diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ab698934c8..4eb9249cc9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,7 +37,7 @@ jobs:
         shell: bash  # Use `bash` even in the Windows job.
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: extractions/setup-just@v3
       - name: Read the MSRV
         run: |
@@ -59,7 +59,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: extractions/setup-just@v3
       - name: Ensure we start out clean
         run: git diff --exit-code
@@ -74,7 +74,7 @@ jobs:
     container: debian:stable-slim
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Prerequisites
         run: |
           prerequisites=(
@@ -176,7 +176,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: Setup dependencies
@@ -196,7 +196,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - uses: extractions/setup-just@v3
@@ -215,7 +215,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: cargo check default features
@@ -235,7 +235,7 @@ jobs:
     runs-on: windows-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - uses: taiki-e/install-action@v2
@@ -304,7 +304,7 @@ jobs:
           apt-get update
           apt-get install --no-install-recommends -y -- "${prerequisites[@]}"
         shell: bash  # This step needs `bash`, and the default in container jobs is `sh`.
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Rust via Rustup
         run: |
           # Specify toolchain to avoid possible misdetection based on the 64-bit running kernel.
@@ -330,7 +330,7 @@ jobs:
       TARGET: i686-pc-windows-msvc
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
         with:
           targets: ${{ env.TARGET }}
@@ -347,7 +347,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable
@@ -377,7 +377,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: EmbarkStudios/cargo-deny-action@v2
         with:
           command: check advisories
@@ -387,7 +387,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: EmbarkStudios/cargo-deny-action@v2
         with:
           command: check bans licenses sources
@@ -406,7 +406,7 @@ jobs:
       TARGET: ${{ matrix.target }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Rust
         run: |
           rustup update stable
@@ -485,7 +485,7 @@ jobs:
         shell: bash
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Check that working tree is initially clean
         run: |
           set -x
@@ -521,7 +521,7 @@ jobs:
         run: |
           relative_workflow_with_ref="${GITHUB_WORKFLOW_REF#"$GITHUB_REPOSITORY/"}"
           echo "WORKFLOW_PATH=${relative_workflow_with_ref%@*}" >> "$GITHUB_ENV"
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           sparse-checkout: ${{ env.WORKFLOW_PATH }}
       - name: Get all jobs
diff --git a/.github/workflows/cifuzz.yml b/.github/workflows/cifuzz.yml
index 6f6c70b39a..e4900b1dd9 100644
--- a/.github/workflows/cifuzz.yml
+++ b/.github/workflows/cifuzz.yml
@@ -39,7 +39,7 @@ jobs:
           fuzz-seconds: 600
 
       - name: Upload Crash
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         if: failure() && steps.build.outcome == 'success'
         with:
           name: artifacts
diff --git a/.github/workflows/cron.yml b/.github/workflows/cron.yml
index a341675c62..0a38082860 100644
--- a/.github/workflows/cron.yml
+++ b/.github/workflows/cron.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: Swatinem/rust-cache@v2
       - name: stress
         run: make stress
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index af5096d2d3..1c8f0684cd 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -40,7 +40,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Get the release version from the tag
         if: env.VERSION == ''
@@ -233,7 +233,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install packages (Ubuntu)
         # Because openssl doesn't work on musl by default, we resort to max-pure.
@@ -536,7 +536,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Rust
         uses: dtolnay/rust-toolchain@master
         with: