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/mcp@0.4.0

Minor Changes

• #8058 0a49d7d Thanks @mattobee! - MCP server: Add Copy, Delete, Filter and Search scenario patterns to the list_patterns and get_pattern tools. Scenario patterns take precedence over UI patterns when a name matches.

Patch Changes

• Updated dependencies [0add561, 6131a94, 5b3c806, cb79351, f052126, b906268, 73a45df, 6131a94, 6131a94, e58907c]:
  • @primer/react@38.30.0

@primer/react@38.30.0

Minor Changes

• #8048 0add561 Thanks @copilot-swe-agent! - ActionBar: Add ActionBar.Button for rendering text buttons that overflow into the menu, alongside the existing ActionBar.IconButton

• #8031 cb79351 Thanks @janmaarten-a11y! - Add a NavList.Heading slot that names the navigation region. It renders an h2
  by default (configurable to h3 via as), supports a visuallyHidden variant,
  labels the nav landmark via aria-labelledby, and makes NavList.Group
  headings default to one level deeper (h3, or h4 under an h3 heading) for a
  correct heading hierarchy.

• #7991 b906268 Thanks @llastflowers! - Add data-component attributes and associated tests for:

  Radio
  RadioGroup
  RelativeTime
  ScrollableRegion
  SegmentedControl
  Select
  SideNav
  SkeletonBox
  SkeletonAvatar
  SkeletonText
  Spinner

• #8026 73a45df Thanks @TylerJDev! - SelectPanel: Add cssAnchorPositioningSettings prop to customize CSS anchor positioning behavior

• #7506 e58907c Thanks @iansan5653! - Refactors UnderlineNav overflow handling to use CSS-based overflow detection instead of JavaScript width measurements, eliminating layout shift (CLS) issues and improving performance. The overflow menu is now implemented with ActionMenu, and item registration uses a descendant registry instead of the React.Children API. Consumer-facing changes: items can now be wrapped in fragments or wrapper components; the current item may appear in the overflow menu when the viewport is narrow; and the overflow menu button is right-aligned.

Patch Changes

• #8021 6131a94 Thanks @mattcosta7! - Announce, AriaStatus, AriaAlert: Avoid an extra React render on every content change (e.g. per keystroke when tied to an input)

• #7935 5b3c806 Thanks @copilot-swe-agent! - ConfirmationDialog: useConfirm/confirm now removes its host element from document.body after the dialog is closed, and uses a fresh host element per call, so the empty container no longer lingers or leaks into other components and tests

• #8007 f052126 Thanks @copilot-swe-agent! - Improve style-recalc performance by making ButtonGroup, DataTable Pagination, and Checkbox CSS selectors bucketable (removing universal */:not([attr]) subjects and :is() selector-list merges)

• #8021 6131a94 Thanks @mattcosta7! - Textarea: Improve typing performance by deriving the character counter in render instead of in effects, removing extra re-renders on each keystroke.

• #8021 6131a94 Thanks @mattcosta7! - TextInput: Improve typing performance by deriving the character counter in render instead of in effects, removing extra re-renders on each keystroke.

[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. If this doesn't work, you can also use the original workflow here. 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.