GitHub Actions warns Node 20 is deprecated, running with Node 24 by default
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Node 20 is being deprecated. This workflow is running with Node 24 by default. ... ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=trueAlso matches
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24actions/upload-artifact@v4 Node.js 20 is deprecatedpages-build-deployment Node 20 is deprecated
github-actions · github-pages · ci · node · upload-artifact · deprecation · verified-in-production
Free diagnosis
The warning names a JavaScript action whose own `runs.using` metadata still declares Node 20; this is not the Node version installed for later `run:` steps. GitHub made Node 24 the default action runtime on 2026-06-16. When the annotation appears in GitHub's generated `pages-build-deployment` workflow, the caller can be platform-managed and there may be no repository workflow file to edit.
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