react-router)@react-router/*)This page lists all releases/release notes for React Router back to v6.0.0. For releases prior to v6, please refer to the Github Releases Page.
We manage release notes in this file instead of the paginated Github Releases Page for 2 reasons:
v6.28.0...v7.0.0
Date: 2024-11-21
react-router-dom, @remix-run/react, @remix-run/server-runtime, and @remix-run/router have been collapsed into the react-router package
react-router-dom is still published in v7 as a re-export of everything from react-router@remix-run/cloudflare-pages and @remix-run/cloudflare-workers have been collapsed into @react-router/cloudflare package`react-router-dom-v5-compat and react-router-native packages are removed starting with v7Remix v2 used to re-export all common @remix-run/server-runtime APIs through the various runtime packages (node, cloudflare, deno) so that you wouldn't need an additional @remix-run/server-runtime dependency in your package.json. With the collapsing of packages into react-router, these common APIs are now no longer re-exported through the runtime adapters. You should import all common APIs from react-router, and only import runtime-specific APIs from the runtime packages:
// Runtime-specific APIs
import { createFileSessionStorage } from "@react-router/node";
// Runtime-agnostic APIs
import { redirect, useLoaderData } from "react-router";
The following APIs have been removed in React Router v7:
jsondeferunstable_composeUploadHandlersunstable_createMemoryUploadHandlerunstable_parseMultipartFormDataReact Router v7 requires the following minimum versions:
node@20
installGlobals method to polyfill the fetch APIreact@18, react-dom@18Remix and React Router follow an API Development Strategy leveraging "Future Flags" to avoid introducing a slew of breaking changes in a major release. Instead, breaking changes are introduce din minor releases behind a flag, allowing users to opt-in at their convenience. In the next major release, all future flag behaviors become the default behavior.
The following previously flagged behaviors are now the default in React Router v7:
future.v7_relativeSplatPathfuture.v7_startTransitionfuture.v7_fetcherPersistfuture.v7_normalizeFormMethodfuture.v7_partialHydrationfuture.v7_skipActionStatusRevalidationfuture.v3_fetcherPersistfuture.v3_relativeSplatPathfuture.v3_throwAbortReasonfuture.v3_singleFetchfuture.v3_lazyRouteDiscoveryfuture.v3_optimizeDepsThe Remix Vite plugin is the proper way to build full-stack SSR apps using React Router v7. The former esbuild-based compiler is no longer available.
Renamed vitePlugin and cloudflareDevProxyVitePlugin
For Remix consumers migrating to React Router, the vitePlugin and cloudflareDevProxyVitePlugin exports have been renamed and moved (#11904)
-import {
- vitePlugin as remix,
- cloudflareDevProxyVitePlugin,
-} from "@remix/dev";
+import { reactRouter } from "@react-router/dev/vite";
+import { cloudflareDevProxy } from "@react-router/dev/vite/cloudflare";
Removed Vite Plugin manifest option
For Remix consumers migrating to React Router, the Vite plugin's manifest option has been removed. The manifest option been superseded by the more powerful buildEnd hook since it's passed the buildManifest argument. You can still write the build manifest to disk if needed, but you'll most likely find it more convenient to write any logic depending on the build manifest within the buildEnd hook itself. (#11573)
If you were using the manifest option, you can replace it with a buildEnd hook that writes the manifest to disk like this:
import { reactRouter } from "@react-router/dev/vite";
import { writeFile } from "node:fs/promises";
export default {
plugins: [
reactRouter({
async buildEnd({ buildManifest }) {
await writeFile(
"build/manifest.json",
JSON.stringify(buildManifest, null, 2),
"utf-8"
);
},
}),
],
};
Because React 19 will have first-class support for handling promises in the render pass (via React.use and useAction), we are now comfortable exposing the promises for the APIs that previously returned undefined:
useNavigate()useSubmit()useFetcher().loaduseFetcher().submituseRevalidator().revalidate()routes.tsWhen using the React Router Vite plugin, routes are defined in app/routes.ts. Route config is exported via the routes export, conforming to the RouteConfig type. Route helper functions route, index, and layout are provided to make declarative type-safe route definitions easier.
// app/routes.ts
import {
type RouteConfig,
route,
index,
layout,
} from "@react-router/dev/routes";
export const routes: RouteConfig = [
index("./home.tsx"),
route("about", "./about.tsx"),
layout("./auth/layout.tsx", [
route("login", "./auth/login.tsx"),
route("register", "./auth/register.tsx"),
]),
route("concerts", [
index("./concerts/home.tsx"),
route(":city", "./concerts/city.tsx"),
route("trending", "./concerts/trending.tsx"),
]),
];
For Remix consumers migrating to React Router, you can still configure file system routing within routes.ts using the @react-router/fs-routes package. A minimal route config that reproduces the default Remix setup looks like this:
// app/routes.ts
import { type RouteConfig } from "@react-router/dev/routes";
import { flatRoutes } from "@react-router/fs-routes";
export const routes: RouteConfig = flatRoutes();
If you want to migrate from file system routing to config-based routes, you can mix and match approaches by spreading the results of the async flatRoutes function into the array of config-based routes.
// app/routes.ts
import { type RouteConfig, route } from "@react-router/dev/routes";
import { flatRoutes } from "@react-router/fs-routes";
export const routes: RouteConfig = [
// Example config-based route:
route("/hello", "./routes/hello.tsx"),
// File system routes scoped to a different directory:
...(await flatRoutes({
rootDirectory: "fs-routes",
})),
];
If you were using Remix's routes option to use alternative file system routing conventions, you can adapt these to the new RouteConfig format using @react-router/remix-config-routes-adapter.
For example, if you were using Remix v1 route conventions in Remix v2, you can combine @react-router/remix-config-routes-adapter with @remix-run/v1-route-convention to adapt this to React Router:
// app/routes.ts
import { type RouteConfig } from "@react-router/dev/routes";
import { remixConfigRoutes } from "@react-router/remix-config-routes-adapter";
import { createRoutesFromFolders } from "@remix-run/v1-route-convention";
export const routes: RouteConfig = remixConfigRoutes(async (defineRoutes) => {
return createRoutesFromFolders(defineRoutes, {
ignoredFilePatterns: ["**/.*", "**/*.css"],
});
});
Also note that, if you were using Remix's routes option to define config-based routes, you can also adapt these to the new RouteConfig format using @react-router/remix-config-routes-adapter with minimal code changes. While this makes for a fast migration path, we recommend migrating any config-based routes from Remix to the new RouteConfig format since it's a fairly straightforward migration.
// app/routes.ts
-import { type RouteConfig } from "@react-router/dev/routes";
+import { type RouteConfig, route } from "@react-router/dev/routes";
-import { remixConfigRoutes } from "@react-router/remix-config-routes-adapter";
-export const routes: RouteConfig = remixConfigRoutes(async (defineRoutes) => {
- defineRoutes((route) => {
- route("/parent", "./routes/parent.tsx", () => [
- route("/child", "./routes/child.tsx"),
- ]);
- });
-});
+export const routes: RouteConfig = [
+ route("/parent", "./routes/parent.tsx", [
+ route("/child", "./routes/child.tsx"),
+ ]),
+];
React Router now generates types for each of your route modules and passes typed props to route module component exports (#11961, #12019). You can access those types by importing them from ./+types.<route filename without extension>.
For example:
// app/routes/product.tsx
import type * as Route from "./+types.product";
export function loader({ params }: Route.LoaderArgs) {}
export default function Component({ loaderData }: Route.ComponentProps) {}
This initial implementation targets type inference for:
Params : Path parameters from your routing config in routes.ts including file-based routingLoaderData : Loader data from loader and/or clientLoader within your route moduleActionData : Action data from action and/or clientAction within your route moduleThese types are then used to create types for route export args and props:
LoaderArgsClientLoaderArgsActionArgsClientActionArgsHydrateFallbackPropsComponentProps (for the default export)ErrorBoundaryPropsIn the future, we plan to add types for the rest of the route module exports: meta, links, headers, shouldRevalidate, etc.
We also plan to generate types for typesafe Links:
<Link to="/products/:id" params={{ id: 1 }} />
// ^^^^^^^^^^^^^ ^^^^^^^^^
// typesafe `to` and `params` based on the available routes in your app
React Router will generate types into a .react-router/ directory at the root of your app. This directory is fully managed by React Router and is derived based on your route config (routes.ts).
👉 Add .react-router/ to .gitignore
.react-router
You should also ensure that generated types for routes are always present before running typechecking, especially for running typechecking in CI.
👉 Add react-router typegen to your typecheck command in package.json
{
"scripts": {
"typecheck": "react-router typegen && tsc"
}
}
To get TypeScript to use those generated types, you'll need to add them to include in tsconfig.json. And to be able to import them as if they files next to your route modules, you'll also need to configure rootDirs.
👉 Configure tsconfig.json for generated types
{
"include": [".react-router/types/**/*"],
"compilerOptions": {
"rootDirs": [".", "./.react-router/types"]
}
}
typegen commandYou can manually generate types with the new typegen command:
react-router typegen
However, manual type generation is tedious and types can get out of sync quickly if you ever forget to run typegen. Instead, we recommend that you setup our new TypeScript plugin which will automatically generate fresh types whenever routes change. That way, you'll always have up-to-date types.
To get automatic type generation, you can use our new TypeScript plugin.
👉 Add the TypeScript plugin to tsconfig.json
{
"compilerOptions": {
"plugins": [{ "name": "@react-router/dev" }]
}
}
We plan to add some other goodies to our TypeScript plugin soon, including:
jsdoc for route exports that include links to official docsTypeScript looks for plugins registered in tsconfig.json in the local node_modules/,
but VSCode ships with its own copy of TypeScript that is installed outside of your project.
For TypeScript plugins to work, you'll need to tell VSCode to use the local workspace version of TypeScript.
👉 Ensure that VSCode is using the workspace version of TypeScript
This should already be set up for you by a .vscode/settings.json:
{
"typescript.tsdk": "node_modules/typescript/lib"
}
Alternatively, you can open up any TypeScript file and use CMD+SHIFT+P to find Select TypeScript Version and then select Use Workspace Version. You may need to quit VSCode and reopen it for this setting to take effect.
In VSCode, open up any TypeScript file in your project and then use CMD+SHIFT+P to select Open TS Server log. There should be a log for [react-router] setup that indicates that the plugin was resolved correctly. Then look for any errors in the log.
React Router v7 includes a new prerender config in the vite plugin to support SSG use-cases. This will pre-render your .html and .data files at build time and so you can serve them statically at runtime from a running server or a CDN (#11539)
export default defineConfig({
plugins: [
reactRouter({
async prerender({ getStaticPaths }) {
let slugs = await fakeGetSlugsFromCms();
return [
...getStaticPaths(),
...slugs.map((slug) => `/product/${slug}`),
];
},
}),
tsconfigPaths(),
],
});
async function fakeGetSlugsFromCms() {
await new Promise((r) => setTimeout(r, 1000));
return ["shirt", "hat"];
}
react-router)defer implementation in favor of using raw promises via single fetch and turbo-stream (#11744)
deferAbortedDeferredErrortype TypedDeferredDataUNSAFE_DeferredDataUNSAFE_DEFERRED_SYMBOLreact-router(#11505)
@remix-run/routerreact-router-dom@remix-run/server-runtime@remix-run/testingreact-router-dom package is maintained to ease adoption but it simply re-exports all APIs from react-routerfuture.v7_startTransition flag (#11696)future.v7_normalizeFormMethod future flag (#11697)@remix-run/router
AgnosticDataIndexRouteObjectAgnosticDataNonIndexRouteObjectAgnosticDataRouteMatchAgnosticDataRouteObjectAgnosticIndexRouteObjectAgnosticNonIndexRouteObjectAgnosticRouteMatchAgnosticRouteObjectTrackedPromiseunstable_AgnosticPatchRoutesOnMissFunctionAction -> exported as NavigationType via react-routerRouter exported as RemixRouter to differentiate from RR's <Router>getToPathname (@private)joinPaths (@private)normalizePathname (@private)resolveTo (@private)stripBasename (@private)createBrowserHistory -> in favor of createBrowserRoutercreateHashHistory -> in favor of createHashRoutercreateMemoryHistory -> in favor of createMemoryRoutercreateRoutercreateStaticHandler -> in favor of wrapper createStaticHandler in RR DomgetStaticContextFromErrorreact-router
HashPathnameSearchfuture.v7_prependBasename from the internalized @remix-run/router package (#11726)future.v7_throwAbortReason from internalized @remix-run/router package (#11728)exports field to all packages (#11675)RemixContext to FrameworkContext (#11705)PrefetchPageDescriptor replaced by PageLinkDescriptor (#11960)future.v7_partialHydration flag (#11725)
<RouterProvider fallbackElement> prop
fallbackElement to a hydrateFallbackElement/HydrateFallback on your root routefuture.v7_partialHydration (when using fallbackElement), state.navigation was populated during the initial loadfuture.v7_partialHydration, state.navigation remains in an "idle" state during the initial loadfuture.v7_relativeSplatPath future flag (#11695)v7_skipActionErrorRevalidationv3_fetcherPersist, v3_relativeSplatPath, v3_throwAbortReasoncreateRemixStub to createRoutesStub (#11692)@remix-run/router deprecated detectErrorBoundary option in favor of mapRouteProperties (#11751)react-router/dom subpath export to properly enable react-dom as an optional peerDependency (#11851)
import ReactDOM from "react-dom" in <RouterProvider> in order to access ReactDOM.flushSync(), since that would break createMemoryRouter use cases in non-DOM environmentsreact-router/dom to get the proper component that makes ReactDOM.flushSync() available:
entry.client.tsx:
import { HydratedRouter } from 'react-router/dom'createBrowserRouter/createHashRouter:
import { RouterProvider } from "react-router/dom"future.v7_fetcherPersist flag (#11731)undefined from loaders and actions (#11680, #12057)createRemixRouter/RouterProvider in entry.client instead of RemixBrowser (#11469)json utility (#12146)
Response.json if you still need to construct JSON responses in your app@react-router/*)future.v3_singleFetch flag (#11522)installGlobals() as this should no longer be necessaryexports field to all packages (#11675)react-router through different runtime/adapter packages (#11702)crypto global from the Web Crypto API is now required when using cookie and session APIs
react-router rather than platform-specific packages: (#11837)
createCookiecreateCookieSessionStoragecreateMemorySessionStoragecreateSessionStorageinstallGlobals function from @remix-run/node has been updated to define globalThis.crypto, using Node's require('node:crypto').webcrypto implementationcreateCookieFactorycreateSessionStorageFactorycreateCookieSessionStorageFactorycreateMemorySessionStorageFactory@remix-run/router, @remix-run/server-runtime, and @remix-run/react now that they all live in react-router (#12177)
LoaderFunction, LoaderFunctionArgs, ActionFunction, ActionFunctionArgs, DataFunctionArgs, RouteManifest, LinksFunction, Route, EntryRouteRouteManifest type used by the "remix" code is now slightly stricter because it is using the former @remix-run/router RouteManifest
Record<string, Route> -> Record<string, Route | undefined>AppData type in favor of inlining unknown in the few locations it was usedServerRuntimeMeta* types in favor of the Meta* types they were duplicated fromRoute.* typesRoute.* typesuseFetcher previously had an optional generic (used primarily by Remix v2) that expected the data typetypeof loader/typeof action)useFetcher<LoaderData>()useFetcher<typeof loader>()cookie dependency to ^1.0.1 - please see the release notes for any breaking changes (#12172)@react-router/cloudflare - For Remix consumers migrating to React Router, all exports from @remix-run/cloudflare-pages are now provided for React Router consumers in the @react-router/cloudflare package. There is no longer a separate package for Cloudflare Pages. (#11801)@react-router/cloudflare - The @remix-run/cloudflare-workers package has been deprecated. Remix consumers migrating to React Router should use the @react-router/cloudflare package directly. For guidance on how to use @react-router/cloudflare within a Cloudflare Workers context, refer to the Cloudflare Workers template. (#11801)@react-router/dev - For Remix consumers migrating to React Router, the vitePlugin and cloudflareDevProxyVitePlugin exports have been renamed and moved. (#11904)@react-router/dev - For Remix consumers migrating to React Router who used the Vite plugin's buildEnd hook, the resolved reactRouterConfig object no longer contains a publicPath property since this belongs to Vite, not React Router (#11575)@react-router/dev - For Remix consumers migrating to React Router, the Vite plugin's manifest option has been removed (#11573)@react-router/dev - Update default isbot version to v5 and drop support for isbot@3 (#11770)
isbot@4 or isbot@5 in your package.json:
isbot@3 in your package.json and you have your own entry.server.tsx file in your repo
isbot@5 independent of the React Router v7 upgradeisbot@3 in your package.json and you do not have your own entry.server.tsx file in your repo
isbot@5 in your package.json@react-router/dev - For Remix consumers migrating to React Router, Vite manifests (i.e. .vite/manifest.json) are now written within each build subdirectory, e.g. build/client/.vite/manifest.json and build/server/.vite/manifest.json instead of build/.vite/client-manifest.json and build/.vite/server-manifest.json. This means that the build output is now much closer to what you'd expect from a typical Vite project. (#11573)
build/.vite directory to avoid accidentally serving them in production, particularly from the client build. This was later improved with additional logic that deleted these Vite manifest files at the end of the build process unless Vite's build.manifest had been enabled within the app's Vite config. This greatly reduced the risk of accidentally serving the Vite manifests in production since they're only present when explicitly asked for. As a result, we can now assume that consumers will know that they need to manage these additional files themselves, and React Router can safely generate a more standard Vite build output.react-router - Params, loader data, and action data as props for route component exports (#11961)react-router - Add route module type generation (#12019)react-router - Remove duplicate RouterProvider implementations (#11679)react-router - Stabilize unstable_dataStrategy (#11969)react-router - Stabilize unstable_patchRoutesOnNavigation (#11970)react-router - Add prefetching support to Link/NavLink when using Remix SSR (#11402)react-router - Enhance ScrollRestoration so it can restore properly on an SSR'd document load (#11401)@react-router/dev - Add support for the prerender config in the React Router vite plugin, to support existing SSG use-cases (#11539)@react-router/dev - Remove internal entry.server.spa.tsx implementation which was not compatible with the Single Fetch async hydration approach (#11681)@react-router/serve: Update express.static configurations to support new prerender API (#11547)
build/client/assets folder are served as before, with a 1-year immutable Cache-Control header.html and .data files are not served with a specific Cache-Control header.data files are served with Content-Type: text/x-turbo
express.static, it seems to also add a Cache-Control: public, max-age=0 to .data filessubstr with substring (#12080)react-router - Fix redirects returned from loaders/actions using data() (#12021)@react-router/dev - Enable prerendering for resource routes (#12200)@react-router/dev - resolve config directory relative to flat output file structure (#12187)react-router@react-router/architect@react-router/cloudflare@react-router/dev@react-router/express@react-router/fs-routes@react-router/node@react-router/remix-config-routes-adapter@react-router/servev6.28.0...v7.0.0release-next
Date: 2024-11-06
json/defer in favor of returning raw objects
Full Changelog: v6.27.0...v6.28.0
dev
release-next
Date: 2024-10-11
This release stabilizes a handful of "unstable" APIs in preparation for the pending React Router v7 release (see these posts for more info):
unstable_dataStrategy → dataStrategy (createBrowserRouter and friends) (Docs)unstable_patchRoutesOnNavigation → patchRoutesOnNavigation (createBrowserRouter and friends) (Docs)unstable_flushSync → flushSync (useSubmit, fetcher.load, fetcher.submit) (Docs)unstable_viewTransition → viewTransition (<Link>, <Form>, useNavigate, useSubmit) (Docs)unstable_flushSync option for navigations and fetchers (#11989)unstable_viewTransition option for navigations and the corresponding unstable_useViewTransitionState hook (#11989)unstable_dataStrategy (#11974)unstable_patchRoutesOnNavigation (#11973)
PatchRoutesOnNavigationFunctionArgs type for convenience (#11967)?index param already exists from a prior submission (#12003)useFormAction bug - when removing ?index param it would not keep other non-Remix index params (#12003)preventScrollReset through redirects during concurrent fetches (#11999)console.error on fetcher abort due to back-to-back revalidation calls (#12050)partialHydration when hydrating with errors (#12070)patchRoutesOnNavigation calls (#12055)
unstable_ APIpatchRoutesOnNavigation internally so that multiple navigations with the same start/end would only execute the function once and use the same promisepatch short circuiting if a navigation was interrupted (and the request.signal aborted) since the first invocation's patch would no-opimport() for async routes will already be cached automatically - and if not it's easy enough for users to implement this cache in userlanddiscoveredRoutes FIFO queue from unstable_patchRoutesOnNavigation (#11977)
unstable_ APIpatchRoutesOnNavigationRouteObject within PatchRoutesOnNavigationFunction's patch method so it doesn't expect agnostic route objects passed to patch (#11967)patchRoutesOnNavigation directly to useRouteError instead of wrapping them in a 400 ErrorResponse instance (#12111)Full Changelog: v6.26.2...v6.27.0
Date: 2024-09-09
unstable_dataStrategy API to allow for more advanced implementations (#11943)
unstable_dataStrategy, please review carefully as this includes breaking changes to this APIunstable_HandlerResult to unstable_DataStrategyResultunstable_dataStrategy from a parallel array of unstable_DataStrategyResult[] (parallel to matches) to a key/value object of routeId => unstable_DataStrategyResult
match.shouldLoad)handlerOverride instead of returning a DataStrategyResult
handlerOverride will be wrapped up into a DataStrategyResult and returned fromm match.resolvematch.resolve() into a final results object you should not need to think about the DataStrategyResult typehandlerOverride, then you will need to assign a DataStrategyResult as the value so React Router knows if it's a successful execution or an error (see examples in the documentation for details)fetcherKey parameter to unstable_dataStrategy to allow differentiation from navigational and fetcher callsblocker.proceed is called quickly/synchronously (#11930)Full Changelog: v6.26.1...v6.26.2
Date: 2024-08-15
unstable_patchRoutesOnMiss to unstable_patchRoutesOnNavigation to match new behavior (#11888)unstable_patchRoutesOnNavigation logic so that we call the method when we match routes with dynamic param or splat segments in case there exists a higher-scoring static route that we've not yet discovered (#11883)
unstable_patchRoutesOnNavigation against so that we don't re-call on subsequent navigations to the same pathFull Changelog: v6.26.0...v6.26.1
Date: 2024-08-01
replace(url, init?) alternative to redirect(url, init?) that performs a history.replaceState instead of a history.pushState on client-side navigation redirects (#11811)unstable_data() API for usage with Remix Single Fetch (#11836)
createStaticHandler.query() to allow loaders/actions to return arbitrary data along with custom status/headers without forcing the serialization of data into a Response instanceunstable_dataStrategy such as serializing via turbo-stream in Remix Single Fetchstatus field from HandlerResult
status from unstable_dataStrategy you should instead do so via unstable_data()future.v7_partialHydration along with unstable_patchRoutesOnMiss (#11838)
router.state.matches will now include any partial matches so that we can render ancestor HydrateFallback componentsFull Changelog: v6.25.1...v6.26.0
Date: 2024-07-17
RouterProvider internals to reduce unnecessary re-renders (#11803)Full Changelog: v6.25.0...v6.25.1
Date: 2024-07-16
v7_skipActionErrorRevalidationThis release stabilizes the future.unstable_skipActionErrorRevalidation flag into future.v7_skipActionErrorRevalidation in preparation for the upcoming React Router v7 release.
4xx/5xx Response will not trigger a revalidation by defaultshouldRevalidate's unstable_actionStatus parameter to actionStatusfuture.unstable_skipActionErrorRevalidation as future.v7_skipActionErrorRevalidation (#11769)useMatch so matches/params reflect decoded params (#11789)unstable_patchRoutesOnMiss (#11786)unstable_patchRoutesOnMiss that matched a splat route on the server (#11790)Full Changelog: v6.24.1...v6.25.0
Date: 2024-07-03
polyfill.io reference from warning message because the domain was sold and has since been determined to serve malware (#11741)
NavLinkRenderProps type for easier typing of custom NavLink callback (#11553)future.v7_relativeSplatPath, properly resolve relative paths in splat routes that are children of pathless routes (#11633)router.routes identity/reflow during route patching (#11740)Full Changelog: v6.24.0...v6.24.1
Date: 2024-06-24
We're really excited to release our new API for "Lazy Route Discovery" in v6.24.0! For some background information, please check out the original RFC. The tl;dr; is that ever since we introduced the Data APIs in v6.4 via <RouterProvider>, we've been a little bummed that one of the tradeoffs was the lack of a compelling code-splitting story mirroring what we had in the <BrowserRouter>/<Routes> apps. We took a baby-step towards improving that story with route.lazy in v6.9.0, but with v6.24.0 we've gone the rest of the way.
With "Fog of War", you can now load portions of the route tree lazily via the new unstable_patchRoutesOnMiss option passed to createBrowserRouter (and it's memory/hash counterparts). This gives you a way to hook into spots where React Router is unable to match a given path and patch new routes into the route tree during the navigation (or fetcher call).
Here's a very small example, but please refer to the documentation for more information and use cases:
const router = createBrowserRouter(
[
{
id: "root",
path: "/",
Component: RootComponent,
},
],
{
async unstable_patchRoutesOnMiss({ path, patch }) {
if (path === "/a") {
// Load the `a` route (`{ path: 'a', Component: A }`)
let route = await getARoute();
// Patch the `a` route in as a new child of the `root` route
patch("root", [route]);
}
},
}
);
fetcher.submit types - remove incorrect navigate/fetcherKey/unstable_viewTransition options because they are only relevant for useSubmit (#11631)location.state values passed to <StaticRouter> (#11495)Full Changelog: v6.23.1...v6.24.0
Date: 2024-05-10
undefined to be resolved through <Await> (#11513)document check when checking for document.startViewTransition availability (#11544)react-router-dom/server import back to react-router-dom instead of index.ts (#11514)@remix-run/router - Support unstable_dataStrategy on staticHandler.queryRoute (#11515)Full Changelog: v6.23.0...v6.23.1
Date: 2024-04-23
The new unstable_dataStrategy API is a low-level API designed for advanced use-cases where you need to take control over the data strategy for your loader/action functions. The default implementation is today's behavior, to fetch all loaders in parallel, but this option allows users to implement more advanced data flows including Remix "Single Fetch", user-land middleware/context APIs, automatic loader caching, and more. Please see the docs for more information.
Note: This is a low-level API intended for advanced use-cases. This overrides React Router's internal handling of loader/action execution, and if done incorrectly will break your app code. Please use with caution and perform the appropriate testing.
Currently, all active loader's revalidate after any action submission, regardless of the action result. However, in the majority of cases a 4xx/5xx response from an action means that no data was actually changed and the revalidation is unnecessary. We've introduced a new future.unstable_skipActionErrorRevalidation flag that changes the behavior here, and we plan to make this the default in future version of React Router.
With this flag enabled, action's that return/throw a 4xx/5xx response status will no longer automatically revalidate. If you need to revalidate after a 4xx/5xx result with this flag enabled, you can still do that via returning true from shouldRevalidate - which now also receives a new unstable_actionStatus argument alongside actionResult so you can make decision based on the status of the action response without having to encode it into the action data.
unstable_dataStrategy configuration option (#11098, #11377)@remix-run/router - Add a new future.unstable_skipActionRevalidation future flag (#11098)@remix-run/router - SSR: Added a new skipLoaderErrorBubbling options to the staticHandler.query method to disable error bubbling by the static handler for use in Remix's Single Fetch implementation (#11098, (#11377))Full Changelog: v6.22.3...v6.23.0
Date: 2024-03-07
future.v7_partialHydration bug that would re-run loaders below the boundary on hydration if SSR loader errors bubbled to a parent boundary (#11324)future.v7_partialHydration bug that would consider the router uninitialized if a route did not have a loader (#11325)Full Changelog: v6.22.2...v6.22.3
Date: 2024-02-28
Full Changelog: v6.22.1...v6.22.2
Date: 2024-02-16
Full Changelog: v6.22.0...v6.22.1
Date: 2024-02-01
In 2021, the HTTP Archive launched the Core Web Vitals Technology Report dashboard:
By combining the powers of real-user experiences in the Chrome UX Report 26 (CrUX) dataset with web technology detections in HTTP Archive 30, we can get a glimpse into how architectural decisions like choices of CMS platform or JavaScript framework play a role in sites’ CWV performance.
They use a tool called wappalyzer to identify what technologies a given website is using by looking for certain scripts, global JS variables, or other identifying characteristics. For example, for Remix applications, they look for the global __remixContext variable to identify that a website is using Remix.
It was brought to our attention that React Router was unable to be reliably identified because there are no identifying global aspects. They are currently looking for external scripts with react-router in the name. This will identify sites using React Router from a CDN such as unpkg - but it will miss the vast majority of sites that are installing React Router from the npm registry and bundling it into their JS files. This results in drastically under-reporting the usage of React Router on the web.
Starting with version 6.22.0, sites using react-router-dom will begin adding a window.__reactRouterVersion variable that will be set to a string value of the SemVer major version number (i.e., window.__reactRouterVersion = "6";) so that they can be properly identified.
window.__reactRouterVersion for CWV Report detection (#11222)createStaticHandler future.v7_throwAbortReason flag to throw request.signal.reason (defaults to a DOMException) when a request is aborted instead of an Error such as new Error("query() call aborted: GET /path") (#11104)
DOMException was added in Node v17 so you will not get a DOMException on Node 16 and below.ErrorResponse status code if passed to getStaticContextFormError (#11213)Full Changelog: v6.21.3...v6.22.0
Date: 2024-01-18
NavLink isPending when a basename is used (#11195)unstable_ prefix from Blocker/BlockerFunction types (#11187)Full Changelog: v6.21.2...v6.21.3
Date: 2024-01-11
useId for internal fetcher keys when available (#11166)Full Changelog: v6.21.1...v6.21.2
Date: 2023-12-21
route.lazy not working correctly on initial SPA load when v7_partialHydration is specified (#11121)submitting phase (#11102)resolveTo (#11097)Full Changelog: v6.21.0...v6.21.1
Date: 2023-12-13
future.v7_relativeSplatPathWe fixed a splat route path-resolution bug in 6.19.0, but later determined a large number of applications were relying on the buggy behavior, so we reverted the fix in 6.20.1 (see #10983, #11052, #11078).
The buggy behavior is that the default behavior when resolving relative paths inside a splat route would ignore any splat (*) portion of the current route path. When the future flag is enabled, splat portions are included in relative path logic within splat routes.
For more information, please refer to the useResolvedPath docs and/or the detailed changelog entry.
We added a new future.v7_partialHydration future flag for the @remix-run/router that enables partial hydration of a data router when Server-Side Rendering. This allows you to provide hydrationData.loaderData that has values for some initially matched route loaders, but not all. When this flag is enabled, the router will call loader functions for routes that do not have hydration loader data during router.initialize(), and it will render down to the deepest provided HydrateFallback (up to the first route without hydration data) while it executes the unhydrated routes. (#11033)
future.v7_relativeSplatPath flag to implement a breaking bug fix to relative routing when inside a splat route. (#11087)future.v7_partialHydration future flag that enables partial hydration of a data router when Server-Side Rendering (#11033)ErrorBoundary's (#11071)loader/action functions (#11061)relative="path" issue when rendering Link/NavLink outside of matched routes (#11062)Full Changelog: v6.20.1...v6.21.0
Date: 2023-12-01
useResolvedPath fix for splat routes due to a large number of applications that were relying on the buggy behavior (see #11052) (#11078)
6.19.0 and 6.20.0. If you are upgrading from 6.18.0 or earlier, you would not have been impacted by this fix.Full Changelog: v6.20.0...v6.20.1
Date: 2023-11-22
[!WARNING] Please use version
6.20.1or later instead of6.20.0. We discovered that a large number of apps were relying on buggy behavior that was fixed in this release (#11045). We reverted the fix in6.20.1and will be re-introducing it behind a future flag in a subsequent release. See #11052 for more details.
PathParam type from the public API (#10719)v7_fetcherPersist is enabled (#11044)resolveTo path resolution in splat routes (#11045)
getPathContributingMatchesUNSAFE_getPathContributingMatches export from @remix-run/router since we no longer need this in the react-router/react-router-dom layersFull Changelog: v6.19.0...v6.20.0
Date: 2023-11-16
[!WARNING] Please use version
6.20.1or later instead of6.19.0. We discovered that a large number of apps were relying on buggy behavior that was fixed in this release (#10983). We reverted the fix in6.20.1and will be re-introducing it behind a future flag in a subsequent release. See #11052 for more details.
unstable_flushSync APIThis release brings a new unstable_flushSync option to the imperative APIs (useSubmit, useNavigate, fetcher.submit, fetcher.load) to let users opt-into synchronous DOM updates for pending/optimistic UI.
function handleClick() {
submit(data, { flushSync: true });
// Everything is flushed to the DOM so you can focus/scroll to your pending/optimistic UI
setFocusAndOrScrollToNewlyAddedThing();
}
unstable_flushSync option to useNavigate/useSubmit/fetcher.load/fetcher.submit to opt-out of React.startTransition and into ReactDOM.flushSync for state updates (#11005)unstable_ prefix from the useBlocker hook as it's been in use for enough time that we are confident in the API (#10991)
unstable_usePrompt due to differences in how browsers handle window.confirm that prevent React Router from guaranteeing consistent/correct behaviorFix useActionData so it returns proper contextual action data and not any action data in the tree (#11023)
Fix bug in useResolvedPath that would cause useResolvedPath(".") in a splat route to lose the splat portion of the URL path. (#10983)
"." paths inside a splat route which incorrectly dropped the splat portion of the URL. If you are relative routing via "." inside a splat route in your application you should double check that your logic is not relying on this buggy behavior and update accordingly.Fix issue where a changing fetcher key in a useFetcher that remains mounted wasn't getting picked up (#11009)
Fix useFormAction which was incorrectly inheriting the ?index query param from child route action submissions (#11025)
Fix NavLink active logic when to location has a trailing slash (#10734)
Fix types so unstable_usePrompt can accept a BlockerFunction in addition to a boolean (#10991)
Fix relative="path" bug where relative path calculations started from the full location pathname, instead of from the current contextual route pathname. (#11006)
<Route path="/a">
<Route path="/b" element={<Component />}>
<Route path="/c" />
</Route>
</Route>;
function Component() {
return (
<>
{/* This is now correctly relative to /a/b, not /a/b/c */}
<Link to=".." relative="path" />
<Outlet />
</>
);
}
Full Changelog: 6.18.0...6.19.0
Date: 2023-10-31
Per this RFC, we've introduced some new APIs that give you more granular control over your fetcher behaviors.
useFetcher({ key: string }), which allows you to access the same fetcher instance from different components in your application without prop-drillinguseFetchers so that they can be looked up by keyForm and useSubmit now support optional navigate/fetcherKey props/params to allow kicking off a fetcher submission under the hood with an optionally user-specified key
<Form method="post" navigate={false} fetcherKey="my-key">submit(data, { method: "post", navigate: false, fetcherKey: "my-key" })useFetchers() or useFetcher({ key }) to look it up elsewherefuture.v7_fetcherPersist)Per the same RFC as above, we've introduced a new future.v7_fetcherPersist flag that allows you to opt-into the new fetcher persistence/cleanup behavior. Instead of being immediately cleaned up on unmount, fetchers will persist until they return to an idle state. This makes pending/optimistic UI much easier in scenarios where the originating fetcher needs to unmount.
useFetchers() API was always supposed to only reflect in-flight fetcher information for pending/optimistic UI -- it was not intended to reflect fetcher data or hang onto fetchers after they returned to an idle stateuseFetchers() after completion - they served no purpose in there since you can access the data via useFetcher().dataidle state
useFetchers while in-flight so you can still access pending/optimistic data after unmountkey, then it's result will be processed, even if the originating fetcher was unmountedkey APIs and navigate=false options (#10960)future.v7_fetcherPersist flag (#10962)matchPath (#10768)future prop on BrowserRouter, HashRouter and MemoryRouter so that it accepts a Partial<FutureConfig> instead of requiring all flags to be included (#10962)router.getFetcher/router.deleteFetcher type definitions which incorrectly specified key as an optional parameter (#10960)Full Changelog: 6.17.0...6.18.0
Date: 2023-10-16
We're excited to release experimental support for the View Transitions API in React Router! You can now trigger navigational DOM updates to be wrapped in document.startViewTransition to enable CSS animated transitions on SPA navigations in your application.
The simplest approach to enabling a View Transition in your React Router app is via the new <Link unstable_viewTransition> prop. This will cause the navigation DOM update to be wrapped in document.startViewTransition which will enable transitions for the DOM update. Without any additional CSS styles, you'll get a basic cross-fade animation for your page.
If you need to apply more fine-grained styles for your animations, you can leverage the unstable_useViewTransitionState hook which will tell you when a transition is in progress and you can use that to apply classes or styles:
function ImageLink(to, src, alt) {
const isTransitioning = unstable_useViewTransitionState(to);
return (
<Link to={to} unstable_viewTransition>
<img
src={src}
alt={alt}
style={{
viewTransitionName: isTransitioning ? "image-expand" : "",
}}
/>
</Link>
);
}
You can also use the <NavLink unstable_viewTransition> shorthand which will manage the hook usage for you and automatically add a transitioning class to the <a> during the transition:
a.transitioning img {
view-transition-name: "image-expand";
}
<NavLink to={to} unstable_viewTransition>
<img src={src} alt={alt} />
</NavLink>
For an example usage of View Transitions, check out our fork of the awesome Astro Records demo.
For more information on using the View Transitions API, please refer to the Smooth and simple transitions with the View Transitions API guide from the Google Chrome team.
ScrollRestoration when sessionStorage is unavailable (#10848)RouterProvider future prop type to be a Partial<FutureConfig> so that not all flags must be specified (#10900)ErrorResponse type to avoid leaking internal field (#10876)Full Changelog: 6.16.0...6.17.0
Date: 2023-09-13
any with unknown on exposed typings for user-provided data. To do this in Remix v2 without introducing breaking changes in React Router v6, we have added generics to a number of shared types. These continue to default to any in React Router and are overridden with unknown in Remix. In React Router v7 we plan to move these to unknown as a breaking change. (#10843)
Location now accepts a generic for the location.state valueActionFunctionArgs/ActionFunction/LoaderFunctionArgs/LoaderFunction now accept a generic for the context parameter (only used in SSR usages via createStaticHandler)useMatches (now exported as UIMatch) accepts generics for match.data and match.handle - both of which were already set to unknown@private class export ErrorResponse to an UNSAFE_ErrorResponseImpl export since it is an implementation detail and there should be no construction of ErrorResponse instances in userland. This frees us up to export a type ErrorResponse which correlates to an instance of the class via InstanceType. Userland code should only ever be using ErrorResponse as a type and should be type-narrowing via isRouteErrorResponse. (#10811)ShouldRevalidateFunctionArgs interface (#10797)_isFetchActionRedirect, _hasFetcherDoneAnything) (#10715)query/queryRoute calls (#10793)route.lazy routes (#10778)actionResult on the arguments object passed to shouldRevalidate (#10779)Full Changelog: v6.15.0...v6.16.0
Date: 2023-08-10
redirectDocument() function which allows users to specify that a redirect from a loader/action should trigger a document reload (via window.location) instead of attempting to navigate to the redirected location via React Router (#10705)useRevalidator is referentially stable across re-renders if revalidations are not actively occurring (#10707)URLSearchParams and the useSearchParams hook (#10620)unstable_usePrompt to avoid throwing an exception if the prompt is unblocked and a navigation is performed synchronously (#10687, #10718)useFormAction() for unspecified actions since it cannot be determined on the server and causes hydration issues (#10758)queryRoute that was not always identifying thrown Response instances (#10717)react-router-native: Update @ungap/url-search-params dependency from ^0.1.4 to ^0.2.2 (#10590)Full Changelog: v6.14.2...v6.15.0
Date: 2023-07-17
<Form state> prop to populate history.state on submission navigations (#10630)defer promise resolves/rejects with undefined in order to match the behavior of loaders and actions which must return a value or null (#10690)<ScrollRestoration> (#10682)Route.lazy to prohibit returning an empty object (#10634)Error subclasses such as ReferenceError/TypeError (#10633)Full Changelog: v6.14.1...v6.14.2
Date: 2023-06-30
unstable_useBlocker when used with an unstable blocker function (#10652)@remix-run/router@1.7.1Full Changelog: v6.14.0...v6.14.1
Date: 2023-06-23
6.14.0 adds support for JSON and Text submissions via useSubmit/fetcher.submit since it's not always convenient to have to serialize into FormData if you're working in a client-side SPA. To opt-into these encodings you just need to specify the proper formEncType:
Opt-into application/json encoding:
function Component() {
let navigation = useNavigation();
let submit = useSubmit();
submit({ key: "value" }, { method: "post", encType: "application/json" });
// navigation.formEncType => "application/json"
// navigation.json => { key: "value" }
}
async function action({ request }) {
// request.headers.get("Content-Type") => "application/json"
// await request.json() => { key: "value" }
}
Opt-into text/plain encoding:
function Component() {
let navigation = useNavigation();
let submit = useSubmit();
submit("Text submission", { method: "post", encType: "text/plain" });
// navigation.formEncType => "text/plain"
// navigation.text => "Text submission"
}
async function action({ request }) {
// request.headers.get("Content-Type") => "text/plain"
// await request.text() => "Text submission"
}
⚠️ Default Behavior Will Change in v7
Please note that to avoid a breaking change, the default behavior will still encode a simple key/value JSON object into a FormData instance:
function Component() {
let navigation = useNavigation();
let submit = useSubmit();
submit({ key: "value" }, { method: "post" });
// navigation.formEncType => "application/x-www-form-urlencoded"
// navigation.formData => FormData instance
}
async function action({ request }) {
// request.headers.get("Content-Type") => "application/x-www-form-urlencoded"
// await request.formData() => FormData instance
}
This behavior will likely change in v7 so it's best to make any JSON object submissions explicit with formEncType: "application/x-www-form-urlencoded" or formEncType: "application/json" to ease your eventual v7 migration path.
application/json and text/plain encodings for useSubmit/fetcher.submit. To reflect these additional types, useNavigation/useFetcher now also contain navigation.json/navigation.text and fetcher.json/fetcher.text which include the json/text submission if applicable. (#10413)submitter element, prefer the built-in new FormData(form, submitter) instead of the previous manual approach in modern browsers (those that support the new submitter parameter) (#9865)
type="image" buttonsformdata-submitter-polyfillwindow.history.pushState/replaceState before updating React Router state (instead of after) so that window.location matches useLocation during synchronous React 17 rendering (#10448)
window.location and should always reference useLocation when possible, as window.location will not be in sync 100% of the time (due to popstate events, concurrent mode, etc.)shouldRevalidate for fetchers that have not yet completed a data load (#10623)basename from the location provided to <ScrollRestoration getKey> to match the useLocation behavior (#10550)basename from locations provided to unstable_useBlocker functions to match the useLocation behavior (#10573)unstable_useBlocker key issues in StrictMode (#10573)generatePath when passed a numeric 0 value parameter (#10612)tsc --skipLibCheck:false issues on React 17 (#10622)typescript to 5.1 (#10581)Full Changelog: v6.13.0...v6.14.0
Date: 2023-06-14
6.13.0 is really a patch release in spirit but comes with a SemVer minor bump since we added a new future flag.
future.v7_startTransitionThe tl;dr; is that 6.13.0 is the same as 6.12.0 bue we've moved the usage of React.startTransition behind an opt-in future.v7_startTransition future flag because we found that there are applications in the wild that are currently using Suspense in ways that are incompatible with React.startTransition.
Therefore, in 6.13.0 the default behavior will no longer leverage React.startTransition:
<BrowserRouter>
<Routes>{/*...*/}</Routes>
</BrowserRouter>
<RouterProvider router={router} />
If you wish to enable React.startTransition, pass the future flag to your router component:
<BrowserRouter future={{ v7_startTransition: true }}>
<Routes>{/*...*/}</Routes>
</BrowserRouter>
<RouterProvider router={router} future={{ v7_startTransition: true }}/>
We recommend folks adopt this flag sooner rather than later to be better compatible with React concurrent mode, but if you run into issues you can continue without the use of React.startTransition until v7. Issues usually boil down to creating net-new promises during the render cycle, so if you run into issues when opting into React.startTransition, you should either lift your promise creation out of the render cycle or put it behind a useMemo.
React.startTransition usage behinds a future flag (#10596)React.startTransition minification bug in production mode (#10588)Full Changelog: v6.12.1...v6.13.0
Date: 2023-06-08
[!WARNING] Please use version
6.13.0or later instead of6.12.0/6.12.1. These versions suffered from some Webpack build/minification issues resulting failed builds or invalid minified code in your production bundles. See #10569 and #10579 for more details.
React.startTransition to fix webpack + react 17 compilation error (#10569)Full Changelog: v6.12.0...v6.12.1
Date: 2023-06-06
[!WARNING] Please use version
6.13.0or later instead of6.12.0/6.12.1. These versions suffered from some Webpack build/minification issues resulting failed builds or invalid minified code in your production bundles. See #10569 and #10579 for more details.
React.startTransition supportWith 6.12.0 we've added better support for suspending components by wrapping the internal router state updates in React.startTransition. This means that, for example, if one of your components in a destination route suspends and you have not provided a Suspense boundary to show a fallback, React will delay the rendering of the new UI and show the old UI until that asynchronous operation resolves. This could be useful for waiting for things such as waiting for images or CSS files to load (and technically, yes, you could use it for data loading but we'd still recommend using loaders for that 😀). For a quick overview of this usage, check out Ryan's demo on Twitter.
React.startTransition (#10438)DOMException (DataCloneError) when attempting to perform a PUSH navigation with non-serializable state. (#10427)jest and jsdom (#10453)@remix-run/router@1.6.3 (Changelog)Full Changelog: v6.11.2...v6.12.0
Date: 2023-05-17
basename duplication in descendant <Routes> inside a <RouterProvider> (#10492)SetURLSearchParams type (#10444)manifest in _internalSetRoutes (#10437)Full Changelog: v6.11.1...v6.11.2
Date: 2023-05-03
Component API within descendant <Routes> (#10434)useNavigate from <Routes> inside a <RouterProvider> (#10432)<Navigate> in strict mode when using a data router (#10435)basename handling when navigating without a path (#10433)/path#hash -> /path#hash) (#10408)Full Changelog: v6.11.0...v6.11.1
Date: 2023-04-28
basename support in useFetcher (#10336)
basename then you will need to remove the manually prepended basename from your fetcher calls (fetcher.load('/basename/route') -> fetcher.load('/route'))@remix-run/router@1.6.0 (Changelog)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)
BrowserRouter, these hooks remain unstable across location changes because they still rely on useLocation()action submissions or router.revalidate calls (#10344)Component instead of element on a route definition (#10287)<Link to="//"> and other invalid URL values (#10367)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)<Routes> when RouterProvider errors existed (#10374)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)useRevalidator() to resolve a loader-driven error boundary scenario (#10369)LoaderFunction/ActionFunction return type to prevent undefined from being a valid return value (#10267)fetcher.load call to a route without a loader (#10345)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: v6.10.0...v6.11.0
Date: 2023-03-29
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.
future.v7_normalizeFormMethodThe 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)
future.v7_normalizeFormMethod is unspecified or set to false (default v6 behavior),
useNavigation().formMethod is lowercaseuseFetcher().formMethod is lowercasefuture.v7_normalizeFormMethod === true:
useNavigation().formMethod is UPPERCASEuseFetcher().formMethod is UPPERCASEcreateStaticHandler to also check for ErrorBoundary on routes in addition to errorElement (#10190)createRoutesFromElements (#10193)shouldRevalidate if the fetcher action redirects (#10208)lazy() errors during router initialization (#10201)instanceof check for DeferredData to be resilient to ESM/CJS boundaries in SSR bundling scenarios (#10247)@remix-run/web-fetch@4.3.3 (#10216)Full Changelog: v6.9.0...v6.10.0
Date: 2023-03-10
Component/ErrorBoundary route propertiesReact 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"
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() { ... }
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.
route.Component/route.ErrorBoundary properties (#10045)route.lazy (#10045)generatePath incorrectly applying parameters in some cases (#10078)[react-router-dom-v5-compat] Add missed data router API re-exports (#10171)Full Changelog: v6.8.2...v6.9.0
Date: 2023-02-27
<Link to> as external if they are outside of the router basename (#10135)basename (#10076)<Link to> urls (#10112)StaticRouterProvider serialized hydration data (#10068)useBlocker to return IDLE_BLOCKER during SSR (#10046)defer loader responses in createStaticHandler's query() method (#10077)invariant to an UNSAFE_invariant export since it's only intended for internal use (#10066)Full Changelog: v6.8.1...v6.8.2
Date: 2023-02-06
Link component (now also supports mailto: urls) (#9994)Full Changelog: v6.8.0...v6.8.1
Date: 2023-01-26
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 */}
shouldRevalidate calls (#9948)
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.current*/next* parameters reflected the static fetcher.load URL (and thus were identical). Instead, they should have reflected the navigation that triggered the revalidation (as the form* parameters did). These parameters now correctly reflect the triggering navigation.useSearchParams (#9969)preventScrollReset on <fetcher.Form> (#9963)pagehide instead of beforeunload for <ScrollRestoration>. This has better cross-browser support, specifically on Mobile Safari. (#9945)instanceof check from isRouteErrorResponse to avoid bundling issues on the server (#9930)defer call only contains critical data and remove the AbortController (#9965)File FormData entries (#9867)react-router-dom-v5-compat - Fix SSR useLayoutEffect console.error when using CompatRouter (#9820)Full Changelog: v6.7.0...v6.8.0
Date: 2023-01-18
unstable_useBlocker/unstable_usePrompt hooks for blocking navigations within the app's location origin (#9709, #9932)preventScrollReset prop to <Form> (#9886)useBeforeUnload (#9709)generatePath when optional params are present (#9764)<Await> to accept ReactNode as children function return result (#9896)jsdom bug workaround in tests (#9824)Full Changelog: v6.6.2...v6.7.0
Date: 2023-01-09
useId consistency during SSR (#9805)Full Changelog: v6.6.1...v6.6.2
Date: 2022-12-23
shouldRevalidate on action redirects (#9777, #9782)actionData on action redirect to current location (#9772)Full Changelog: v6.6.0...v6.6.1
Date: 2022-12-21
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.
unstable_ prefix from createStaticHandler/createStaticRouter/StaticRouterProvider (#9738)useBeforeUnload() hook (#9664)<Form method> and useSubmit method values (#9664)<button formmethod> form submission overriddes (#9664)replace on submissions and PUSH on submission to new paths (#9734)useLoaderData usage in errorElement (#9735)Error objects from StaticRouterProvider (#9664)hydrationData (#9664)Full Changelog: v6.5.0...v6.6.0
Date: 2022-12-16
This release introduces support for Optional Route Segments. Now, adding a ? to the end of any path segment will make that entire segment optional. This works for both static segments and dynamic parameters.
Optional Params Examples
<Route path=":lang?/about> will match:
/:lang/about/about<Route path="/multistep/:widget1?/widget2?/widget3?"> will match:
/multistep/multistep/:widget1/multistep/:widget1/:widget2/multistep/:widget1/:widget2/:widget3Optional Static Segment Example
<Route path="/home?"> will match:
//home<Route path="/fr?/about"> will match:
/about/fr/about<Route path="prefix-:param">, to align with how splat parameters work. If you were previously relying on this behavior then it's recommended to extract the static portion of the path at the useParams call site: (#9506)// Old behavior at URL /prefix-123
<Route path="prefix-:id" element={<Comp /> }>
function Comp() {
let params = useParams(); // { id: '123' }
let id = params.id; // "123"
...
}
// New behavior at URL /prefix-123
<Route path=":id" element={<Comp /> }>
function Comp() {
let params = useParams(); // { id: 'prefix-123' }
let id = params.id.replace(/^prefix-/, ''); // "123"
...
}
headers on loader request's after SSR document action request (#9721)Full Changelog: v6.4.5...v6.5.0
Date: 2022-12-07
GET request (#9680)instanceof Response checks in favor of isResponse (#9690)URL creation in Cloudflare Pages or other non-browser-environments (#9682, #9689)requestContext support to static handler query/queryRoute (#9696)
queryRoute(path, routeId) has been changed to queryRoute(path, { routeId, requestContext })Full Changelog: v6.4.4...v6.4.5
Date: 2022-11-30
action/loader function returns undefined as revalidations need to know whether the loader has previously been executed. undefined also causes issues during SSR stringification for hydration. You should always ensure your loader/action returns a value, and you may return null if you don't wish to return anything. (#9511)basename in static data routers (#9591)ErrorResponse bodies to contain more descriptive text in internal 403/404/405 scenariosNavLink and descendant <Routes> (#9589, #9647)ErrorResponse instances when using built-in hydration (#9593)basename in static data routers (#9591)@remix-run/router@1.0.4react-router@6.4.4Full Changelog: v6.4.3...v6.4.4
Date: 2022-11-01
<a href> values when using createHashRouter (#9409)formAction pathnames when an index route also has a path (#9486)relative=path prop on NavLink (#9453)NavLink behavior for root urls (#9497)useRoutes should be able to return null when passing locationArg (#9485)initialEntries type in createMemoryRouter (#9498)basename and relative routing in loader/action redirects (#9447)action function (#9455)@remix-run/router (#9446)createURL in local file execution in Firefox (#9464)Full Changelog: v6.4.2...v6.4.3
Date: 2022-10-06
basename in useFormAction (#9352)IndexRouteObject and NonIndexRouteObject types to make hasErrorElement optional (#9394)RouteObject/RouteProps types to surface the error in TypeScript. (#9366)Full Changelog: v6.4.1...v6.4.2
Date: 2022-09-22
initialEntries (#9288)?index for fetcher get submissions to index routes (#9312)Full Changelog: v6.4.0...v6.4.1
Date: 2022-09-13
Whoa this is a big one! 6.4.0 brings all the data loading and mutation APIs over from Remix. Here's a quick high level overview, but it's recommended you go check out the docs, especially the feature overview and the tutorial.
New react-router APIs
createMemoryRouter<RouterProvider>loader and mutate with a Route actionerrorElementdefer and AwaitNew react-router-dom APIs
createBrowserRouter/createHashRouter<Form> componentuseFetcher()defer and Await<ScrollRestoration><Link relative="path"> (#9160)useLocation returns the scoped location inside a <Routes location> component (#9094)<Link replace> prop if it is defined (#8779)Full Changelog: v6.3.0...v6.4.0
Date: 2022-03-31
Full Changelog: v6.2.2...v6.3.0
Date: 2022-02-28
Full Changelog: v6.2.1...v6.2.2
Date: 2021-12-17
history dependency to 5.2.0.Full Changelog: v6.2.0...v6.2.1
Date: 2021-12-17
RouteProps element type, which should be a ReactNode (#8473)useOutlet for top-level routes (#8483)Full Changelog: v6.1.1...v6.2.0
Date: 2021-12-11
HistoryRouter as unstable_HistoryRouter, as this API will likely need to change before a new major release.Full Changelog: v6.1.0...v6.1.1
Date: 2021-12-10
<Outlet> can now receive a context prop. This value is passed to child routes and is accessible via the new useOutletContext hook. See the API docs for details. (#8461)<NavLink> can now receive a child function for access to its props. (#8164)useMatch and matchPath. For example, when you call useMatch("foo/:bar/:baz"), the path is parsed and the return type will be PathMatch<"bar" | "baz">. (#8030)Full Changelog: v6.0.2...v6.1.0
Date: 2021-11-09
reloadDocument prop to <Link>. This allows <Link> to function like a normal anchor tag by reloading the document after navigation while maintaining the relative to resolution (#8283)Full Changelog: v6.0.1...v6.0.2
Date: 2021-11-05
<StaticRouter location> value (#8243)<Route> inside <Routes> to help people make the change (#8238)Full Changelog: v6.0.0...v6.0.1
Date: 2021-11-03
React Router v6 is here!
Please go read our blog post for more information on all the great stuff in v6 including notes about how to upgrade from React Router v5 and Reach Router.