Update react-router-dom 7.14.1 → 7.15.0 (minor)

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Here is everything you need to know about this upgrade. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ react-router-dom (7.14.1 → 7.15.0) · Repo · Changelog

Release Notes

7.15.0 (from changelog)

Date: 2026-05-05

What's Changed

Stabilizations

We've stabilized a bunch of APIs in this release in preparation for a React Router v8 release hopefully in the next month or two. These flag/prop renames are breaking changes if you've already opted into the unstable APIs so please make sure you make the appropriate changes if so.

• future.unstable_passThroughRequests → future.v8_passThroughRequests
• future.unstable_subResourceIntegrity → top-level config.subResourceIntegrity
• prerender.unstable_concurrency → prerender.concurrency
• unstable_url → url (loader, action, middleware, instrumentation args)
• unstable_instrumentations → instrumentations
  • Plus associated types (ServerInstrumentation, ClientInstrumentation, etc.)
• unstable_pattern → pattern (loader, action, middleware, instrumentation args)
• unstable_defaultShouldRevalidate → defaultShouldRevalidate
• unstable_useTransitions → useTransitions
• unstable_mask → mask (on <Link>, useLinkClickHandler, useNavigate, and Location)

Route matching optimizations

We've added a handful of route matching optimizations in this release for Framework and Data mode. The changes are mostly related to caching the internal flattened/ranked route branches and reducing additional calls to matchRoutes along the critical path. This should result in improved performance during both server-side request handling and client-side navigations.

Minor Changes

• react-router - Stabilize unstable_defaultShouldRevalidate as defaultShouldRevalidate on <Link>, <Form>, useLinkClickHandler, useSubmit, fetcher.submit, and setSearchParams (14999)
  • ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
• react-router - Stabilize the instrumentation APIs (14999)
  • unstable_instrumentations is now instrumentations
  • unstable_pattern is now pattern
  • The unstable_ServerInstrumentation, unstable_ClientInstrumentation, unstable_InstrumentRequestHandlerFunction, unstable_InstrumentRouterFunction, unstable_InstrumentRouteFunction, and unstable_InstrumentationHandlerResult types have had their unstable_ prefixes removed
  • ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
• react-router - Stabilize unstable_mask as mask on <Link>, useLinkClickHandler, and useNavigate, and rename the corresponding Location.unstable_mask field to Location.mask (14999)
  • ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
• react-router - Stabilize the unstable_normalizePath option on staticHandler.query and staticHandler.queryRoute as normalizePath (14999)
  • ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
• react-router - Stabilize future.unstable_passThroughRequests as future.v8_passThroughRequests (14999)
  • ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
• react-router - Remove unstable_subResourceIntegrity from the runtime FutureConfig type; the flag is now controlled by the top-level subResourceIntegrity option in react-router.config.ts (14999)
  • ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
• react-router - Stabilize unstable_url as url on loader, action, and middleware function args (14999)
  • ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
• react-router - Stabilize unstable_useTransitions as useTransitions on <BrowserRouter>, <HashRouter>, <HistoryRouter>, <MemoryRouter>, <Router>, <RouterProvider>, <HydratedRouter>, and useLinkClickHandler (14999)
  • ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
• @react-router/dev - Stabilize future.unstable_passThroughRequests as future.v8_passThroughRequests (14999)
  • ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
• @react-router/dev - Stabilize prerender.unstable_concurrency as prerender.concurrency (14999)
  • ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
• @react-router/dev - Stabilize future.unstable_subResourceIntegrity as a top-level subResourceIntegrity config option in react-router.config.ts (14999)
  • ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly

Patch Changes

• react-router - Add nonce to <Scripts> <link rel="modulepreload"> elements (if provided) (af5d49b)
• react-router - Fix a bug with unstable_defaultShouldRevalidate={false} where parent routes that did not export a shouldRevalidate function could be incorrectly included in the single fetch call for new child route data (#15012)
• react-router - Mark mask as an optional field in Location for easier mocking in unit tests (#14999)
• react-router - Improve server-side route matching performance by pre-computing flattened/cached route branches (#14967) (af5d49b)
  • Performance benchmarks showed roughly a 10-15% improvement in server-side request handling performance
• react-router - Cache flattened/ranked route branches to optimize server-side route matching (#14967)
• react-router - Improve route matching performance in Framework/Data Mode (#14971) (af5d49b)
  • Avoiding unnecessary calls to matchRoutes in data router scenarios
    • This includes adding back the optimization that was removed in 7.6.0 (#13562)
    • The issues that prompted the revert have been addressed by using the available router matches but always updating match.route to the latest route in the manifest
  • Leverage pre-computed pre-computing flattened/cached route branches during client side route matching
  • Performance benchmarks showed roughly a 15-30% improvement in server-side request handling performance

Full Changelog: v7.14.2...v7.15.0

7.14.2 (from changelog)

Date: 2026-04-21

Patch Changes

• react-router - Remove the un-documented custom error serialization logic from the internal turbo-stream implementation. React Router only automatically handles serialization of Error and it's standard subtypes (SyntaxError, TypeError, etc.). (#14992)

• react-router - Properly handle parent middleware redirects during fetcher.load (#14974)

• react-router - Remove redundant Omit<RouterProviderProps, "flushSync"> from react-router/dom RouterProvider (#14874)

• react-router - Improved types for generatePath's param arg (#14984)

  • Type errors when required params are omitted:

    // Before
    // Passes type checks, but throws at runtime 💥
    generatePath(":required", { required: null });

    // After
    generatePath(":required", { required: null });
    // ^^^^^^^^ Type 'null' is not assignable to type 'string'.ts(2322)

  • Allow omission of optional params:

    // Before
    generatePath(":optional?", {});
    // ^^ Property 'optional' is missing in type '{}' but required in type '{ optional: string | null | undefined; }'.ts(2741)

    // After
    generatePath(":optional?", {});

  • Allows extra keys:

    // Before
    generatePath(":a", { a: "1", b: "2" });
    // ^ Object literal may only specify known properties, and 'b' does not exist in type '{ a: string; }'.ts(2353)

    // After
    generatePath(":a", { a: "1", b: "2" });

• @react-router/dev - Fix typegen for layouts without pages (#14875)

  • Previously, typegen could produce pages: ; in .react-router/types/+routes.ts when a route corresponded to 0 pages
  • Now, pages: never; is correctly generated for those cases

Unstable Changes

⚠️ Unstable features are not recommended for production use

• @react-router/dev - For unstable_reactRouterRSC Vite plugin consumers, require @vitejs/plugin-react in user Vite config, and more reliably split route modules (#14965)
  • ⚠️ This is a breaking change if you have begun using the unstable_reactRouterRSC Vite plugin - please install @vitejs/plugin-react and add the react plugin to your Vite plugins array.

Full Changelog: v7.14.1...v7.14.2

Does any of this look wrong? Please let us know.

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