+class WriterSuite extends CatsSuite {
+  test("pure syntax creates a writer with an empty log") {
+    forAll { (result: String) =>
+      type Logged[A] = Writer[List[Int], A]
+      assert(result.pure[Logged] === (Writer(List.empty[Int], result)))
+    }
+  }
+
+  test("tell syntax creates a writer with a unit result") {
+    forAll { (log: List[Int]) =>
+      assert(log.tell === (Writer(log, ())))
+    }
+  }
+
+  test("writer syntax creates a writer with the specified result and log") {
+    forAll { (result: String, log: List[Int]) =>
+      assert(result.writer(log) === (Writer(log, result)))
+    }
+  }
+
+  test("catsDataCommutativeMonadForWriterT and catsDataTraverseForWriterTId instances are not ambiguous") {
+    import cats.Functor
+    Functor[Writer[Int, *]]
+  }
+}
diff --git a/tests/src/test/scala/cats/tests/WriterTSuite.scala b/tests/shared/src/test/scala/cats/tests/WriterTSuite.scala
similarity index 95%
rename from tests/src/test/scala/cats/tests/WriterTSuite.scala
rename to tests/shared/src/test/scala/cats/tests/WriterTSuite.scala
index b207586bee..535d77c747 100644
--- a/tests/src/test/scala/cats/tests/WriterTSuite.scala
+++ b/tests/shared/src/test/scala/cats/tests/WriterTSuite.scala
@@ -1,3 +1,24 @@
+/*
+ * Copyright (c) 2015 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package cats.tests
 
 import cats._
diff --git a/tests/src/test/scala-2.13+/cats/tests/FoldableLazyListSuite.scala b/tests/src/test/scala-2.13+/cats/tests/FoldableLazyListSuite.scala
deleted file mode 100644
index 9c9bf1e574..0000000000
--- a/tests/src/test/scala-2.13+/cats/tests/FoldableLazyListSuite.scala
+++ /dev/null
@@ -1,5 +0,0 @@
-package cats.tests
-
-class FoldableLazyListSuite extends FoldableSuite[LazyList]("lazyList") {
-  def iterator[T](list: LazyList[T]): Iterator[T] = list.iterator
-}
diff --git a/tests/src/test/scala/cats/tests/AlignSuite.scala b/tests/src/test/scala/cats/tests/AlignSuite.scala
deleted file mode 100644
index 167bc0e760..0000000000
--- a/tests/src/test/scala/cats/tests/AlignSuite.scala
+++ /dev/null
@@ -1,14 +0,0 @@
-package cats.tests
-
-import cats.Align
-import cats.kernel.laws.discipline.SemigroupTests
-
-class AlignSuite extends CatsSuite {
-  {
-    val optionSemigroup = Align.semigroup[Option, Int]
-    checkAll("Align[Option].semigroup", SemigroupTests[Option[Int]](optionSemigroup).semigroup)
-
-    val listSemigroup = Align.semigroup[List, String]
-    checkAll("Align[List].semigroup", SemigroupTests[List[String]](listSemigroup).semigroup)
-  }
-}
diff --git a/tests/src/test/scala/cats/tests/BifoldableSuite.scala b/tests/src/test/scala/cats/tests/BifoldableSuite.scala
deleted file mode 100644
index 18809faf77..0000000000
--- a/tests/src/test/scala/cats/tests/BifoldableSuite.scala
+++ /dev/null
@@ -1,20 +0,0 @@
-package cats.tests
-
-import cats.Bifoldable
-import cats.laws.discipline.{BifoldableTests, SerializableTests}
-import cats.syntax.either._
-import cats.syntax.eq._
-
-class BifoldableSuite extends CatsSuite {
-  type EitherEither[A, B] = Either[Either[A, B], Either[A, B]]
-  val eitherComposeEither: Bifoldable[EitherEither] =
-    Bifoldable[Either].compose[Either]
-
-  checkAll("Either compose Either", BifoldableTests(eitherComposeEither).bifoldable[Int, Int, Int])
-  checkAll("Bifoldable[Either compose Either]", SerializableTests.serializable(eitherComposeEither))
-
-  test("bifold works for 2 monoids") {
-    assert(Bifoldable[Either].bifold(Either.right[Int, String]("something")) === ((0, "something")))
-    assert(Bifoldable[Either].bifold(Either.left[Int, String](5)) === ((5, "")))
-  }
-}
diff --git a/tests/src/test/scala/cats/tests/BifunctorSuite.scala b/tests/src/test/scala/cats/tests/BifunctorSuite.scala
deleted file mode 100644
index 534e3b6e8b..0000000000
--- a/tests/src/test/scala/cats/tests/BifunctorSuite.scala
+++ /dev/null
@@ -1,27 +0,0 @@
-package cats.tests
-
-import cats.{Bifunctor, Functor}
-import cats.laws.discipline.{BifunctorTests, FunctorTests, SerializableTests}
-
-class BifunctorSuite extends CatsSuite {
-  type Tuple2Either[A, B] = (Either[A, B], Either[A, B])
-  val tuple2ComposeEither: Bifunctor[Tuple2Either] =
-    Bifunctor[Tuple2].compose[Either]
-
-  checkAll("Tuple2 compose Either",
-           BifunctorTests(tuple2ComposeEither).bifunctor[Int, Int, Int, String, String, String]
-  )
-  checkAll("Bifunctor[Tuple2 compose Either]", SerializableTests.serializable(tuple2ComposeEither))
-
-  {
-    type LeftFunctor[A] = (Either[A, Int], Either[A, Int])
-    implicit val leftFunctor: Functor[LeftFunctor] = tuple2ComposeEither.leftFunctor
-    checkAll("Bifunctor[Tuple2 compose Either].leftFunctor", FunctorTests[LeftFunctor].functor[Int, Int, Int])
-  }
-
-  {
-    type RightFunctor[A] = (Either[Int, A], Either[Int, A])
-    implicit val leftFunctor: Functor[RightFunctor] = tuple2ComposeEither.rightFunctor
-    checkAll("Bifunctor[Tuple2 compose Either].rightFunctor", FunctorTests[RightFunctor].functor[Int, Int, Int])
-  }
-}
diff --git a/tests/src/test/scala/cats/tests/BitSetSuite.scala b/tests/src/test/scala/cats/tests/BitSetSuite.scala
deleted file mode 100644
index 48caeb483b..0000000000
--- a/tests/src/test/scala/cats/tests/BitSetSuite.scala
+++ /dev/null
@@ -1,23 +0,0 @@
-package cats.tests
-
-import cats.syntax.show._
-import org.scalacheck.Arbitrary
-import org.scalacheck.Arbitrary.arbitrary
-import scala.collection.immutable.BitSet
-import cats.syntax.eq._
-import org.scalacheck.Prop._
-
-class BitSetSuite extends CatsSuite {
-  implicit val arbitraryBitSet: Arbitrary[BitSet] =
-    Arbitrary(arbitrary[List[Short]].map(ns => BitSet(ns.map(_ & 0xffff): _*)))
-
-  test("show BitSet") {
-    assert(BitSet(1, 1, 2, 3).show === "BitSet(1, 2, 3)")
-    assert(BitSet.empty.show === "BitSet()")
-
-    forAll { (fs: BitSet) =>
-      assert(fs.show === (fs.toString))
-    }
-  }
-
-}
diff --git a/tests/src/test/scala/cats/tests/BitraverseSuite.scala b/tests/src/test/scala/cats/tests/BitraverseSuite.scala
deleted file mode 100644
index bf4f35159f..0000000000
--- a/tests/src/test/scala/cats/tests/BitraverseSuite.scala
+++ /dev/null
@@ -1,15 +0,0 @@
-package cats.tests
-
-import cats.Bitraverse
-import cats.laws.discipline.{BitraverseTests, SerializableTests}
-
-class BitraverseSuite extends CatsSuite {
-  type EitherTuple2[A, B] = Either[(A, B), (A, B)]
-  val eitherComposeTuple2: Bitraverse[EitherTuple2] =
-    Bitraverse[Either].compose[Tuple2]
-
-  checkAll("Either compose Tuple2",
-           BitraverseTests(eitherComposeTuple2).bitraverse[Option, Int, Int, Int, String, String, String]
-  )
-  checkAll("Bitraverse[Either compose Tuple2]", SerializableTests.serializable(eitherComposeTuple2))
-}
diff --git a/tests/src/test/scala/cats/tests/BoundedEnumerableSuite.scala b/tests/src/test/scala/cats/tests/BoundedEnumerableSuite.scala
deleted file mode 100644
index 2f570a15d5..0000000000
--- a/tests/src/test/scala/cats/tests/BoundedEnumerableSuite.scala
+++ /dev/null
@@ -1,24 +0,0 @@
-package cats.tests
-
-import cats.kernel.BoundedEnumerable
-import cats.syntax.eq._
-
-class BoundedEnumerableSuite extends CatsSuite {
-
-  test("membersAscending") {
-    assert(BoundedEnumerable[Boolean].membersAscending.toList === (List(false, true)))
-  }
-
-  test("membersDescending") {
-    assert(BoundedEnumerable[Boolean].membersDescending.toList === (List(true, false)))
-  }
-
-  test("cycleNext") {
-    assert(BoundedEnumerable[Boolean].cycleNext(false) === true)
-  }
-
-  test("cyclePrevious") {
-    assert(BoundedEnumerable[Boolean].cyclePrevious(false) === true)
-  }
-
-}
diff --git a/tests/src/test/scala/cats/tests/CategorySuite.scala b/tests/src/test/scala/cats/tests/CategorySuite.scala
deleted file mode 100644
index bfeb001e84..0000000000
--- a/tests/src/test/scala/cats/tests/CategorySuite.scala
+++ /dev/null
@@ -1,18 +0,0 @@
-package cats.tests
-
-import cats.Endo
-import cats.arrow.Category
-import cats.kernel.laws.discipline.MonoidTests
-import cats.laws.discipline.{MiniInt, MonoidKTests, SerializableTests}
-import cats.laws.discipline.eq.catsLawsEqForFn1Exhaustive
-import cats.laws.discipline.arbitrary.{catsLawsArbitraryForMiniInt, catsLawsCogenForMiniInt}
-
-class CategorySuite extends CatsSuite {
-  val functionCategory = Category[Function1]
-
-  checkAll("Category[Function1].algebraK", MonoidKTests[Endo](functionCategory.algebraK).monoidK[MiniInt])
-  checkAll("Category[Function1].algebraK", SerializableTests.serializable(functionCategory.algebraK))
-
-  val functionAlgebra = functionCategory.algebra[MiniInt]
-  checkAll("Category[Function1].algebra[MiniInt]", MonoidTests[Endo[MiniInt]](functionAlgebra).monoid)
-}
diff --git a/tests/src/test/scala/cats/tests/ComposeSuite.scala b/tests/src/test/scala/cats/tests/ComposeSuite.scala
deleted file mode 100644
index 7be951615d..0000000000
--- a/tests/src/test/scala/cats/tests/ComposeSuite.scala
+++ /dev/null
@@ -1,24 +0,0 @@
-package cats.tests
-
-import cats.Endo
-import cats.arrow.Compose
-import cats.kernel.laws.discipline.SemigroupTests
-import cats.laws.discipline.{MiniInt, SemigroupKTests, SerializableTests}
-import cats.laws.discipline.eq.catsLawsEqForFn1Exhaustive
-import cats.laws.discipline.arbitrary._
-import cats.syntax.compose._
-
-class ComposeSuite extends CatsSuite {
-  val functionCompose = Compose[Function1]
-
-  checkAll("Compose[Function1].algebraK", SemigroupKTests[Endo](functionCompose.algebraK).semigroupK[MiniInt])
-  checkAll("Compose[Function1].algebraK", SerializableTests.serializable(functionCompose.algebraK))
-
-  val functionAlgebra = functionCompose.algebra[MiniInt]
-  checkAll("Compose[Function1].algebra[MiniInt]", SemigroupTests[Endo[MiniInt]](functionAlgebra).semigroup)
-
-  test("syntax") {
-    assertEquals((((_: Int) + 1) <<< ((_: Int) / 2))(2), 2)
-    assertEquals((((_: Int) + 1) >>> ((_: Int) / 2))(5), 3)
-  }
-}
diff --git a/tests/src/test/scala/cats/tests/DurationSuite.scala b/tests/src/test/scala/cats/tests/DurationSuite.scala
deleted file mode 100644
index a967476bdf..0000000000
--- a/tests/src/test/scala/cats/tests/DurationSuite.scala
+++ /dev/null
@@ -1,20 +0,0 @@
-package cats.tests
-
-import cats.Show
-import cats.laws.discipline.SerializableTests
-import scala.concurrent.duration.{Duration, DurationInt}
-import cats.syntax.eq._
-
-class DurationSuite extends CatsSuite {
-  checkAll("Show[Duration]", SerializableTests.serializable(Show[Duration]))
-
-  test("show works for FiniteDuration") {
-    assert(Show[Duration].show(23.minutes) === "23 minutes")
-  }
-
-  test("show works for non-finite durations") {
-    assert(Show[Duration].show(Duration.Inf) === "Duration.Inf")
-    assert(Show[Duration].show(Duration.MinusInf) === "Duration.MinusInf")
-    assert(Show[Duration].show(Duration.Undefined) === "Duration.Undefined")
-  }
-}
diff --git a/tests/src/test/scala/cats/tests/EqSuite.scala b/tests/src/test/scala/cats/tests/EqSuite.scala
deleted file mode 100644
index 589241745b..0000000000
--- a/tests/src/test/scala/cats/tests/EqSuite.scala
+++ /dev/null
@@ -1,19 +0,0 @@
-package cats.tests
-
-import cats.{Contravariant, ContravariantMonoidal, ContravariantSemigroupal, Invariant, Semigroupal}
-import cats.kernel.Eq
-import cats.kernel.laws.discipline.SerializableTests
-import cats.laws.discipline.{ContravariantMonoidalTests, MiniInt}
-import cats.laws.discipline.arbitrary._
-import cats.laws.discipline.eq._
-
-class EqSuite extends CatsSuite {
-  Invariant[Eq]
-  Contravariant[Eq]
-  Semigroupal[Eq]
-  ContravariantSemigroupal[Eq]
-
-  checkAll("Eq", ContravariantMonoidalTests[Eq].contravariantMonoidal[MiniInt, Boolean, Boolean])
-  checkAll("ContravariantMonoidal[Eq]", SerializableTests.serializable(ContravariantMonoidal[Eq]))
-
-}
diff --git a/tests/src/test/scala/cats/tests/EquivSuite.scala b/tests/src/test/scala/cats/tests/EquivSuite.scala
deleted file mode 100644
index f8757dc7b0..0000000000
--- a/tests/src/test/scala/cats/tests/EquivSuite.scala
+++ /dev/null
@@ -1,22 +0,0 @@
-package cats.tests
-
-import cats.{Contravariant, ContravariantMonoidal, ContravariantSemigroupal, Invariant, Semigroupal}
-import cats.laws.discipline.arbitrary._
-import cats.laws.discipline._
-import cats.laws.discipline.eq._
-
-class EquivSuite extends CatsSuite {
-
-  Invariant[Equiv]
-  Contravariant[Equiv]
-  Semigroupal[Equiv]
-  ContravariantSemigroupal[Equiv]
-  ContravariantMonoidal[Equiv]
-
-  checkAll("Contravariant[Equiv]", ContravariantTests[Equiv].contravariant[MiniInt, Int, Boolean])
-  checkAll("Semigroupal[Equiv]", SemigroupalTests[Equiv].semigroupal[MiniInt, Boolean, Boolean])
-  checkAll("ContravariantMonoidal[Equiv]",
-           ContravariantMonoidalTests[Equiv].contravariantMonoidal[MiniInt, Boolean, Boolean]
-  )
-  checkAll("ContravariantMonoidal[Equiv]", SerializableTests.serializable(ContravariantMonoidal[Equiv]))
-}
diff --git a/tests/src/test/scala/cats/tests/EvidenceSuite.scala b/tests/src/test/scala/cats/tests/EvidenceSuite.scala
deleted file mode 100644
index 5cd6f7fb79..0000000000
--- a/tests/src/test/scala/cats/tests/EvidenceSuite.scala
+++ /dev/null
@@ -1,19 +0,0 @@
-package cats.tests
-
-import cats.evidence._
-
-class EvidenceSuite extends CatsSuite {
-
-  test("Is / Leibniz") {
-
-    def cast1[A, B](as: List[A])(implicit ev: A Is B): List[B] =
-      ev.substitute(as)
-    cast1[Int, Int](1 :: 2 :: 3 :: Nil)
-
-    def cast2[A, B](as: List[A])(implicit ev: Leibniz[A, B]): List[B] =
-      ev.substitute(as)
-    cast2[Int, Int](1 :: 2 :: 3 :: Nil)
-
-  }
-
-}
diff --git a/tests/src/test/scala/cats/tests/FiniteDurationSuite.scala b/tests/src/test/scala/cats/tests/FiniteDurationSuite.scala
deleted file mode 100644
index 584f04263a..0000000000
--- a/tests/src/test/scala/cats/tests/FiniteDurationSuite.scala
+++ /dev/null
@@ -1,15 +0,0 @@
-package cats.tests
-
-import cats.Show
-import cats.laws.discipline.SerializableTests
-import scala.concurrent.duration.{DurationInt, FiniteDuration}
-import cats.syntax.eq._
-
-class FiniteDurationSuite extends CatsSuite {
-  checkAll("Show[FiniteDuration]", SerializableTests.serializable(Show[FiniteDuration]))
-
-  test("show works for FiniteDuration") {
-    assert(Show[FiniteDuration].show(23.minutes) === "23 minutes")
-    assert(Show[FiniteDuration].show(10.seconds) === "10 seconds")
-  }
-}
diff --git a/tests/src/test/scala/cats/tests/GroupSuite.scala b/tests/src/test/scala/cats/tests/GroupSuite.scala
deleted file mode 100644
index 782f025f01..0000000000
--- a/tests/src/test/scala/cats/tests/GroupSuite.scala
+++ /dev/null
@@ -1,27 +0,0 @@
-package cats.tests
-
-import cats.kernel.Group
-import cats.kernel.laws.discipline.GroupTests
-import cats.syntax.eq._
-
-class GroupSuite extends CatsSuite {
-  test("combine minValue") {
-    assert(Group[Int].combineN(1, Int.MinValue) === (Int.MinValue))
-  }
-
-  test("combine negative") {
-    assert(Group[Int].combineN(1, -1) === -1)
-    assert(Group[Int].combineN(1, -10) === -10)
-  }
-
-  test("companion object syntax") {
-    assert(Group[Int].inverse(1) === -1)
-    assert(Group[Int].remove(1, 2) === -1)
-  }
-
-  checkAll("Int", GroupTests[Int].group)
-// float and double are *not* associative, and ScalaCheck knows
-//  checkAll("Double", GroupLaws[Double].group)
-//  checkAll("Float", GroupLaws[Float].group)
-  checkAll("Long", GroupTests[Long].group)
-}
diff --git a/tests/src/test/scala/cats/tests/HashSuite.scala b/tests/src/test/scala/cats/tests/HashSuite.scala
deleted file mode 100644
index 8bc232d841..0000000000
--- a/tests/src/test/scala/cats/tests/HashSuite.scala
+++ /dev/null
@@ -1,17 +0,0 @@
-package cats.tests
-
-import cats.{Contravariant, Invariant}
-import cats.kernel.Hash
-import cats.syntax.hash._
-
-class HashSuite extends CatsSuite {
-
-  {
-    Invariant[Hash]
-    Contravariant[Hash]
-  }
-
-  assert(1.hash == 1.hashCode)
-  assert("ABC".hash == "ABC".hashCode)
-
-}
diff --git a/tests/src/test/scala/cats/tests/MonoidSuite.scala b/tests/src/test/scala/cats/tests/MonoidSuite.scala
deleted file mode 100644
index 0904b1883b..0000000000
--- a/tests/src/test/scala/cats/tests/MonoidSuite.scala
+++ /dev/null
@@ -1,26 +0,0 @@
-package cats.tests
-
-import cats.{Invariant, InvariantSemigroupal}
-import cats.kernel.Monoid
-import cats.syntax.eq._
-
-class MonoidSuite extends CatsSuite {
-  {
-    Invariant[Monoid]
-    InvariantSemigroupal[Monoid]
-  }
-
-  test("companion object syntax") {
-    assert(Monoid.empty[Int] === 0)
-    assert(Monoid.isEmpty(1) === false)
-    assert(Monoid.isEmpty(0) === true)
-  }
-}
-
-object MonoidSuite {
-  def summonInstance(): Unit = {
-    Invariant[Monoid]
-    ()
-  }
-
-}
diff --git a/tests/src/test/scala/cats/tests/NonEmptyAlternativeSuite.scala b/tests/src/test/scala/cats/tests/NonEmptyAlternativeSuite.scala
deleted file mode 100644
index c6603fb507..0000000000
--- a/tests/src/test/scala/cats/tests/NonEmptyAlternativeSuite.scala
+++ /dev/null
@@ -1,24 +0,0 @@
-package cats.tests
-
-import cats.NonEmptyAlternative
-import cats.laws.discipline.NonEmptyAlternativeTests
-
-class NonEmptyAlternativeSuite extends CatsSuite {
-  implicit val listWrapperNeAlternative: NonEmptyAlternative[ListWrapper] = ListWrapper.nonEmptyAlternative
-
-  checkAll("Option[Int]", NonEmptyAlternativeTests[Option].nonEmptyAlternative[Int, Int, Int])
-  checkAll("List[Int]", NonEmptyAlternativeTests[List].nonEmptyAlternative[Int, Int, Int])
-  checkAll("ListWrapper[List[Int]]", NonEmptyAlternativeTests[ListWrapper].nonEmptyAlternative[Int, Int, Int])
-  checkAll(
-    "compose ListWrapper[List[Int]]",
-    NonEmptyAlternativeTests.composed[ListWrapper, List].nonEmptyAlternative[Int, Int, Int]
-  )
-  checkAll(
-    "compose List[ListWrapper[Int]]",
-    NonEmptyAlternativeTests.composed[List, ListWrapper].nonEmptyAlternative[Int, Int, Int]
-  )
-  checkAll(
-    "compose ListWrapper[ListWrapper[Int]]",
-    NonEmptyAlternativeTests.composed[ListWrapper, ListWrapper].nonEmptyAlternative[Int, Int, Int]
-  )
-}
diff --git a/tests/src/test/scala/cats/tests/OptionWrapper.scala b/tests/src/test/scala/cats/tests/OptionWrapper.scala
deleted file mode 100644
index 2c842bdc2e..0000000000
--- a/tests/src/test/scala/cats/tests/OptionWrapper.scala
+++ /dev/null
@@ -1,29 +0,0 @@
-package cats.tests
-
-import cats.Functor
-import cats.laws.discipline.ExhaustiveCheck
-import org.scalacheck.{Arbitrary, Cogen}
-import org.scalacheck.Arbitrary.arbitrary
-
-/**
- * Similar to [[ListWrapper]], but using `Option` instead of `List` limits the size of the structure, which can be
- * useful for limiting the space of test values to generate.
- */
-final case class OptionWrapper[A](option: Option[A]) extends AnyVal
-
-object OptionWrapper {
-  val functor: Functor[OptionWrapper] = new Functor[OptionWrapper] {
-    def map[A, B](fa: OptionWrapper[A])(f: A => B) = OptionWrapper(fa.option.map(f))
-  }
-
-  implicit def optionWrapperArbitrary[A: Arbitrary]: Arbitrary[OptionWrapper[A]] =
-    Arbitrary(arbitrary[Option[A]].map(OptionWrapper.apply))
-
-  implicit def optionWrapperCogen[A: Cogen]: Cogen[OptionWrapper[A]] =
-    Cogen[Option[A]].contramap(_.option)
-
-  implicit def catsLawsExhaustiveCheckForOptionWrapper[A](implicit
-    A: ExhaustiveCheck[A]
-  ): ExhaustiveCheck[OptionWrapper[A]] =
-    ExhaustiveCheck.instance(ExhaustiveCheck[Option[A]].allValues.map(OptionWrapper(_)))
-}
diff --git a/tests/src/test/scala/cats/tests/OrderingSuite.scala b/tests/src/test/scala/cats/tests/OrderingSuite.scala
deleted file mode 100644
index dc17ae31fd..0000000000
--- a/tests/src/test/scala/cats/tests/OrderingSuite.scala
+++ /dev/null
@@ -1,22 +0,0 @@
-package cats.tests
-
-import cats.{Contravariant, ContravariantMonoidal, ContravariantSemigroupal, Invariant, Semigroupal}
-import cats.laws.discipline.arbitrary._
-import cats.laws.discipline._
-import cats.laws.discipline.eq._
-
-class OrderingSuite extends CatsSuite {
-
-  Invariant[Ordering]
-  Contravariant[Ordering]
-  Semigroupal[Ordering]
-  ContravariantSemigroupal[Ordering]
-  ContravariantMonoidal[Ordering]
-
-  checkAll("Contravariant[Ordering]", ContravariantTests[Ordering].contravariant[MiniInt, Int, Boolean])
-  checkAll("Semigroupal[Ordering]", SemigroupalTests[Ordering].semigroupal[MiniInt, Boolean, Boolean])
-  checkAll("ContravariantMonoidal[Ordering]",
-           ContravariantMonoidalTests[Ordering].contravariantMonoidal[MiniInt, Boolean, Boolean]
-  )
-  checkAll("ContravariantMonoidal[Ordering]", SerializableTests.serializable(ContravariantMonoidal[Ordering]))
-}
diff --git a/tests/src/test/scala/cats/tests/PartialFunctionSuite.scala b/tests/src/test/scala/cats/tests/PartialFunctionSuite.scala
deleted file mode 100644
index d07ac57121..0000000000
--- a/tests/src/test/scala/cats/tests/PartialFunctionSuite.scala
+++ /dev/null
@@ -1,22 +0,0 @@
-package cats.tests
-import cats.arrow.{ArrowChoice, CommutativeArrow}
-import cats.kernel.laws.discipline.SerializableTests
-import cats.laws.discipline.arbitrary._
-import cats.laws.discipline.eq._
-import cats.laws.discipline.{ArrowChoiceTests, CommutativeArrowTests, MiniInt}
-
-class PartialFunctionSuite extends CatsSuite {
-
-  checkAll("ArrowChoice[PartialFunction]", SerializableTests.serializable(ArrowChoice[PartialFunction]))
-
-  checkAll("PartialFunction",
-           ArrowChoiceTests[PartialFunction].arrowChoice[MiniInt, MiniInt, MiniInt, MiniInt, MiniInt, MiniInt]
-  )
-
-  checkAll("CommutativeArrow[PartialFunction]", SerializableTests.serializable(CommutativeArrow[PartialFunction]))
-  checkAll(
-    "PartialFunction",
-    CommutativeArrowTests[PartialFunction].commutativeArrow[MiniInt, MiniInt, MiniInt, MiniInt, MiniInt, MiniInt]
-  )
-
-}
diff --git a/tests/src/test/scala/cats/tests/PartialOrderingSuite.scala b/tests/src/test/scala/cats/tests/PartialOrderingSuite.scala
deleted file mode 100644
index 536206c21f..0000000000
--- a/tests/src/test/scala/cats/tests/PartialOrderingSuite.scala
+++ /dev/null
@@ -1,25 +0,0 @@
-package cats.tests
-
-import cats.{Contravariant, ContravariantMonoidal, ContravariantSemigroupal, Invariant, Semigroupal}
-import cats.laws.discipline.arbitrary._
-import cats.laws.discipline._
-import cats.laws.discipline.eq._
-
-class PartialOrderingSuite extends CatsSuite {
-
-  Invariant[PartialOrdering]
-  Contravariant[PartialOrdering]
-  Semigroupal[PartialOrdering]
-  ContravariantSemigroupal[PartialOrdering]
-
-  checkAll("Contravariant[PartialOrdering]", ContravariantTests[PartialOrdering].contravariant[MiniInt, Int, Boolean])
-  checkAll("Semigroupal[PartialOrdering]", SemigroupalTests[PartialOrdering].semigroupal[MiniInt, Boolean, Boolean])
-  checkAll("Contravariant[PartialOrdering]", SerializableTests.serializable(Contravariant[PartialOrdering]))
-
-  checkAll("PartialOrdering[Int]",
-           ContravariantMonoidalTests[PartialOrdering].contravariantMonoidal[MiniInt, Boolean, Boolean]
-  )
-  checkAll("ContravariantMonoidal[PartialOrdering]",
-           SerializableTests.serializable(ContravariantMonoidal[PartialOrdering])
-  )
-}
diff --git a/tests/src/test/scala/cats/tests/SemigroupKSuite.scala b/tests/src/test/scala/cats/tests/SemigroupKSuite.scala
deleted file mode 100644
index 4d366bacba..0000000000
--- a/tests/src/test/scala/cats/tests/SemigroupKSuite.scala
+++ /dev/null
@@ -1,18 +0,0 @@
-package cats.tests
-
-import cats.{Align, Alternative, SemigroupK}
-import cats.data.{Chain, Validated}
-import cats.laws.discipline.AlignTests
-import cats.laws.discipline.arbitrary._
-
-class SemigroupKSuite extends CatsSuite {
-  implicit val listwrapperSemigroupK: Alternative[ListWrapper] = ListWrapper.alternative
-  implicit val listwrapperAlign: Align[ListWrapper] = SemigroupK.align[ListWrapper]
-  checkAll("SemigroupK[ListWrapper].align", AlignTests[ListWrapper].align[Int, Int, Int, Int])
-
-  implicit val validatedAlign: Align[Validated[String, *]] = SemigroupK.align[Validated[String, *]]
-  checkAll("SemigroupK[Validated].align", AlignTests[Validated[String, *]].align[Int, Int, Int, Int])
-
-  implicit val chainAlign: Align[Chain] = SemigroupK.align[Chain]
-  checkAll("SemigroupK[Chain].align", AlignTests[Chain].align[Int, Int, Int, Int])
-}
diff --git a/tests/src/test/scala/cats/tests/SemigroupSuite.scala b/tests/src/test/scala/cats/tests/SemigroupSuite.scala
deleted file mode 100644
index a4753757f0..0000000000
--- a/tests/src/test/scala/cats/tests/SemigroupSuite.scala
+++ /dev/null
@@ -1,36 +0,0 @@
-package cats.tests
-
-import cats.{Invariant, InvariantMonoidal, Semigroupal}
-import cats.kernel.Semigroup
-import cats.syntax.eq._
-import cats.kernel.laws.discipline.SemigroupTests
-import org.scalacheck.Prop._
-
-class SemigroupSuite extends CatsSuite {
-
-  {
-    Invariant[Semigroup]
-    Semigroupal[Semigroup]
-    InvariantMonoidal[Semigroup]
-  }
-
-  property("Semigroup.instance creates a Semigroup from the given function") {
-    val mult: (Int, Int) => Int = (a, b) => a * b
-    val add: (Int, Int) => Int = (a, b) => a + b
-
-    forAll { (a: Int, b: Int) =>
-      assert(Semigroup.instance(mult).combine(a, b) === (a * b))
-      assert(Semigroup.instance(add).combine(a, b) === (a + b))
-    }
-  }
-
-  {
-    val S = Semigroup.first[Int]
-    checkAll("Semigroup.first", SemigroupTests[Int](S).semigroup)
-  }
-
-  {
-    val S = Semigroup.last[Int]
-    checkAll("Semigroup.last", SemigroupTests[Int](S).semigroup)
-  }
-}
diff --git a/tests/src/test/scala/cats/tests/SplitSuite.scala b/tests/src/test/scala/cats/tests/SplitSuite.scala
deleted file mode 100644
index bffddabda7..0000000000
--- a/tests/src/test/scala/cats/tests/SplitSuite.scala
+++ /dev/null
@@ -1,10 +0,0 @@
-package cats.tests
-
-import cats.syntax.arrow._
-
-class SplitSuite extends CatsSuite {
-  test("syntax") {
-    val f = ((_: Int) + 1).split((_: Int) / 2)
-    assertEquals(f((1, 2)), (2, 1))
-  }
-}
diff --git a/tests/src/test/scala/cats/tests/Spooky.scala b/tests/src/test/scala/cats/tests/Spooky.scala
deleted file mode 100644
index bc1ce9d003..0000000000
--- a/tests/src/test/scala/cats/tests/Spooky.scala
+++ /dev/null
@@ -1,11 +0,0 @@
-package cats.tests
-
-/**
- * Class for spooky side-effects and action-at-a-distance.
- *
- * It is basically a mutable counter that can be used to measure how
- * many times an otherwise pure function is being evaluated.
- */
-class Spooky(var counter: Int = 0) {
-  def increment(): Unit = counter += 1
-}
diff --git a/tests/src/test/scala/cats/tests/SyntaxSerializationSuite.scala b/tests/src/test/scala/cats/tests/SyntaxSerializationSuite.scala
deleted file mode 100644
index 18e71d1e89..0000000000
--- a/tests/src/test/scala/cats/tests/SyntaxSerializationSuite.scala
+++ /dev/null
@@ -1,27 +0,0 @@
-package cats.tests
-
-import cats.laws.discipline.SerializableTests
-import cats.syntax.either._
-
-/**
- * Test that our syntax implicits are serializable.
- */
-class SyntaxSerializationSuite extends CatsSuite {
-  checkAll(
-    "Tuple3SemigroupalOps[Option, Boolean, Int, Long]",
-    SerializableTests.serializable(
-      cats.syntax.all.catsSyntaxTuple3Semigroupal[Option, Boolean, Int, Long]((None, None, None))
-    )
-  )
-
-  checkAll("SemigroupalOps[Option, Int]",
-           SerializableTests.serializable(cats.syntax.all.catsSyntaxSemigroupal[Option, Int](None))
-  )
-
-  checkAll(
-    "Tuple3ParallelOps[Either[String, *], Boolean, Int, Long]",
-    SerializableTests.serializable(
-      cats.syntax.all.catsSyntaxTuple3Parallel(("a".asLeft[Boolean], "b".asLeft[Int], "c".asLeft[Long]))
-    )
-  )
-}
diff --git a/tests/src/test/scala/cats/tests/TailRecSuite.scala b/tests/src/test/scala/cats/tests/TailRecSuite.scala
deleted file mode 100644
index 65bb97eafa..0000000000
--- a/tests/src/test/scala/cats/tests/TailRecSuite.scala
+++ /dev/null
@@ -1,29 +0,0 @@
-package cats.tests
-
-import cats.{Defer, Monad}
-import cats.kernel.Eq
-import cats.laws.discipline.{DeferTests, MonadTests, SerializableTests}
-import scala.util.control.TailCalls.{done, tailcall, TailRec}
-import org.scalacheck.{Arbitrary, Cogen, Gen}
-import org.scalacheck.Arbitrary.arbitrary
-
-class TailRecSuite extends CatsSuite {
-
-  implicit def tailRecArb[A: Arbitrary: Cogen]: Arbitrary[TailRec[A]] =
-    Arbitrary(
-      Gen.frequency(
-        (3, arbitrary[A].map(done(_))),
-        (1, Gen.lzy(arbitrary[(A, A => TailRec[A])].map { case (a, fn) => tailcall(fn(a)) })),
-        (1, Gen.lzy(arbitrary[(TailRec[A], A => TailRec[A])].map { case (a, fn) => a.flatMap(fn) }))
-      )
-    )
-
-  implicit def eqTailRec[A: Eq]: Eq[TailRec[A]] =
-    Eq.by[TailRec[A], A](_.result)
-
-  checkAll("TailRec[Int]", MonadTests[TailRec].monad[Int, Int, Int])
-  checkAll("Monad[TailRec]", SerializableTests.serializable(Monad[TailRec]))
-
-  checkAll("TailRec[Int]", DeferTests[TailRec].defer[Int])
-  checkAll("Defer[TailRec]", SerializableTests.serializable(Defer[TailRec]))
-}
diff --git a/tests/src/test/scala/cats/tests/UnorderedTraverseSuite.scala b/tests/src/test/scala/cats/tests/UnorderedTraverseSuite.scala
deleted file mode 100644
index 8d8e63477d..0000000000
--- a/tests/src/test/scala/cats/tests/UnorderedTraverseSuite.scala
+++ /dev/null
@@ -1,14 +0,0 @@
-package cats.tests
-
-import cats.Id
-import cats.syntax.unorderedTraverse._
-import cats.syntax.eq._
-import org.scalacheck.Prop._
-
-class UnorderedTraverseSuite extends CatsSuite {
-  test("UnorderedTraverse[Set[Int]].unorderedTraverse via syntax") {
-    forAll { (ins: Set[Int]) =>
-      assert(ins.unorderedTraverse(in => in: Id[Int]).toList.sorted === (ins.toList.sorted))
-    }
-  }
-}
diff --git a/tests/src/test/scala/cats/tests/WriterSuite.scala b/tests/src/test/scala/cats/tests/WriterSuite.scala
deleted file mode 100644
index 0638b49281..0000000000
--- a/tests/src/test/scala/cats/tests/WriterSuite.scala
+++ /dev/null
@@ -1,33 +0,0 @@
-package cats.tests
-
-import cats.data.Writer
-import cats.syntax.applicative._
-import cats.syntax.writer._
-import cats.syntax.eq._
-import org.scalacheck.Prop._
-
-class WriterSuite extends CatsSuite {
-  test("pure syntax creates a writer with an empty log") {
-    forAll { (result: String) =>
-      type Logged[A] = Writer[List[Int], A]
-      assert(result.pure[Logged] === (Writer(List.empty[Int], result)))
-    }
-  }
-
-  test("tell syntax creates a writer with a unit result") {
-    forAll { (log: List[Int]) =>
-      assert(log.tell === (Writer(log, ())))
-    }
-  }
-
-  test("writer syntax creates a writer with the specified result and log") {
-    forAll { (result: String, log: List[Int]) =>
-      assert(result.writer(log) === (Writer(log, result)))
-    }
-  }
-
-  test("catsDataCommutativeMonadForWriterT and catsDataTraverseForWriterTId instances are not ambiguous") {
-    import cats.Functor
-    Functor[Writer[Int, *]]
-  }
-}
diff --git a/version.sbt b/version.sbt
deleted file mode 100644
index 55cf108b37..0000000000
--- a/version.sbt
+++ /dev/null
@@ -1 +0,0 @@
-ThisBuild / version := "2.8.0-SNAPSHOT"