diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4c81b28..f656e5c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -74,7 +74,7 @@ jobs:
           - { os: macos-14,      compiler: apple-clang, preset: ubsan }
     steps:
       - name: Check out the source tree
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install a recent CMake and Ninja
         uses: lukka/get-cmake@latest
@@ -125,7 +125,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Check out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Ensure clang-format is available
         shell: bash
@@ -151,7 +151,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Check out (full history needed for diff)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -216,7 +216,7 @@ jobs:
         std: [c89, c99]
     steps:
       - name: Check out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Compile the minimal C consumer under -std=${{ matrix.std }} -pedantic -Werror
         shell: bash
@@ -239,7 +239,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Check out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install CMake and Ninja
         uses: lukka/get-cmake@latest
@@ -336,7 +336,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Check out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install Valgrind
         shell: bash
@@ -420,7 +420,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Check out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install CMake and Ninja
         uses: lukka/get-cmake@latest
@@ -468,7 +468,7 @@ jobs:
         mode: [MUTEX, LOCKFREE]
     steps:
       - name: Check out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install CMake and Ninja
         uses: lukka/get-cmake@latest
@@ -516,7 +516,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Check out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install CMake and Ninja
         uses: lukka/get-cmake@latest
@@ -560,7 +560,7 @@ jobs:
         mode: [MUTEX, LOCKFREE]
     steps:
       - name: Check out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install CMake and Ninja
         uses: lukka/get-cmake@latest
diff --git a/.github/workflows/docs-site.yml b/.github/workflows/docs-site.yml
index 3a409b0..bc0640d 100644
--- a/.github/workflows/docs-site.yml
+++ b/.github/workflows/docs-site.yml
@@ -29,7 +29,7 @@ jobs:
     name: Build API docs (warn-as-error gate)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Doxygen
         run: |
@@ -57,7 +57,7 @@ jobs:
 
       - name: Upload Pages artifact
         if: github.event_name != 'pull_request'
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v5
         with:
           path: build/doxygen/html
 
@@ -80,4 +80,4 @@ jobs:
     steps:
       - name: Deploy
         id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v5
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 33bfc31..e4e2061 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -26,8 +26,8 @@ jobs:
     name: Lint Markdown
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: DavidAnson/markdownlint-cli2-action@v16
+      - uses: actions/checkout@v6
+      - uses: DavidAnson/markdownlint-cli2-action@v23
         with:
           globs: |
             **/*.md
@@ -37,7 +37,7 @@ jobs:
     name: Check internal links
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Lychee — offline (internal links only)
         uses: lycheeverse/lychee-action@v2
         with:
@@ -48,7 +48,7 @@ jobs:
     name: ADR numbering & index sanity
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Verify sequential numbering and index coverage
         shell: bash
         run: |
@@ -97,7 +97,7 @@ jobs:
     name: Project consistency lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           # The i18n-freshness check compares each translation's recorded source
           # commit against the source file's history, so it needs full history,
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5ba6bd3..98fd585 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -110,7 +110,7 @@ jobs:
           echo "Building artifact for tag=$tag (version=$version) on ${{ matrix.platform }}"
 
       - name: Check out the tagged commit
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: ${{ steps.tag.outputs.tag }}
 
@@ -174,7 +174,7 @@ jobs:
           ls -la "pbr-memory-pool-${version}-${platform}.tar.gz"
 
       - name: Upload the platform artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: artifact-${{ matrix.platform }}
           path: pbr-memory-pool-${{ steps.tag.outputs.version }}-${{ matrix.platform }}.tar.gz
@@ -217,7 +217,7 @@ jobs:
           echo "Drafting release for tag=$tag (version=$version, prerelease=$prerelease)"
 
       - name: Check out the tagged commit (for release notes file)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: ${{ steps.tag.outputs.tag }}
 
@@ -234,7 +234,7 @@ jobs:
           echo "Release notes file present at: $notes"
 
       - name: Download all platform artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           path: artifacts/
           pattern: artifact-*
diff --git a/.markdownlint.json b/.markdownlint.json
index da10ca0..52134d8 100644
--- a/.markdownlint.json
+++ b/.markdownlint.json
@@ -5,5 +5,6 @@
   "MD024": { "siblings_only": true },
   "MD033": false,
   "MD036": false,
-  "MD040": false
+  "MD040": false,
+  "MD060": false
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6ea53a5..29cad7f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -42,6 +42,19 @@ dated version block (`## [X.Y.Z] — YYYY-MM-DD`) when a release PR closes a mil
   two README rows are re-pinned to the current source commit and flipped from
   `stale` back to `translated`, clearing the `i18n-freshness` consistency-lint
   flag the `v1.1.0` release raised. Documentation-only; no API change.
+- **CI GitHub Actions bumped off the deprecated Node 20 runtime onto Node 24.**
+  `actions/checkout` v4 → v6, `actions/upload-artifact` v4 → v7,
+  `actions/download-artifact` v4 → v8, `actions/deploy-pages` v4 → v5,
+  `actions/upload-pages-artifact` v3 → v5, and
+  `DavidAnson/markdownlint-cli2-action` v16 → v23 — all of which previously ran on
+  `node20`, which GitHub is retiring. The markdownlint bump pulls in a newer
+  markdownlint that adds the `MD060` (table-column-style) rule; it is disabled in
+  [`.markdownlint.json`](.markdownlint.json) because byte-aligned table pipes are
+  not achievable for the CJK-width tables in the `docs/i18n/` translations —
+  preserving the prior (rule-absent) behaviour. `ilammy/msvc-dev-cmd` stays on `v1`
+  (no Node 24 release exists upstream yet); `lukka/get-cmake@latest` and
+  `lycheeverse/lychee-action@v2` already run on Node 24 / as composite actions.
+  CI / build only; no API/ABI/behaviour change.
 
 ## [1.1.0] — 2026-06-14