diff --git a/.github/workflows/cygwin.yml b/.github/workflows/cygwin.yml
index 298f3ec75ea0..75d9dc54351a 100644
--- a/.github/workflows/cygwin.yml
+++ b/.github/workflows/cygwin.yml
@@ -47,7 +47,7 @@ jobs:
 
       - run: git config --global core.autocrlf input
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: cygwin/cygwin-install-action@v6
         with:
@@ -81,7 +81,7 @@ jobs:
           echo "dir=$(cygpath -wa $(python3 -m pip cache dir))" >> "$GITHUB_OUTPUT"
         shell: bash --noprofile --norc -o igncr -eo pipefail '{0}'
 
-      - uses: actions/cache/restore@v4
+      - uses: actions/cache/restore@v5
         id: restore-cache
         with:
           path: ${{ steps.pip-cache.outputs.dir }}
@@ -94,7 +94,7 @@ jobs:
           python3 -m pip --disable-pip-version-check install pytest pytest-subtests pytest-xdist
         shell: bash --noprofile --norc -o igncr -eo pipefail '{0}'
 
-      - uses: actions/cache/save@v4
+      - uses: actions/cache/save@v5
         with:
           path: ${{ steps.pip-cache.outputs.dir }}
           key: cygwin-pip-${{ github.run_number }}
@@ -109,7 +109,7 @@ jobs:
           SKIP_STATIC_BOOST: 1
         shell: bash --noprofile --norc -o igncr -eo pipefail '{0}'
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         with:
           name: ${{ matrix.NAME }}
           path: meson-test-run.*
diff --git a/.github/workflows/file_format.yml b/.github/workflows/file_format.yml
index a8d4ce21bd0e..39cd0e785e08 100644
--- a/.github/workflows/file_format.yml
+++ b/.github/workflows/file_format.yml
@@ -13,8 +13,8 @@ jobs:
   format:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-python@v5
+    - uses: actions/checkout@v6
+    - uses: actions/setup-python@v6
       with:
         python-version: '3.x'
     - run: python3 ./run_format_tests.py
diff --git a/.github/workflows/images.yml b/.github/workflows/images.yml
index 7d83920de575..466f82991bbe 100644
--- a/.github/workflows/images.yml
+++ b/.github/workflows/images.yml
@@ -50,7 +50,7 @@ jobs:
       # Login to dockerhub
       - name: Docker login
         if:   (github.event_name == 'push' || github.event_name == 'schedule') && env.HAS_DOCKER_CREDENTIALS == 'true'
-        uses: azure/docker-login@v1
+        uses: docker/login-action@v4
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 617d9a6ecdd6..a5b7add1c04d 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -28,8 +28,8 @@ jobs:
   pylint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-python@v5
+    - uses: actions/checkout@v6
+    - uses: actions/setup-python@v6
       with:
         python-version: '3.13'
     - run: python -m pip install pylint
@@ -38,8 +38,8 @@ jobs:
   flake8:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.x'
       - run: python -m pip install flake8
@@ -48,8 +48,8 @@ jobs:
   mypy:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-python@v5
+    - uses: actions/checkout@v6
+    - uses: actions/setup-python@v6
       with:
         python-version: '3.x'
     # Pin mypy to version 1.19, so we retain the ability to lint for Python 3.10
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index fe89b6529f5f..2fa177c84854 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -31,7 +31,7 @@ jobs:
   unittests-appleclang:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - run: brew update
     # github actions overwrites brew's python. Force it to reassert itself, by running in a separate step.
     - name: unbreak python in github actions
@@ -78,7 +78,7 @@ jobs:
       HOMEBREW_NO_AUTO_UPDATE: 1
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     # Avoid picking up an older version of LLVM that does not work.
     - run: brew update
     # github actions overwrites brew's python. Force it to reassert itself, by running in a separate step.
diff --git a/.github/workflows/msys2.yml b/.github/workflows/msys2.yml
index 4cd3954270ab..84e423321850 100644
--- a/.github/workflows/msys2.yml
+++ b/.github/workflows/msys2.yml
@@ -61,7 +61,7 @@ jobs:
         shell: msys2 {0}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: msys2/setup-msys2@v2
         with:
@@ -127,7 +127,7 @@ jobs:
 
           MSYSTEM= python3 ./run_tests.py --backend=ninja
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         with:
           name: ${{ matrix.NAME }}
           path: meson-test-run.*
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 79332196c173..ab896460fce4 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -18,7 +18,7 @@ jobs:
   wheel:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Build wheel
diff --git a/.github/workflows/nonnative.yml b/.github/workflows/nonnative.yml
index 3c97e4a00434..38175bfd2bc1 100644
--- a/.github/workflows/nonnative.yml
+++ b/.github/workflows/nonnative.yml
@@ -36,7 +36,7 @@ jobs:
     - run: |
         apt-get -y purge clang gcc gdc
         apt-get -y autoremove
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Run tests
       run: bash -c 'source /ci/env_vars.sh; cd $GITHUB_WORKSPACE; ./run_tests.py $CI_ARGS --cross ubuntu-armhf.json --cross-only'
 
@@ -46,6 +46,6 @@ jobs:
     env:
       MESON_CI_JOBNAME: cuda-cross-${{ github.job }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Run tests
       run: bash -c 'source /ci/env_vars.sh; cd $GITHUB_WORKSPACE; ./run_tests.py $CI_ARGS --cross cuda-cross.json --cross-only'
diff --git a/.github/workflows/os_comp.yml b/.github/workflows/os_comp.yml
index 135635822c15..6003dd9382a1 100644
--- a/.github/workflows/os_comp.yml
+++ b/.github/workflows/os_comp.yml
@@ -71,7 +71,7 @@ jobs:
       MESON_CI_JOBNAME_UPDATE: linux-arch-gcc-pypy
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Run tests
       run: |
         source /ci/env_vars.sh
@@ -125,7 +125,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Run tests
         shell: bash
diff --git a/.github/workflows/stable_builddir.yml b/.github/workflows/stable_builddir.yml
index ae2951801cef..0cc815b80b03 100644
--- a/.github/workflows/stable_builddir.yml
+++ b/.github/workflows/stable_builddir.yml
@@ -14,7 +14,7 @@ jobs:
     env:
       TESTDIR: "manual tests/13 builddir upgrade"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: install ninja
         run: sudo apt-get -y install build-essential ninja-build
       - name: Fetch tags and unshallow
diff --git a/.github/workflows/unusedargs_missingreturn.yml b/.github/workflows/unusedargs_missingreturn.yml
index 4367ce556caf..8ebc4fe4fe8a 100644
--- a/.github/workflows/unusedargs_missingreturn.yml
+++ b/.github/workflows/unusedargs_missingreturn.yml
@@ -44,8 +44,8 @@ jobs:
   linux:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-python@v5
+    - uses: actions/checkout@v6
+    - uses: actions/setup-python@v6
       with:
         python-version: '3.x'
     - name: Install Compilers
@@ -59,8 +59,8 @@ jobs:
   windows:
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-python@v5
+    - uses: actions/checkout@v6
+    - uses: actions/setup-python@v6
       with:
         python-version: '3.x'
 
diff --git a/.github/workflows/website.yml b/.github/workflows/website.yml
index d53aa713d1a9..6200f1e10c55 100644
--- a/.github/workflows/website.yml
+++ b/.github/workflows/website.yml
@@ -32,9 +32,9 @@ jobs:
       HAS_SSH_KEY: ${{ secrets.WEBSITE_PRIV_KEY != '' }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
-      - uses: actions/cache/restore@v4
+      - uses: actions/cache/restore@v5
         id: restore-cache
         with:
           # should use 'pip3 cache dir' to discover this path
@@ -48,7 +48,7 @@ jobs:
           sudo apt-get -y install python3-pip ninja-build libjson-glib-dev
           pip install hotdoc chevron strictyaml aiohttp
 
-      - uses: actions/cache/save@v4
+      - uses: actions/cache/save@v5
         with:
           # should use 'pip3 cache dir' to discover this path
           path: ~/.cache/pip
diff --git a/docs/markdown/Continuous-Integration.md b/docs/markdown/Continuous-Integration.md
index 89c86c42d224..b783f14a519a 100644
--- a/docs/markdown/Continuous-Integration.md
+++ b/docs/markdown/Continuous-Integration.md
@@ -267,9 +267,9 @@ jobs:
         meson_version: ["1.2.0", "1.3.0", "1.4.0"]
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
       - name: Install dependencies
@@ -281,7 +281,7 @@ jobs:
       - name: Run Tests
         run: meson test -C builddir/ -v
       - name: Upload Test Log
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: failure()
         with:
           name: ${{ matrix.os }}_Meson_Testlog