- Added fetcher key support (useFetcher({key}), fetcherKey prop on Form/useSubmit) and a future.v7 fetcherPersist flag for persisting fetchers until idle.
- Extended matchPath to accept optional path segments and updated router future prop typing to accept partial configs.
- Fixed type definitions for router.getFetcher/router.deleteFetcher and corrected future prop typings on BrowserRouter, HashRouter, and MemoryRouter.