2026-03-05, Version 20.20.1 'Iron' (LTS), @marco-ippolito

.github/workflows/auto-start-ci.yml

@@ -21,7 +21,7 @@ jobs:
     permissions:
       pull-requests: read
     if: github.repository == 'nodejs/node'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     outputs:
       numbers: ${{ steps.get_prs_for_ci.outputs.numbers }}
     steps:
@@ -43,7 +43,7 @@ jobs:
       pull-requests: write
     needs: get-prs-for-ci
     if: needs.get-prs-for-ci.outputs.numbers != ''
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:

.github/workflows/build-tarball.yml

@@ -28,7 +28,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  PYTHON_VERSION: '3.12'
+  PYTHON_VERSION: '3.14'
   FLAKY_TESTS: keep_retrying
 
 permissions:
@@ -37,7 +37,7 @@ permissions:
 jobs:
   build-tarball:
     if: github.event.pull_request.draft == false
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:
@@ -66,9 +66,10 @@ jobs:
     needs: build-tarball
     runs-on: ubuntu-24.04
     env:
-      CC: sccache clang
-      CXX: sccache clang++
-      SCCACHE_GHA_ENABLED: 'true'
+      CC: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache' || '' }} clang
+      CXX: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache' || '' }} clang++
+      SCCACHE_GHA_ENABLED: ${{ github.base_ref == 'main' || github.ref_name == 'main' }}
+      SCCACHE_IDLE_TIMEOUT: '0'
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:
@@ -78,6 +79,7 @@ jobs:
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: Set up sccache
+        if: github.base_ref == 'main' || github.ref_name == 'main'
         uses: Mozilla-Actions/sccache-action@7d986dd989559c6ecdb630a3fd2557667be217ad  # v0.0.9
         with:
           version: v0.10.0

.github/workflows/close-stale-feature-requests.yml

@@ -39,7 +39,7 @@ jobs:
       issues: write  # for actions/stale to close stale issues
       pull-requests: write  # for actions/stale to close stale PRs
     if: github.repository == 'nodejs/node'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/stale@5bef64f19d7facfb25b37b414482c7164d639639  # v9.1.0
         with:

.github/workflows/close-stale-pull-requests.yml

@@ -33,7 +33,7 @@ jobs:
     permissions:
       pull-requests: write  # for actions/stale to close stale PRs
     if: github.repository == 'nodejs/node'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Set default end date which is 1 year ago
         run: echo "END_DATE=$(date --date='525600 minutes ago' --rfc-2822)"  >> "$GITHUB_ENV"

.github/workflows/close-stalled.yml

@@ -18,7 +18,7 @@ jobs:
       issues: write  # for actions/stale to close stale issues
       pull-requests: write  # for actions/stale to close stale PRs
     if: github.repository == 'nodejs/node'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/stale@5bef64f19d7facfb25b37b414482c7164d639639  # v9.1.0
         with:

.github/workflows/comment-labeled.yml

@@ -24,7 +24,7 @@ jobs:
       issues: write
       pull-requests: write
     if: github.repository == 'nodejs/node' && github.event.label.name == 'stalled'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Post stalled comment
         env:
@@ -36,7 +36,7 @@ jobs:
     permissions:
       pull-requests: write
     if: github.repository == 'nodejs/node' && github.event_name == 'pull_request_target' && github.event.label.name == 'fast-track'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Request Fast-Track
         env:
@@ -47,7 +47,7 @@ jobs:
     permissions:
       pull-requests: write
     if: github.repository == 'nodejs/node' && github.event_name == 'pull_request_target' && github.event.label.name == 'notable-change'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Add notable change description
         env:

.github/workflows/commit-lint.yml

@@ -10,7 +10,7 @@ permissions:
 
 jobs:
   lint-commit-message:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Compute number of commits in the PR
         id: nb-of-commits

.github/workflows/commit-queue.yml

@@ -26,7 +26,7 @@ jobs:
     permissions:
       pull-requests: read
     if: github.repository == 'nodejs/node'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     outputs:
       numbers: ${{ steps.get_mergeable_prs.outputs.numbers }}
     steps:
@@ -57,7 +57,7 @@ jobs:
   commitQueue:
     needs: get_mergeable_prs
     if: needs.get_mergeable_prs.outputs.numbers != ''
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:

.github/workflows/coverage-linux-without-intl.yml

@@ -34,11 +34,12 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  PYTHON_VERSION: '3.12'
+  PYTHON_VERSION: '3.14'
   FLAKY_TESTS: keep_retrying
-  CC: sccache clang
-  CXX: sccache clang++
-  SCCACHE_GHA_ENABLED: 'true'
+  CC: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache' || '' }} clang
+  CXX: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache' || '' }} clang++
+  SCCACHE_GHA_ENABLED: ${{ github.base_ref == 'main' || github.ref_name == 'main' }}
+  SCCACHE_IDLE_TIMEOUT: '0'
 
 permissions:
   contents: read
@@ -57,18 +58,19 @@ jobs:
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: Set up sccache
+        if: github.base_ref == 'main' || github.ref_name == 'main'
         uses: Mozilla-Actions/sccache-action@7d986dd989559c6ecdb630a3fd2557667be217ad  # v0.0.9
         with:
           version: v0.10.0
       - name: Environment Information
         run: npx envinfo
       - name: Install gcovr
         run: pip install gcovr==7.2
-      - name: Build
-        run: make build-ci -j4 V=1 CONFIG_FLAGS="--error-on-warn --coverage --without-intl"
+      - name: Configure
+        run: ./configure --verbose --error-on-warn --coverage --without-intl
       # TODO(bcoe): fix the couple tests that fail with the inspector enabled.
       # The cause is most likely coverage's use of the inspector.
-      - name: Test
+      - name: Build and test
         run: NODE_V8_COVERAGE=coverage/tmp make test-cov -j4 V=1 TEST_CI_ARGS="-p dots  --measure-flakiness 9" || exit 0
       - name: Report JS
         run: npx c8 report --check-coverage

.github/workflows/coverage-linux.yml

@@ -34,11 +34,12 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  PYTHON_VERSION: '3.12'
+  PYTHON_VERSION: '3.14'
   FLAKY_TESTS: keep_retrying
-  CC: sccache clang
-  CXX: sccache clang++
-  SCCACHE_GHA_ENABLED: 'true'
+  CC: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache' || '' }} clang
+  CXX: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache' || '' }} clang++
+  SCCACHE_GHA_ENABLED: ${{ github.base_ref == 'main' || github.ref_name == 'main' }}
+  SCCACHE_IDLE_TIMEOUT: '0'
 
 permissions:
   contents: read
@@ -47,7 +48,7 @@ jobs:
   coverage-linux:
     # Disabled because "Report JS" step was crashing.
     if: false
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-24.04-arm
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:
@@ -57,18 +58,19 @@ jobs:
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: Set up sccache
+        if: github.base_ref == 'main' || github.ref_name == 'main'
         uses: Mozilla-Actions/sccache-action@7d986dd989559c6ecdb630a3fd2557667be217ad  # v0.0.9
         with:
           version: v0.10.0
       - name: Environment Information
         run: npx envinfo
       - name: Install gcovr
         run: pip install gcovr==7.2
-      - name: Build
-        run: make build-ci -j4 V=1 CONFIG_FLAGS="--error-on-warn --coverage"
+      - name: Configure
+        run: ./configure --verbose --error-on-warn --coverage
       # TODO(bcoe): fix the couple tests that fail with the inspector enabled.
       # The cause is most likely coverage's use of the inspector.
-      - name: Test
+      - name: Build and test
         run: NODE_V8_COVERAGE=coverage/tmp make test-cov -j4 V=1 TEST_CI_ARGS="-p dots  --measure-flakiness 9" || exit 0
       - name: Report JS
         run: npx c8 report --check-coverage

.github/workflows/coverage-windows.yml

@@ -34,7 +34,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  PYTHON_VERSION: '3.12'
+  PYTHON_VERSION: '3.14'
   FLAKY_TESTS: keep_retrying
 
 permissions:

.github/workflows/create-release-proposal.yml

@@ -31,7 +31,7 @@ jobs:
       RELEASE_BRANCH: v${{ inputs.release-line }}.x
       RELEASE_DATE: ${{ inputs.release-date }}
       RELEASE_LINE: ${{ inputs.release-line }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:

.github/workflows/daily-wpt-fyi.yml

@@ -13,15 +13,15 @@ on:
     - cron: 30 0 * * *
 
 env:
-  PYTHON_VERSION: '3.12'
+  PYTHON_VERSION: '3.14'
 
 permissions:
   contents: read
 
 jobs:
   collect-versions:
     if: github.repository == 'nodejs/node' || github.event_name == 'workflow_dispatch'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     outputs:
       matrix: ${{ steps.query.outputs.matrix }}
     steps:
@@ -36,7 +36,7 @@ jobs:
       matrix:
         node-version: ${{ fromJSON(needs.collect-versions.outputs.matrix) }}
       fail-fast: false
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     steps:
       - name: Set up Python ${{ env.PYTHON_VERSION }}
         uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c  # v6.0.0

.github/workflows/daily.yml

@@ -13,7 +13,7 @@ permissions:
 
 jobs:
   build-lto:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-24.04-arm
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:

.github/workflows/doc.yml

@@ -22,7 +22,7 @@ permissions:
 jobs:
   build-docs:
     if: github.event.pull_request.draft == false
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with:

.github/workflows/find-inactive-collaborators.yml

@@ -16,7 +16,7 @@ permissions:
 jobs:
   find:
     if: github.repository == 'nodejs/node'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2

.github/workflows/find-inactive-tsc.yml

@@ -16,7 +16,7 @@ permissions:
 jobs:
   find:
     if: github.repository == 'nodejs/node'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
 
     steps:
       - name: Checkout the repo

.github/workflows/label-flaky-test-issue.yml

@@ -10,7 +10,7 @@ permissions:
 jobs:
   label:
     if: github.event.label.name == 'flaky-test'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     permissions:
       issues: write
     steps:

.github/workflows/label-pr.yml

@@ -9,7 +9,7 @@ permissions:
 
 jobs:
   label:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
 
     steps:
       - uses: nodejs/node-pr-labeler@d4cf1b8b9f23189c37917000e5e17e796c770a6b  # v1

.github/workflows/license-builder.yml

@@ -15,7 +15,7 @@ jobs:
       contents: write  # for gr2m/create-or-update-pull-request-action to push local changes
       pull-requests: write  # for gr2m/create-or-update-pull-request-action to create a PR
     if: github.repository == 'nodejs/node'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
         with: