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Build/Test Tools: Upgrade Node.js to 24.x in the 5.6 branch - #15702

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sirreal wants to merge 2 commits into
WordPress:5.6from
sirreal:build/node-24-5.6

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@sirreal

@sirreal sirreal commented Nov 6, 2026

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Upgrades the 5.6 branch to Node.js 24.x and npm 11.x. Also:

  • Runs Grunt with --no-maglev --no-concurrent-sparkplug, as r63771 does on trunk, to avoid hangs at exit on Node.js 24.
  • Runs Grunt with --openssl-legacy-provider, because webpack 4 hashes with md4, which OpenSSL 3 disables.
  • Regenerates package-lock.json with npm 11, whose npm ci rejects the npm 6 lockfile's entry for jquery-color, and sets legacy-peer-deps = true in .npmrc so npm 11 resolves peer dependencies as npm 6 did. No package versions change.
  • Overrides node-sass (a dependency of @wordpress/scripts 12) with sass, because node-sass 4.14.1 does not compile on Node.js 24. The build does not use it.

Trac ticket: TBD

Use of AI Tools

AI assistance: Yes
Tool(s): Claude Code
Model(s): Claude Opus 5.5
Used for: Applying the changes to each branch, regenerating the lockfile, building on Node.js 24 and comparing the output with the release, and drafting this description.


This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.

Runs Grunt with `--no-maglev --no-concurrent-sparkplug`, as trunk does, to avoid hangs at exit on Node.js 24.
Runs Grunt with `--openssl-legacy-provider`, because webpack 4 hashes with md4, which OpenSSL 3 disables.
Regenerates `package-lock.json` with npm 11 and sets `legacy-peer-deps = true` in `.npmrc`. No package versions change.
Overrides `node-sass`, a dependency of `@wordpress/scripts` 12, with `sass`, because node-sass 4.14.1 does not compile on Node.js 24. The build does not use it.
CI's macOS jobs found `package-lock.json` modified after installing and building: the 66 entries bundled inside fsevents 1.2.9 lose `integrity` and `deprecated` and gain `license`. This commits that file. No package versions change.
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github-actions Bot commented Nov 6, 2026

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Test using WordPress Playground

The changes in this pull request can previewed and tested using a WordPress Playground instance.

WordPress Playground is an experimental project that creates a full WordPress instance entirely within the browser.

Some things to be aware of

  • All changes will be lost when closing a tab with a Playground instance.
  • All changes will be lost when refreshing the page.
  • A fresh instance is created each time the link below is clicked.
  • Every time this pull request is updated, a new ZIP file containing all changes is created. If changes are not reflected in the Playground instance,
    it's possible that the most recent build failed, or has not completed. Check the list of workflow runs to be sure.

For more details about these limitations and more, check out the Limitations page in the WordPress Playground documentation.

Test this pull request with WordPress Playground.

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