v6.11.0

What's Changed

Minor Changes

• Enable basename support in useFetcher (#10336)
  • If you were previously working around this issue by manually prepending the basename then you will need to remove the manually prepended basename from your fetcher calls (fetcher.load('/basename/route') -> fetcher.load('/route'))
• Updated dependencies:
  • @remix-run/[email protected] (Changelog)

Patch Changes

• When using a RouterProvider, useNavigate/useSubmit/fetcher.submit are now stable across location changes, since we can handle relative routing via the @remix-run/router instance and get rid of our dependence on useLocation() (#10336)
  • When using BrowserRouter, these hooks remain unstable across location changes because they still rely on useLocation()
• Fetchers should no longer revalidate on search params changes or routing to the same URL, and will only revalidate on action submissions or router.revalidate calls (#10344)
• Fix inadvertent re-renders when using Component instead of element on a route definition (#10287)
• Fail gracefully on <Link to="//"> and other invalid URL values (#10367)
• Switched from useSyncExternalStore to useState for internal @remix-run/router router state syncing in <RouterProvider>. We found some subtle bugs where router state updates got propagated before other normal useState updates, which could lead to foot guns in useEffect calls. (#10377, #10409)
• Log loader/action errors caught by the default error boundary to the console in dev for easier stack trace evaluation (#10286)
• Fix bug preventing rendering of descendant <Routes> when RouterProvider errors existed (#10374)
• Fix detection of useNavigate in the render cycle by setting the activeRef in a layout effect, allowing the navigate function to be passed to child components and called in a useEffect there (#10394)
• Allow useRevalidator() to resolve a loader-driven error boundary scenario (#10369)
• Enhance LoaderFunction/ActionFunction return type to prevent undefined from being a valid return value (#10267)
• Ensure proper 404 error on fetcher.load call to a route without a loader (#10345)
• Decouple AbortController usage between revalidating fetchers and the thing that triggered them such that the unmount/deletion of a revalidating fetcher doesn't impact the ongoing triggering navigation/revalidation (#10271)

Full Changelog: https://github.com/remix-run/react-router/compare/[email protected]@6.11.0

v6.10.0

What's Changed

We recently published a post over on the Remix Blog titled "Future Proofing Your Remix App" that goes through our strategy to ensure smooth upgrades for your Remix and React Router apps going forward. React Router 6.10.0 adds support for these flags (for data routers) which you can specify when you create your router:

const router = createBrowserRouter(routes, {
  future: {
    // specify future flags here
  },
});

You can also check out the docs here and here.

Minor Changes

• The first future flag being introduced is future.v7_normalizeFormMethod which will normalize the exposed useNavigation()/useFetcher() formMethod fields as uppercase HTTP methods to align with the fetch() (and some Remix) behavior. (#10207)

  • When future.v7_normalizeFormMethod is unspecified or set to false (default v6 behavior),
    • useNavigation().formMethod is lowercase
    • useFetcher().formMethod is lowercase
  • When future.v7_normalizeFormMethod === true:
    • useNavigation().formMethod is UPPERCASE
    • useFetcher().formMethod is UPPERCASE

Patch Changes

• Fix createStaticHandler to also check for ErrorBoundary on routes in addition to errorElement (#10190)
• Fix route ID generation when using Fragments in createRoutesFromElements (#10193)
• Provide fetcher submission to shouldRevalidate if the fetcher action redirects (#10208)
• Properly handle lazy() errors during router initialization (#10201)
• Remove instanceof check for DeferredData to be resilient to ESM/CJS boundaries in SSR bundling scenarios (#10247)
• Update to latest @remix-run/[email protected] (#10216)

Full Changelog: https://github.com/remix-run/react-router/compare/[email protected]@6.10.0

v6.9.0

What's Changed

Minor Changes

• React Router now supports an alternative way to define your route element and errorElement fields as React Components instead of React Elements. You can instead pass a React Component to the new Component and ErrorBoundary fields if you choose. There is no functional difference between the two, so use whichever approach you prefer 😀. You shouldn't be defining both, but if you do Component/ErrorBoundary will "win". (#10045)

  Example JSON Syntax

  // Both of these work the same:
  const elementRoutes = [{
    path: '/',
    element: <Home />,
    errorElement: <HomeError />,
  }]
  
  const componentRoutes = [{
    path: '/',
    Component: Home,
    ErrorBoundary: HomeError,
  }]
  
  function Home() { ... }
  function HomeError() { ... }

  Example JSX Syntax

  // Both of these work the same:
  const elementRoutes = createRoutesFromElements(
    <Route path='/' element={<Home />} errorElement={<HomeError /> } />
  );
  
  const componentRoutes = createRoutesFromElements(
    <Route path='/' Component={Home} ErrorBoundary={HomeError} />
  );
  
  function Home() { ... }
  function HomeError() { ... }

• Introducing Lazy Route Modules! (#10045)

  In order to keep your application bundles small and support code-splitting of your routes, we've introduced a new lazy() route property. This is an async function that resolves the non-route-matching portions of your route definition (loader, action, element/Component, errorElement/ErrorBoundary, shouldRevalidate, handle).

  Lazy routes are resolved on initial load and during the loading or submitting phase of a navigation or fetcher call. You cannot lazily define route-matching properties (path, index, children) since we only execute your lazy route functions after we've matched known routes.

  Your lazy functions will typically return the result of a dynamic import.

  // In this example, we assume most folks land on the homepage so we include that
  // in our critical-path bundle, but then we lazily load modules for /a and /b so
  // they don't load until the user navigates to those routes
  let routes = createRoutesFromElements(
    <Route path="/" element={<Layout />}>
      <Route index element={<Home />} />
      <Route path="a" lazy={() => import("./a")} />
      <Route path="b" lazy={() => import("./b")} />
    </Route>
  );

  Then in your lazy route modules, export the properties you want defined for the route:

  export async function loader({ request }) {
    let data = await fetchData(request);
    return json(data);
  }
  
  // Export a `Component` directly instead of needing to create a React Element from it
  export function Component() {
    let data = useLoaderData();
  
    return (
      <>
        <h1>You made it!</h1>
        <p>{data}</p>
      </>
    );
  }
  
  // Export an `ErrorBoundary` directly instead of needing to create a React Element from it
  export function ErrorBoundary() {
    let error = useRouteError();
    return isRouteErrorResponse(error) ? (
      <h1>
        {error.status} {error.statusText}
      </h1>
    ) : (
      <h1>{error.message || error}</h1>
    );
  }

  An example of this in action can be found in the examples/lazy-loading-router-provider directory of the repository. For more info, check out the lazy docs.

  🙌 Huge thanks to @rossipedia for the Initial Proposal and POC Implementation.

Patch Changes

• Improve memoization for context providers to avoid unnecessary re-renders (#9983)
• Fix generatePath incorrectly applying parameters in some cases (#10078)
• [react-router-dom-v5-compat] Add missed data router API re-exports (#10171)

Full Changelog: https://github.com/remix-run/react-router/compare/[email protected]@6.9.0

v6.8.2

What's Changed

• Treat same-origin absolute URLs in <Link to> as external if they are outside of the router basename (#10135)
• Correctly perform a hard redirect for same-origin absolute URLs outside of the router basename (#10076)
• Fix SSR of absolute <Link to> urls (#10112)
• Properly escape HTML characters in StaticRouterProvider serialized hydration data (#10068)
• Fix useBlocker to return IDLE_BLOCKER during SSR (#10046)
• Ensure status code and headers are maintained for defer loader responses in createStaticHandler's query() method (#10077)
• Change invariant to an UNSAFE_invariant export since it's only intended for internal use (#10066)

Full Changelog: https://github.com/remix-run/react-router/compare/[email protected]@6.8.2

v6.8.1

What's Changed

• Remove inaccurate console warning for POP navigations and update active blocker logic (#10030)
• Only check for differing origin on absolute URL redirects (#10033)
• Improved absolute url detection in Link component (now also supports mailto: urls) (#9994)
• Fix partial object (search or hash only) pathnames losing current path value (#10029)

Full Changelog: https://github.com/remix-run/react-router/compare/[email protected]@6.8.1

v6.8.0

What's Changed

Minor Changes

Support absolute URLs in <Link to>. If the URL is for the current origin, it will still do a client-side navigation. If the URL is for a different origin then it will do a fresh document request for the new origin. (#9900)

<Link to="https://neworigin.com/some/path">    {/* Document request */}
<Link to="//neworigin.com/some/path">          {/* Document request */}
<Link to="https://www.currentorigin.com/path"> {/* Client-side navigation */}

Patch Changes

• Fixes 2 separate issues for revalidating fetcher shouldRevalidate calls (#9948)
  • The shouldRevalidate function was only being called for explicit revalidation scenarios (after a mutation, manual useRevalidator call, or an X-Remix-Revalidate header used for cookie setting in Remix). It was not properly being called on implicit revalidation scenarios that also apply to navigation loader revalidation, such as a change in search params or clicking a link for the page we're already on. It's now correctly called in those additional scenarios.
  • The parameters being passed were incorrect and inconsistent with one another since the current*/next* parameters reflected the static fetcher.load URL (and thus were identical). Instead, they should have reflected the the navigation that triggered the revalidation (as the form* parameters did). These parameters now correctly reflect the triggering navigation.
• Fix bug with search params removal via useSearchParams (#9969)
• Respect preventScrollReset on <fetcher.Form> (#9963)
• Fix navigation for hash routers on manual URL changes (#9980)
• Use pagehide instead of beforeunload for <ScrollRestoration>. This has better cross-browser support, specifically on Mobile Safari. (#9945)
• Do not short circuit on hash change only mutation submissions (#9944)
• Remove instanceof check from isRouteErrorResponse to avoid bundling issues on the server (#9930)
• Detect when a defer call only contains critical data and remove the AbortController (#9965)
• Send the name as the value when url-encoding File FormData entries (#9867)
• react-router-dom-v5-compat - Fix SSR useLayoutEffect console.error when using CompatRouter (#9820)

New Contributors

• @fyzhu made their first contribution in #9874
• @cassidoo made their first contribution in #9889
• @machour made their first contribution in #9893
• @jdufresne made their first contribution in #9916
• @LordThi made their first contribution in #9953
• @bbrowning918 made their first contribution in #9954

---

Full Changelog: v6.7.0...v6.8.0

v6.7.0

What's Changed

Minor Changes

• Add unstable_useBlocker/unstable_usePrompt hooks for blocking navigations within the app's location origin (#9709, #9932)
• Add preventScrollReset prop to <Form> (#9886)

Patch Changes

• Added pass-through event listener options argument to useBeforeUnload (#9709)
• Fix generatePath when optional params are present (#9764)
• Update <Await> to accept ReactNode as children function return result (#9896)
• Improved absolute redirect url detection in actions/loaders (#9829)
• Fix URL creation with memory histories (#9814)
• Fix scroll reset if a submission redirects (#9886)
• Fix 404 bug with same-origin absolute redirects (#9913)
• Streamline jsdom bug workaround in tests (#9824)

New Contributors

• @damianstasik made their first contribution in #9835
• @akamfoad made their first contribution in #9877
• @lkwr made their first contribution in #9829

---

Full Changelog: v6.6.2...v6.7.0

v6.6.2

What's Changed

• Ensure useId consistency during SSR (#9805)

Full Changelog: https://github.com/remix-run/react-router/compare/[email protected]@6.6.2

v6.6.1

What's Changed

• Include submission info in shouldRevalidate on action redirects (#9777, #9782)
• Reset actionData on action redirect to current location (#9772)

Full Changelog: https://github.com/remix-run/react-router/compare/[email protected]@6.6.1

v6.6.0

What's Changed

This minor release is primarily to stabilize our SSR APIs for Data Routers now that we've wired up the new RouterProvider in Remix as part of the React Router-ing Remix work.

Minor Changes

• Remove unstable_ prefix from createStaticHandler/createStaticRouter/StaticRouterProvider (#9738)
• Add useBeforeUnload() hook (#9664)

Patch Changes

• Support uppercase <Form method> and useSubmit method values (#9664)
• Fix <button formmethod> form submission overriddes (#9664)
• Fix explicit replace on submissions and PUSH on submission to new paths (#9734)
• Prevent useLoaderData usage in errorElement (#9735)
• Proper hydration of Error objects from StaticRouterProvider (#9664)
• Skip initial scroll restoration for SSR apps with hydrationData (#9664)
• Fix a few bugs where loader/action data wasn't properly cleared on errors (#9735)

Full Changelog: https://github.com/remix-run/react-router/compare/[email protected]@6.6.0