diff --git a/.github/labeler.yml b/.github/labeler.yml
new file mode 100644
index 000000000..5405156e5
--- /dev/null
+++ b/.github/labeler.yml
@@ -0,0 +1,97 @@
+
+Documentation:
+- changed-files:
+  - any-glob-to-any-file: docs/**
+
+Examples:
+- changed-files:
+  - any-glob-to-any-file: examples/**
+
+Tests:
+- changed-files:
+  - any-glob-to-any-file: test/**
+
+CI:
+- changed-files:
+  - any-glob-to-any-file: .github/workflows/**
+  - any-glob-to-any-file: .circleci/**
+
+ot.bregman:
+- changed-files:
+  - any-glob-to-any-file: ot/bergman/**
+
+ot.gromov:
+- changed-files:
+  - any-glob-to-any-file: ot/gromov/**
+
+ot.unbalanced:
+- changed-files:
+  - any-glob-to-any-file: ot/unbalanced/**
+
+ot.lp:
+- changed-files:
+  - any-glob-to-any-file: ot/lp/**
+
+ot.utils:
+- changed-files:
+  - any-glob-to-any-file: ot/utils.py
+
+ot.backend:
+- changed-files:
+  - any-glob-to-any-file: ot/backend.py
+
+ot.coot:
+- changed-files:
+  - any-glob-to-any-file: ot/coot.py
+
+ot.optim:
+- changed-files:
+  - any-glob-to-any-file: ot/optim.py
+
+ot.plot:
+- changed-files:
+  - any-glob-to-any-file: ot/plot.py
+
+ot.factored:
+- changed-files:
+  - any-glob-to-any-file: ot/factored.py
+
+ot.gaussian:
+- changed-files:
+  - any-glob-to-any-file: ot/gaussian.py
+
+ot.gmm:
+- changed-files:
+  - any-glob-to-any-file: ot/gmm.py
+
+ot.lowrank:
+- changed-files:
+  - any-glob-to-any-file: ot/lowrank.py
+
+ot.solvers:
+- changed-files:
+  - any-glob-to-any-file: ot/solvers.py
+
+ot.partial:
+- changed-files:
+  - any-glob-to-any-file: ot/partial.py
+
+ot.sliced:
+- changed-files:
+  - any-glob-to-any-file: ot/sliced.py
+
+ot.smooth:
+- changed-files:
+  - any-glob-to-any-file: ot/smooth.py
+
+ot.weak:
+- changed-files:
+  - any-glob-to-any-file: ot/weak.py
+
+ot.dr:
+- changed-files:
+  - any-glob-to-any-file: ot/dr.py
+
+ot.gnn:
+- changed-files:
+  - any-glob-to-any-file: ot/gnn/**
\ No newline at end of file
diff --git a/.github/workflows/build_tests.yml b/.github/workflows/build_tests.yml
index c06994a1a..4356daa2b 100644
--- a/.github/workflows/build_tests.yml
+++ b/.github/workflows/build_tests.yml
@@ -39,6 +39,7 @@ jobs:
         pre-commit install --install-hooks
         pre-commit run --all-files
 
+
   linux:
 
     runs-on: ubuntu-latest
diff --git a/.github/workflows/build_tests_cuda.yml b/.github/workflows/build_tests_cuda.yml
deleted file mode 100644
index 2d4e452c5..000000000
--- a/.github/workflows/build_tests_cuda.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-name: Tests CUDA
-
-on:
-  workflow_dispatch:
-  pull_request_review:
-    types: [submitted]
-
-jobs:
-  linux-cuda:
-
-    runs-on: pc-cuda
-    if: github.event.review.state == 'approved' || github.event_name ==     'workflow_dispatch' || (github.event_name == 'push' && github.ref == 'refs/heads/master')
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Install POT
-      run: |
-        python3.10 -m pip install --upgrade pip setuptools
-        python3.10 -m pip install --ignore-installed -e .
-    - name: Run tests
-      run: |
-        python3.10 -m pytest --durations=20 -v test/ ot/ --doctest-modules --color=yes --ignore=test/test_dr.py --ignore=ot.dr --ignore=ot.plot
-
diff --git a/.github/workflows/check_release.yml b/.github/workflows/check_release.yml
new file mode 100644
index 000000000..df43d8a65
--- /dev/null
+++ b/.github/workflows/check_release.yml
@@ -0,0 +1,21 @@
+name: "Check updated RELEASES.md file"
+
+on:
+  pull_request:
+    branches:
+      - 'master'
+jobs:
+  check_release_file:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Verify Changed files
+        uses: tj-actions/changed-files@v45
+        id: changed-release-file
+        with:
+          files: 'RELEASES.md'
+      - name: Check if RELEASES.md file is changed
+        if: steps.changed-release-file.outputs.any_changed == 'false'
+        run: exit 1
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
new file mode 100644
index 000000000..285c2ded8
--- /dev/null
+++ b/.github/workflows/labeler.yml
@@ -0,0 +1,14 @@
+name: "Pull Request Labeler"
+
+on:
+  pull_request:
+    branches:
+      - 'master'
+jobs:
+  labeler:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/labeler@v5
\ No newline at end of file
diff --git a/.yamllint.yml b/.yamllint.yml
index e7c255105..e7c081ac9 100644
--- a/.yamllint.yml
+++ b/.yamllint.yml
@@ -4,6 +4,7 @@ ignore: |
   .github/workflows/*.yml
   .circleci/config.yml
   codecov.yml
+  .github/labeler.yml
 
 rules:
   line-length: disable
diff --git a/RELEASES.md b/RELEASES.md
index c2accd8bf..f3f100b66 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -5,6 +5,7 @@
 #### New features
 - Implement CG solvers for partial FGW (PR #687)
 - Added feature `grad=last_step` for `ot.solvers.solve` (PR #693)
+- Automatic PR labeling and release file update check (PR #704)
 
 #### Closed issues
 - Fixed `ot.mapping` solvers which depended on deprecated `cvxpy` `ECOS` solver (PR #692, Issue #668)
diff --git a/ot/coot.py b/ot/coot.py
index 8ea08a2f9..6f4cfa6f0 100644
--- a/ot/coot.py
+++ b/ot/coot.py
@@ -148,7 +148,7 @@ def co_optimal_transport(
             duals_feature : (n_feature_x, n_feature_y) tuple, float
                 Pair of dual vectors when solving OT problem w.r.t the feature coupling.
             distances : list, float
-                List of COOT distances.
+                List of COOT distances along iterations.
 
     References
     ----------