diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index bca7243..f5dd3d0 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -2,38 +2,114 @@ name: Test
 
 on: [push, pull_request]
 
+permissions:
+  contents: read
+
 jobs:
-    test:
-        name: PHP ${{ matrix.php-version }}
-
-        runs-on: ubuntu-22.04
-
-        strategy:
-            matrix:
-                php-version:
-                    - 7.3
-                    - 7.4
-                    - 8.0
-                    - 8.1
-                    - 8.2
-                    - 8.3
-                    
-
-        steps:
-            - name: Checkout
-              uses: actions/checkout@v2
-
-            - name: Install PHP with extensions
-              uses: shivammathur/setup-php@v2
-              with:
-                  php-version: ${{ matrix.php-version }}
-                  coverage: pcov
-                  tools: composer:v2
-
-            - name: Install Composer dependencies
-              uses: ramsey/composer-install@v1
-              with:
-                  composer-options: --prefer-dist
-
-            - name: Run Tests
-              run: vendor/bin/phpunit
+
+
+  test:
+    #name: PHP ${{ matrix.php-version }}
+    name: PHP ${{ matrix.php }} - ${{ matrix.phpunit }} -  ${{ matrix.stability }}
+    runs-on: ubuntu-20.04
+
+    strategy:
+      fail-fast: true
+      matrix:
+        php: [7.3, 7.4, 8.0, 8.1, 8.2, 8.3]
+        phpunit: ['9.6.16']
+        #        stability: [prefer-lowest, prefer-stable]
+        stability: [prefer-dist]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup PHP
+        # https://github.com/shivammathur/setup-php
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, :php-psr #sqlite, pdo_sqlite, gd, redis, igbinary, msgpack, lzf, zstd, lz4, memcached, gmp,
+          ini-values: error_reporting=E_ALL
+          tools: composer:v2
+          coverage: none
+          #env:
+          #REDIS_CONFIGURE_OPTS: --enable-redis --enable-redis-igbinary --enable-redis-msgpack --enable-redis-lzf --with-liblzf --enable-redis-zstd --with-libzstd --enable-redis-lz4 --with-liblz4
+          #REDIS_LIBS: liblz4-dev, liblzf-dev, libzstd-dev
+
+      #     - name: Validate composer.json and composer.lock
+      #       run: composer validate --strict
+
+      - name: Get composer cache directory
+        id: composer-cache
+        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+      - name: Cache dependencies
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          #key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          #restore-keys: ${{ runner.os }}-composer-
+          key: ${{ runner.os }}-composer-${{ matrix.prefer }}-${{ hashFiles('**/composer.lock') }}
+          restore-keys: ${{ runner.os }}-composer-${{ matrix.prefer }}-
+
+      #     - name: Install dependencies
+      #       run: composer install --prefer-dist
+
+      - name: Set PHPUnit
+        uses: nick-fields/retry@v3
+        with:
+          timeout_minutes: 5
+          max_attempts: 10
+          command: composer require phpunit/phpunit:^${{ matrix.phpunit }} --dev --no-interaction --no-update
+
+      - name: Install dependencies
+        uses: nick-fields/retry@v3
+        with:
+          timeout_minutes: 5
+          max_attempts: 10
+          command: composer update --${{ matrix.stability }} --no-interaction --no-progress
+
+      - name: Run Tests
+        run: vendor/bin/phpunit
+
+#name: Test
+#
+#on: [push, pull_request]
+#
+#jobs:
+#    test:
+#        name: PHP ${{ matrix.php-version }}
+#
+#        runs-on: ubuntu-22.04
+#
+#        strategy:
+#            matrix:
+#                php-version:
+#                    - 7.3
+#                    - 7.4
+#                    - 8.0
+#                    - 8.1
+#                    - 8.2
+#                    - 8.3
+#
+#
+#        steps:
+#            - name: Checkout
+#              uses: actions/checkout@v2
+#
+#            - name: Install PHP with extensions
+#              uses: shivammathur/setup-php@v2
+#              with:
+#                  php-version: ${{ matrix.php-version }}
+#                  coverage: pcov
+#                  tools: composer:v2
+#
+#            - name: Install Composer dependencies
+#              uses: ramsey/composer-install@v1
+#              with:
+#                  composer-options: --prefer-dist
+#
+#            - name: Run Tests
+#              run: vendor/bin/phpunit
diff --git a/composer.json b/composer.json
index ab5bc1e..d0e9e1e 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,6 @@
     "name": "kohanaworld/hmmmath",
     "description": "Collection of math related PHP functions (PHP >=7.2 <=8.3",
     "license": "MIT",
-    "version": "0.9.0",
     "authors": [
         {
             "name": "Lars Strojny",