Release tracking

[primer]

This PR was opened by the Changesets release GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated.

Releases

@primer/react@38.27.0

Minor Changes

• #7900 49a546f Thanks @mattcosta7! - PageLayout.Sidebar (and SplitPageLayout.Sidebar): add controlled-width support via currentWidth + onResizeEnd, matching the discriminated-union API already on PageLayout.Pane. The underlying usePaneWidth hook already supported these options; this wires them through the component's prop surface. Existing usage is unchanged — the props are opt-in and the uncontrolled (default or widthStorageKey-backed) behavior is preserved exactly.

• #7906 adc5299 Thanks @jonrohan! - Text: Add whiteSpace prop to control the CSS white-space property

Patch Changes

• #7894 af4541d Thanks @mattcosta7! - ActionList: Replace :has(...) selectors on ActionList.Item, InactiveButtonWrap, and TrailingActionButton with JS-derived data attributes (data-has-trailing-action, data-trailing-action-loading, data-position, data-has-label). Reduces style-recalculation cost on lists that render many items. No visual or behavioral changes.

[github-actions]

❗ Pre-merge checklist

Please ensure these items are checked before merging:

🔎 Smoke test

• All CI checks pass on this pull request
• Docs and Storybook open in a browser

🌏 Integration tests

• Successful integration test with github/github-ui as a primary consumer of primer/react (automated pull request)
  • Verify all CI checks have passed on automated pull request
  • Manually test critical paths in preview
  • Manually test release-specific bugfixes and/or feature work as described in preview

✅ Peer Review

• Create release review issue for Issues team (example)
• Wait for approval from Issues team before merging

🤔 Sanity test

• All bugfixes in this release have resolved their corresponding issues
• The issues for any reverted PRs have been re-opened and commented on with a link to the reverted PR
• No noticeable regressions have been introduced as a result of changes in this release
• Release notes accurately describe the changes made

❗ Post-merge checklist

Please ensure these items are checked after merging:

🚢 Version upgrade, cleanup, and documentation

• Upgrade @primer/react version at github/github-ui
• Close Integration test PR and delete branch
• Leave a /short-report comment on quarterly release conductor tracking issue summarizing time spent on release activities and any challenges encountered
• Leave any testing notes on the automated per-shift release tracking issue. In particular, describe any issues encountered during your testing. This is helpful in providing historical context to the next release conductor as well as other maintainers.

[github-actions]

⚠️ Action required

👋 Hi, this pull request contains changes to the source code that github/github-ui depends on. If you are GitHub staff, test these changes with github/github-ui using the integration workflow. Check the integration testing docs for step-by-step instructions. Or, apply the integration-tests: skipped manually label to skip these checks.

To publish a canary release for integration testing, apply the Canary Release label to this PR.