diff --git a/.github/workflows/getdeps_linux.yml b/.github/workflows/getdeps_linux.yml
index 732bda9f8dab..762928efec77 100644
--- a/.github/workflows/getdeps_linux.yml
+++ b/.github/workflows/getdeps_linux.yml
@@ -17,7 +17,7 @@ jobs:
   build:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Show disk space at start
       run: df -h
     - name: Free up disk space
@@ -702,7 +702,7 @@ jobs:
       run: python3 build/fbcode_builder/getdeps.py --allow-system-packages build --src-dir=. watchman --project-install-prefix watchman:/usr/local
     - name: Copy artifacts
       run: python3 build/fbcode_builder/getdeps.py --allow-system-packages fixup-dyn-deps --strip --src-dir=. watchman _artifacts/linux --project-install-prefix watchman:/usr/local --final-install-prefix /usr/local
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       with:
         name: watchman
         path: _artifacts
diff --git a/.github/workflows/getdeps_mac.yml b/.github/workflows/getdeps_mac.yml
index c163870e6dfe..665bde382b12 100644
--- a/.github/workflows/getdeps_mac.yml
+++ b/.github/workflows/getdeps_mac.yml
@@ -17,7 +17,7 @@ jobs:
   build:
     runs-on: macOS-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Show disk space at start
       run: df -h
     - name: Free up disk space
@@ -662,7 +662,7 @@ jobs:
       run: python3 build/fbcode_builder/getdeps.py --allow-system-packages build --src-dir=. watchman --project-install-prefix watchman:/usr/local
     - name: Copy artifacts
       run: python3 build/fbcode_builder/getdeps.py --allow-system-packages fixup-dyn-deps --src-dir=. watchman _artifacts/mac --project-install-prefix watchman:/usr/local --final-install-prefix /usr/local
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       with:
         name: watchman
         path: _artifacts
diff --git a/.github/workflows/getdeps_windows.yml b/.github/workflows/getdeps_windows.yml
index b7556528fa4d..69c42c5a81aa 100644
--- a/.github/workflows/getdeps_windows.yml
+++ b/.github/workflows/getdeps_windows.yml
@@ -26,7 +26,7 @@ jobs:
         git config --system core.autocrlf false &&
         git config --system core.symlinks true
       shell: cmd
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - id: paths
       name: Query paths
       run: python build/fbcode_builder/getdeps.py query-paths --recursive --src-dir=. watchman  >> $env:GITHUB_OUTPUT
@@ -626,7 +626,7 @@ jobs:
       run: python build/fbcode_builder/getdeps.py build --src-dir=. watchman
     - name: Copy artifacts
       run: python build/fbcode_builder/getdeps.py fixup-dyn-deps --src-dir=. watchman _artifacts/windows --final-install-prefix /usr/local
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       with:
         name: watchman
         path: _artifacts
diff --git a/.github/workflows/package.yml b/.github/workflows/package.yml
index d31dbdb3e727..5c1af2729a62 100644
--- a/.github/workflows/package.yml
+++ b/.github/workflows/package.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
@@ -35,7 +35,7 @@ jobs:
       image: ${{ format('ghcr.io/{0}/watchman-build-env:latest', github.repository) }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: rustup default stable
         run: rustup default stable
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1ca13eaf7d9b..4ee48c8d4d48 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Login to GitHub Container Registry
@@ -53,7 +53,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Login to GitHub Container Registry
@@ -74,7 +74,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Login to GitHub Container Registry
@@ -95,7 +95,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Login to GitHub Container Registry
@@ -116,7 +116,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Login to GitHub Container Registry
@@ -144,7 +144,7 @@ jobs:
       - name: Fix HOME
         run: echo HOME=/root >> $GITHUB_ENV
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Install system dependencies
         run: "./install-system-packages.sh"
       - name: Fix dubious ownership
@@ -175,7 +175,7 @@ jobs:
       - name: Fix HOME
         run: echo HOME=/root >> $GITHUB_ENV
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Install system dependencies
         run: "./install-system-packages.sh"
       - name: Fix dubious ownership
@@ -206,7 +206,7 @@ jobs:
       - name: Fix HOME
         run: echo HOME=/root >> $GITHUB_ENV
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Install system dependencies
         run: "./install-system-packages.sh"
       - name: Fix dubious ownership
@@ -238,7 +238,7 @@ jobs:
       - name: Fix HOME
         run: echo HOME=/root >> $GITHUB_ENV
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Install system dependencies
         run: "./install-system-packages.sh"
       - name: Fix dubious ownership
@@ -270,7 +270,7 @@ jobs:
       - name: Fix HOME
         run: echo HOME=/root >> $GITHUB_ENV
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Install system dependencies
         run: "./install-system-packages.sh"
       - name: Fix dubious ownership
@@ -296,7 +296,7 @@ jobs:
     needs: prepare
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Build watchman
         run: "python3 build/fbcode_builder/getdeps.py build --src-dir=. watchman  --project-install-prefix watchman:/usr/local"
       - name: Copy artifacts
@@ -319,7 +319,7 @@ jobs:
     needs: prepare
     runs-on: macOS-10.15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Build watchman
         run: "SDKROOT=$(xcrun --show-sdk-path --sdk macosx11.1) python3 build/fbcode_builder/getdeps.py --allow-system-packages build --src-dir=. watchman  --project-install-prefix watchman:/usr/local"
       - name: Copy artifacts
@@ -342,7 +342,7 @@ jobs:
     needs: prepare
     runs-on: windows-2019
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Export boost environment
         run: echo BOOST_ROOT=%BOOST_ROOT_1_69_0% >> %GITHUB_ENV%
         shell: cmd