@primer/react@38.32.0

Minor Changes

• #8133 0cb8e17 Thanks @iansan5653! - UnderlineNav: Replaced dynamic icon visibility with static breakpoints to avoid flickering. Breakpoints customizable via the hideIconsBreakpoint prop.

• #8112 50face0 Thanks @llastflowers! - Add data-component attributes and associated tests for:

  SplitPageLayout
  Stack
  StateLabel
  SubNav
  TabNav
  Text
  TextArea
  ThemeProvider

Patch Changes

• #7901 8288ed9 Thanks @mattcosta7! - PageHeader: improve rendering performance by removing expensive :has() selectors. No visual or API changes.

• #8115 07c530a Thanks @mattcosta7! - Improve rendering performance in Safari by removing expensive :has() selectors from ActionList/NavList, Breadcrumbs, SelectPanel, and SegmentedControl. No visual or API changes.

• #8024 18e3b7d Thanks @mattcosta7! - ToggleSwitch: Fire onChange from the user interaction instead of an effect, so it no longer fires on mount or when a controlled checked value changes externally.

• #8035 723f4d6 Thanks @mattcosta7! - UnderlineNav, ActionBar: Detect item overflow with a single shared IntersectionObserver per component instead of one observer per item, reducing observer churn during resize. No public API changes.

• #8001 4edc824 Thanks @mattcosta7! - useMedia now reads the live matchMedia value on the first client render instead of after an effect, removing a redundant render pass. defaultState is only used for the SSR/hydration snapshot (no public API changes).

• #8023 71fa75c Thanks @mattcosta7! - FormControl: Avoid an extra re-render when showing a validation message.