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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 master, this PR will be updated.

Releases

use-effect-reducer@0.8.0

Minor Changes

• 5a68cd0: Fix the effect lifecycle under StrictMode and <Activity>, add an AbortSignal to effects, and publish as ESM only.

  • Fix: running effects (including initial effects) are resumed after StrictMode's simulated unmount/remount and when an <Activity> boundary becomes visible again. Previously they were stopped and never restarted. Resumed effects receive the latest state.
  • Fix: an effect stopped via exec.stop(entity) in the same reducer call that queued it no longer starts.
  • Fix: effects queued by a synchronous dispatch from inside an effect are no longer dropped under StrictMode.
  • dispatch passed to effect implementations now accepts string events, like the hook's dispatch.
  • EffectEntity['status'] is now 'idle' | 'started' | 'stopped' (was a non-exported numeric enum). Dispatch and EntityStatus types are exported.
  • Lazy initialization uses useReducer's init argument instead of reading a ref during render (React Compiler friendly).
  • Effect implementations receive a 4th argument, { signal }: an AbortSignal aborted when the effect stops. Effects may be async.
  • Effects-map implementations are looked up when an effect starts (or resumes), so they see the latest props.
  • exec.stop(entity) accepts undefined.
  • Types: string events are only accepted for events without required payload; exec/dispatch in the initial state getter are fully typed.
  • Packaging: the package is ESM-only. CommonJS consumers can require() it on Node.js 20.19+ and 22.12+, which engines.node now requires.

Patch Changes

• 608692b: The hook passes the React Compiler lint rules (eslint-plugin-react-hooks recommended config). The effects map is now read only from effects, never during render.