Release tracking 38.29.0

[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@38.29.0

Minor Changes

• #8009 2cf75b5 Thanks @joshblack! - Update CSS build options to compile down :is() selectors

• #7994 8cb7f6d Thanks @TylerJDev! - ActionList: Adds tooltipDirection prop to ActionList.TrailingAction

• #7867 4ec4248 Thanks @llastflowers! - Add data-component attributes and associated tests for ActionMenu, AnchoredOverlay, Autocomplete, and NavList

• #7897 1f7b8af Thanks @liuliu-dev! - Add support for the as prop on TreeView.Item. This enables rendering the
  treeitem as a different element (e.g. as="a" for native anchors, or a custom
  router-link component) while preserving all existing keyboard, focus, and ARIA
  behavior.

  When as is omitted, the existing markup is unchanged: an <li> is rendered
  as the role="treeitem" element. When as is provided, the polymorphic
  element is rendered as the treeitem and is wrapped in an <li role="none">
  so the markup remains valid (a <ul role="tree"> may only directly contain
  <li> elements).

Patch Changes

• #7976 1fac927 Thanks @copilot-swe-agent! - NavList: add a small gap between items for readability, including before expanded sub-navs, behind the primer_react_action_list_item_gap feature flag

• #7999 eada357 Thanks @copilot-swe-agent! - Breadcrumbs: Improve rendering performance and refresh the overflow menu when breadcrumb content changes without changing the number of items.

• #7929 48c34ca Thanks @joshblack! - FilteredActionList: Make body skeleton widths stable for server rendering

• #7985 969c874 Thanks @joshblack! - AnchoredOverlay: Render the popover target attribute correctly for popover anchors

• #7984 06fdad4 Thanks @joshblack! - CircleBadge, ActionList: Prevent internal props from rendering on DOM elements

• #7978 e3f655c Thanks @copilot-swe-agent! - PageHeader.ParentLink: Forward unknown props (e.g. to) to the underlying element, enabling client-side routing with polymorphic as.

• #7930 f32ac0f Thanks @copilot-swe-agent! - Blankslate: reduce size="small" padding to var(--base-size-16) for denser layouts

[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.