diff --git a/.github/workflows/check-style.yml b/.github/workflows/check-style.yml
index c052a5df2381e9..19a145d4ad0c5a 100644
--- a/.github/workflows/check-style.yml
+++ b/.github/workflows/check-style.yml
@@ -20,7 +20,7 @@ jobs:
       jobname: ClangFormat
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0
 
diff --git a/.github/workflows/check-whitespace.yml b/.github/workflows/check-whitespace.yml
index d0a78fc426f9e4..928fd4cfe2456d 100644
--- a/.github/workflows/check-whitespace.yml
+++ b/.github/workflows/check-whitespace.yml
@@ -19,7 +19,7 @@ jobs:
   check-whitespace:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0
 
diff --git a/.github/workflows/coverity.yml b/.github/workflows/coverity.yml
index 01a0437b2f2634..cfa17d394a7dbc 100644
--- a/.github/workflows/coverity.yml
+++ b/.github/workflows/coverity.yml
@@ -38,7 +38,7 @@ jobs:
       COVERITY_LANGUAGE: cxx
       COVERITY_PLATFORM: overridden-below
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: install minimal Git for Windows SDK
         if: contains(matrix.os, 'windows')
         uses: git-for-windows/setup-git-for-windows-sdk@v1
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a92872ee7509ee..0840a3e2e81a80 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -112,7 +112,7 @@ jobs:
       group: windows-build-${{ github.ref }}
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: git-for-windows/setup-git-for-windows-sdk@v1
     - name: build
       shell: bash
@@ -140,7 +140,7 @@ jobs:
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
     - name: download tracked files and build artifacts
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
       with:
         name: windows-artifacts
         path: ${{github.workspace}}
@@ -176,10 +176,10 @@ jobs:
       group: vs-build-${{ github.ref }}-${{ matrix.arch }}
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: git-for-windows/setup-git-for-windows-sdk@v1
     - name: initialize vcpkg
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         repository: 'microsoft/vcpkg'
         path: 'compat/vcbuild/vcpkg'
@@ -229,7 +229,7 @@ jobs:
     steps:
     - uses: git-for-windows/setup-git-for-windows-sdk@v1
     - name: download tracked files and build artifacts
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
       with:
         name: vs-artifacts-x64
         path: ${{github.workspace}}
@@ -261,7 +261,7 @@ jobs:
       group: windows-meson-build-${{ github.ref }}
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-python@v5
     - name: Set up dependencies
       shell: pwsh
@@ -289,13 +289,13 @@ jobs:
       group: windows-meson-test-${{ matrix.nr }}-${{ github.ref }}
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-python@v5
     - name: Set up dependencies
       shell: pwsh
       run: pip install meson ninja
     - name: Download build artifacts
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
       with:
         name: windows-meson-artifacts
         path: build
@@ -334,7 +334,7 @@ jobs:
       TEST_OUTPUT_DIRECTORY: ${{github.workspace}}/t
     runs-on: ${{matrix.vector.pool}}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - run: ci/install-dependencies.sh
     - run: ci/run-build-and-tests.sh
     - name: print test failures
@@ -355,7 +355,7 @@ jobs:
       CI_JOB_IMAGE: ubuntu-latest
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - run: ci/install-dependencies.sh
     - run: ci/run-build-and-minimal-fuzzers.sh
   dockerized:
@@ -432,7 +432,7 @@ jobs:
         else
           apt-get -q update && apt-get -q -y install git
         fi
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - run: ci/install-dependencies.sh
     - run: useradd builder --create-home
     - run: chown -R builder .
@@ -457,7 +457,7 @@ jobs:
       group: static-analysis-${{ github.ref }}
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - run: ci/install-dependencies.sh
     - run: ci/run-static-analysis.sh
     - run: ci/check-directional-formatting.bash
@@ -472,7 +472,7 @@ jobs:
       group: sparse-${{ github.ref }}
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Install other dependencies
       run: ci/install-dependencies.sh
     - run: make sparse
@@ -488,6 +488,6 @@ jobs:
       CI_JOB_IMAGE: ubuntu-latest
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - run: ci/install-dependencies.sh
     - run: ci/test-documentation.sh
diff --git a/.github/workflows/nano-server.yml b/.github/workflows/nano-server.yml
index 3d943c23d2616d..85b3ed5f52ed4d 100644
--- a/.github/workflows/nano-server.yml
+++ b/.github/workflows/nano-server.yml
@@ -14,7 +14,7 @@ jobs:
       IMAGE: mcr.microsoft.com/powershell:nanoserver-ltsc2022
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: git-for-windows/setup-git-for-windows-sdk@v1
       - name: build Git
         shell: bash