UNPKG

143 kBMarkdownView Raw
1# `react-router`
2
3## v8.0.0
4
5### Major Changes
6
7- Remove the `future.v8_trailingSlashAwareDataRequests` flag ([#15100](https://github.com/remix-run/react-router/pull/15100))
8 - Trailing slash-aware data request URLs are now the default behavior.
9- Update `tsconfig.json` `target`/`lib` from `ES2020 -> ES2022` ([591853e](https://github.com/remix-run/react-router/commit/591853e))
10- Switch the published packages in `packages/` to ESM-only. ([#14895](https://github.com/remix-run/react-router/pull/14895)) ([59ebcf1](https://github.com/remix-run/react-router/commit/59ebcf1))
11- Remove deprecated `data` parameter in favor of `loaderData` for `meta` APIs (to align with `Route.ComponentProps`) ([#14931](https://github.com/remix-run/react-router/pull/14931))
12 - `Route.MetaArgs`, `Route.MetaMatch`, `MetaArgs`, `MetaMatch`, `Route.ComponentProps.matches`, `UIMatch`
13- Remove `future.v8_passThroughRequests` flag - the raw incoming `request` is now always passed through to `loader`/`action`. Use `url` for the normalized URL without React Router-specific implementation details (`.data` suffixes, `index`/`_routes` search params). ([#15079](https://github.com/remix-run/react-router/pull/15079))
14- Remove internal `hasErrorBoundary` field added to `router.routes` when using a data router ([#15074](https://github.com/remix-run/react-router/pull/15074))
15 - This should not impact user-facing code since this was an internal prop and was computed based on the presence of `ErrorBoundary` or `errorElement` on your route
16 - `hasErrorBoundary` is no longer accepted on `RouteObject` (`IndexRouteObject`/`NonIndexRouteObject`), `DataRouteObject`, `<Route>` JSX props, or as a key in `lazy` route definitions.
17 - The `MapRoutePropertiesFunction` signature no longer requires returning `hasErrorBoundary`; the router infers it directly.
18- Remove `react-router-dom` package ([#15076](https://github.com/remix-run/react-router/pull/15076))
19 - In v7 everything DOM-specific was collapsed into `react-router/dom`
20 - `react-router-dom` was kept around as a convenience so existing v6 app imports would still work
21 - For v8, you will need to swap `react-router-dom` imports:
22 - `RouterProvider`/`HydratedRouter` should be imported from `react-router/dom`
23 - Everything else should be imported from `react-router`
24- Remove `future.v8_middleware` flag — middleware is always enabled in v8 ([#15078](https://github.com/remix-run/react-router/pull/15078))
25 - The `future.v8_middleware` flag has been removed; middleware is now always enabled
26 - The `context` parameter passed to `loader`, `action`, and `middleware` functions is always a `RouterContextProvider` instance
27 - `getLoadContext` functions in custom servers must return a `RouterContextProvider` — returning a plain object is no longer supported
28 - The `MiddlewareEnabled` type (previously exported as `UNSAFE_MiddlewareEnabled`) has been removed since the conditional it gated is now unconditional
29 - The `Future` module augmentation pattern (`interface Future { v8_middleware: true }`) is no longer needed to type `context` in Data Mode
30- Update minimum Node version to 22.22.0 ([#14928](https://github.com/remix-run/react-router/pull/14928))
31- Update minimum React version to 19.2.7 ([#15062](https://github.com/remix-run/react-router/pull/15062))
32
33### Minor Changes
34
35- Bump dependencies ([#15080](https://github.com/remix-run/react-router/pull/15080))
36 - Bumped `cookie` from `^1.0.1` to `^1.1.1`
37 - Bumped `set-cookie-parser` from `^2.6.0` to `^3.1.0`
38
39### Patch Changes
40
41- Ensure client middleware errors load lazy route error boundaries before bubbling ([#15086](https://github.com/remix-run/react-router/pull/15086))
42- Remove explicit `onSubmit` type override from `SharedFormProps` to fix deprecation warning with `@types/react@19.x` ([#14932](https://github.com/remix-run/react-router/pull/14932)) ([59ebcf1](https://github.com/remix-run/react-router/commit/59ebcf1))
43- Update package builds to preserve individual module files in published artifacts. Public APIs and documented import paths are unchanged. ([#15092](https://github.com/remix-run/react-router/pull/15092))
44 - Updated package TypeScript configs to support modern module syntax used by the build configuration.
45- Migrate package builds from `tsup` to `tsdown`. Published package entry points and public APIs are unchanged. ([#15092](https://github.com/remix-run/react-router/pull/15092))
46- Upgrade React Router's TypeScript tooling to TypeScript 6. Runtime behavior and public APIs are unchanged. ([#15092](https://github.com/remix-run/react-router/pull/15092))
47
48## v7.18.0
49
50### Patch Changes
51
52- Fix server handler prerender responses when using `ssr: false` and `future.v8_trailingSlashAwareDataRequests: true`. Avoids false positive "SPA Mode" detection when serving prerendered paths ([#15173](https://github.com/remix-run/react-router/pull/15173))
53- Use the `ServerRouter` nonce for nonce-aware SSR components when they don't provide their own value so strict CSP pages can load them. ([#15170](https://github.com/remix-run/react-router/pull/15170))
54- Use `turbo-stream` to serialize and deserialize Framework Mode hydration errors ([#15175](https://github.com/remix-run/react-router/pull/15175))
55- Precompute route branch matchers to avoid recompiling route path regexes during matching ([#15186](https://github.com/remix-run/react-router/pull/15186))
56- Use the constructed request URL host when validating action request origins. ([#15185](https://github.com/remix-run/react-router/pull/15185))
57- Remove the un-documented custom error serialization logic from Data Mode SSR built-in hydration flows ([#15175](https://github.com/remix-run/react-router/pull/15175))
58- Validate protocols in RSC render redirects ([#15177](https://github.com/remix-run/react-router/pull/15177))
59- Consolidate url normalization logic and better handle mixed slashes ([#15176](https://github.com/remix-run/react-router/pull/15176))
60
61## v7.17.0
62
63### Minor Changes
64
65- Ship a subset of the official documentation inside the `react-router` package ([#15121](https://github.com/remix-run/react-router/pull/15121))
66 - Markdown docs are now available in `node_modules/react-router/docs`, letting AI coding agents and the React Router agent skills read official docs locally
67 - Excludes auto-generated API docs (`api/`), `community/` content, and tutorials (`tutorials/`)
68
69## v7.16.0
70
71### Minor Changes
72
73- Stabilize `future.unstable_trailingSlashAwareDataRequests` as `future.v8_trailingSlashAwareDataRequests` ([#15098](https://github.com/remix-run/react-router/pull/15098))
74
75### Patch Changes
76
77- Disable manifest path when lazy route dicovery is disabled ([#15068](https://github.com/remix-run/react-router/pull/15068))
78
79- Fix browser URL creation to use the configured history window instead of the global window. ([#15066](https://github.com/remix-run/react-router/pull/15066))
80 - Pass the history/router window through to `createBrowserURLImpl` so custom window contexts keep the correct URL origin.
81
82- Fix `useNavigation()` return type to preserve discriminated union across navigation states ([#15095](https://github.com/remix-run/react-router/pull/15095))
83
84- Widen `MetaDescriptor` `script:ld+json` type from `LdJsonObject` to `LdJsonObject | LdJsonObject[]` to permit multiple JSON-LD schemas in a single `<script type="application/ld+json">` tag emitted by `<Meta />` ([#15082](https://github.com/remix-run/react-router/pull/15082))
85
86## v7.15.1
87
88### Patch Changes
89
90- Update router to operate on fetcher Maps in an immutable manner to avoid delayed React renders from potentially reading an updated but not yet committed Map. This could result in brief flickers in some fetcher-driven optimistic UI scenarios. ([#15028](https://github.com/remix-run/react-router/pull/15028))
91- Fix `serverLoader()` returning stale SSR data when a client navigation aborts pending hydration before the hydration `clientLoader` resolves ([#15022](https://github.com/remix-run/react-router/pull/15022))
92- Fix `RouterProvider` `onError` callback not being called for synchronous initial loader errors in SPA mode ([#15039](https://github.com/remix-run/react-router/pull/15039)) ([#14942](https://github.com/remix-run/react-router/pull/14942))
93- Memoize `useFetchers` to return a stable identity and only change if fetchers changed ([#15028](https://github.com/remix-run/react-router/pull/15028))
94- Internal refactor to consolidate mutation request detection through shared utility ([#15033](https://github.com/remix-run/react-router/pull/15033))
95
96### Unstable Changes
97
98⚠️ _[Unstable features](https://reactrouter.com/community/api-development-strategy#unstable-flags) are not recommended for production use_
99
100- Add a new `unstable_useRouterState()` hook that consolidates access to active and pending router states (RFC: #12358) ([#15017](https://github.com/remix-run/react-router/pull/15017))
101 - Data/Framework/RSC only — throws when used without a data router
102 - This should allow you to consolidate usages of the following hooks which will likely be deprecated and removed in a future major version
103 - `useLocation`
104 - `useSearchParams`
105 - `useParams`
106 - `useMatches`
107 - `useNavigationType`
108 - `useNavigation`
109
110 ```ts
111 let { active, pending } = unstable_useRouterState();
112
113 // Active is always populated with the current location
114 active.location; // replaces `useLocation()`
115 active.searchParams; // replaces `useSearchParams()[0]`
116 active.params; // replaces `useParams()`
117 active.matches; // replaces `useMatches()`
118 active.type; // replaces `useNavigationType()`
119
120 // Pending is only populated during a navigation
121 pending.location; // replaces `useNavigation().location`
122 pending.searchParams; // equivalent to `new URLSearchParams(useNavigation().search)`
123 pending.params; // Not directly accessible today
124 pending.matches; // Not directly accessible today
125 pending.type; // Not directly accessible today
126 pending.state; // replaces `useNavigation().state`
127 pending.formMethod; // replaces useNavigation().formMethod
128 pending.formAction; // replaces useNavigation().formAction
129 pending.formEncType; // replaces useNavigation().formEncType
130 pending.formData; // replaces useNavigation().formData
131 pending.json; // replaces useNavigation().json
132 pending.text; // replaces useNavigation().text
133 ```
134
135## v7.15.0
136
137### Minor Changes
138
139- Stabilize `unstable_defaultShouldRevalidate` as `defaultShouldRevalidate` on `<Link>`, `<Form>`, `useLinkClickHandler`, `useSubmit`, `fetcher.submit`, and `setSearchParams` ([a993f09](https://github.com/remix-run/react-router/commit/a993f09))
140 - ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
141
142- Stabilize the instrumentation APIs. `unstable_instrumentations` is now `instrumentations` and `unstable_pattern` is now `pattern` ([a993f09](https://github.com/remix-run/react-router/commit/a993f09))
143 - The `unstable_ServerInstrumentation`, `unstable_ClientInstrumentation`, `unstable_InstrumentRequestHandlerFunction`, `unstable_InstrumentRouterFunction`, `unstable_InstrumentRouteFunction`, and `unstable_InstrumentationHandlerResult` types have had their `unstable_` prefixes removed
144 - ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
145
146- Stabilize `unstable_mask` as `mask` on `<Link>`, `useLinkClickHandler`, and `useNavigate`, and rename the corresponding `Location.unstable_mask` field to `Location.mask` ([a993f09](https://github.com/remix-run/react-router/commit/a993f09))
147 - ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
148
149- Stabilize the `unstable_normalizePath` option on `staticHandler.query` and `staticHandler.queryRoute` as `normalizePath` ([a993f09](https://github.com/remix-run/react-router/commit/a993f09))
150 - ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
151
152- Stabilize `future.unstable_passThroughRequests` as `future.v8_passThroughRequests` ([a993f09](https://github.com/remix-run/react-router/commit/a993f09))
153 - ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
154
155- Remove `unstable_subResourceIntegrity` from the runtime `FutureConfig` type; the flag is now controlled by the top-level `subResourceIntegrity` option in `react-router.config.ts` ([a993f09](https://github.com/remix-run/react-router/commit/a993f09))
156 - ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
157
158- Stabilize `unstable_url` as `url` on `loader`, `action`, and `middleware` function args ([a993f09](https://github.com/remix-run/react-router/commit/a993f09))
159 - ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
160
161- Stabilize `unstable_useTransitions` as `useTransitions` on `<BrowserRouter>`, `<HashRouter>`, `<HistoryRouter>`, `<MemoryRouter>`, `<Router>`, `<RouterProvider>`, `<HydratedRouter>`, and `useLinkClickHandler` ([a993f09](https://github.com/remix-run/react-router/commit/a993f09))
162 - ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
163
164### Patch Changes
165
166- Add `nonce` to `<Scripts>` `<link rel="modulepreload">` elements (if provided) ([af5d49b](https://github.com/remix-run/react-router/commit/af5d49b))
167
168- 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](https://github.com/remix-run/react-router/pull/15012))
169
170- Improve server-side route matching performance by pre-computing flattened/cached route branches ([#14967](https://github.com/remix-run/react-router/pull/14967)) ([af5d49b](https://github.com/remix-run/react-router/commit/af5d49b))
171 - Performance benchmarks showed roughly a 10-15% improvement in server-side request handling performance
172
173- Mark `mask` as an optional field in `Location` for easier mocking in unit tests ([#14999](https://github.com/remix-run/react-router/pull/14999))
174
175- Cache flattened/ranked route branches to optimize server-side route matching ([#14967](https://github.com/remix-run/react-router/pull/14967))
176
177- Improve route matching performance in Framework/Data Mode ([#14971](https://github.com/remix-run/react-router/pull/14971)) ([af5d49b](https://github.com/remix-run/react-router/commit/af5d49b))
178 - Avoiding unnecessary calls to `matchRoutes` in data router scenarios
179 - This includes adding back the optimization that was removed in `7.6.0` ([#13562](https://github.com/remix-run/react-router/pull/13562))
180 - 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`
181 - Leverage pre-computed pre-computing flattened/cached route branches during client side route matching
182 - Performance benchmarks showed roughly a 15-30% improvement in server-side request handling performance
183
184## v7.14.2
185
186### Patch Changes
187
188- 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.). ([[aabf4a1](https://github.com/remix-run/react-router/commit/aabf4a1))
189
190- Properly handle parent middleware redirects during `fetcher.load` ([[aabf4a1](https://github.com/remix-run/react-router/commit/aabf4a1))
191
192- Remove redundant `Omit<RouterProviderProps, "flushSync">` from `react-router/dom` `RouterProvider` ([[aabf4a1](https://github.com/remix-run/react-router/commit/aabf4a1))
193
194- Improved types for `generatePath`'s `param` arg ([[aabf4a1](https://github.com/remix-run/react-router/commit/aabf4a1))
195
196 Type errors when required params are omitted:
197
198 ```ts
199 // Before
200 // Passes type checks, but throws at runtime 💥
201 generatePath(":required", { required: null });
202
203 // After
204 generatePath(":required", { required: null });
205 // ^^^^^^^^ Type 'null' is not assignable to type 'string'.ts(2322)
206 ```
207
208 Allow omission of optional params:
209
210 ```ts
211 // Before
212 generatePath(":optional?", {});
213 // ^^ Property 'optional' is missing in type '{}' but required in type '{ optional: string | null | undefined; }'.ts(2741)
214
215 // After
216 generatePath(":optional?", {});
217 ```
218
219 Allows extra keys:
220
221 ```ts
222 // Before
223 generatePath(":a", { a: "1", b: "2" });
224 // ^ Object literal may only specify known properties, and 'b' does not exist in type '{ a: string; }'.ts(2353)
225
226 // After
227 generatePath(":a", { a: "1", b: "2" });
228 ```
229
230## v7.14.1
231
232### Patch Changes
233
234- Fix a potential race condition that can occur when rendering a `HydrateFallback` and initial loaders land before the `router.subscribe` call happens in the `RouterProvider` layout effect
235- Normalize double-slashes in redirect paths
236
237## 7.14.0
238
239### Patch Changes
240
241- UNSTABLE RSC FRAMEWORK MODE BREAKING CHANGE - Existing route module exports remain unchanged from stable v7 non-RSC mode, but new exports are added for RSC mode. If you want to use RSC features, you will need to update your route modules to export the new annotations. ([#14901](https://github.com/remix-run/react-router/pull/14901))
242
243 If you are using RSC framework mode currently, you will need to update your route modules to the new conventions. The following route module components have their own mutually exclusive server component counterparts:
244
245 | Server Component Export | Client Component |
246 | ----------------------- | ----------------- |
247 | `ServerComponent` | `default` |
248 | `ServerErrorBoundary` | `ErrorBoundary` |
249 | `ServerLayout` | `Layout` |
250 | `ServerHydrateFallback` | `HydrateFallback` |
251
252 If you were previously exporting a `ServerComponent`, your `ErrorBoundary`, `Layout`, and `HydrateFallback` were also server components. If you want to keep those as server components, you can rename them and prefix them with `Server`. If you were previously importing the implementations of those components from a client module, you can simply inline them.
253
254 Example:
255
256 Before
257
258 ```tsx
259 import { ErrorBoundary as ClientErrorBoundary } from "./client";
260
261 export function ServerComponent() {
262 // ...
263 }
264
265 export function ErrorBoundary() {
266 return <ClientErrorBoundary />;
267 }
268
269 export function Layout() {
270 // ...
271 }
272
273 export function HydrateFallback() {
274 // ...
275 }
276 ```
277
278 After
279
280 ```tsx
281 export function ServerComponent() {
282 // ...
283 }
284
285 export function ErrorBoundary() {
286 // previous implementation of ClientErrorBoundary, this is now a client component
287 }
288
289 export function ServerLayout() {
290 // rename previous Layout export to ServerLayout to make it a server component
291 }
292
293 export function ServerHydrateFallback() {
294 // rename previous HydrateFallback export to ServerHydrateFallback to make it a server component
295 }
296 ```
297
298- rsc Link prefetch ([#14902](https://github.com/remix-run/react-router/pull/14902))
299
300- Remove recursion from turbo-stream v2 allowing for encoding / decoding of massive payloads. ([#14838](https://github.com/remix-run/react-router/pull/14838))
301
302- encodeViaTurboStream leaked memory via unremoved AbortSignal listener ([#14900](https://github.com/remix-run/react-router/pull/14900))
303
304## 7.13.2
305
306### Patch Changes
307
308- Fix clientLoader.hydrate when an ancestor route is also hydrating a clientLoader ([#14835](https://github.com/remix-run/react-router/pull/14835))
309
310- Fix type error when passing Framework Mode route components using `Route.ComponentProps` to `createRoutesStub` ([#14892](https://github.com/remix-run/react-router/pull/14892))
311
312- Fix percent encoding in relative path navigation ([#14786](https://github.com/remix-run/react-router/pull/14786))
313
314- Add `future.unstable_passThroughRequests` flag ([#14775](https://github.com/remix-run/react-router/pull/14775))
315
316 By default, React Router normalizes the `request.url` passed to your `loader`, `action`, and `middleware` functions by removing React Router's internal implementation details (`.data` suffixes, `index` + `_routes` query params).
317
318 Enabling this flag removes that normalization and passes the raw HTTP `request` instance to your handlers. This provides a few benefits:
319 - Reduces server-side overhead by eliminating multiple `new Request()` calls on the critical path
320 - Allows you to distinguish document from data requests in your handlers base don the presence of a `.data` suffix (useful for observability purposes)
321
322 If you were previously relying on the normalization of `request.url`, you can switch to use the new sibling `unstable_url` parameter which contains a `URL` instance representing the normalized location:
323
324 ```tsx
325 // ❌ Before: you could assume there was no `.data` suffix in `request.url`
326 export async function loader({ request }: Route.LoaderArgs) {
327 let url = new URL(request.url);
328 if (url.pathname === "/path") {
329 // This check will fail with the flag enabled because the `.data` suffix will
330 // exist on data requests
331 }
332 }
333
334 // ✅ After: use `unstable_url` for normalized routing logic and `request.url`
335 // for raw routing logic
336 export async function loader({ request, unstable_url }: Route.LoaderArgs) {
337 if (unstable_url.pathname === "/path") {
338 // This will always have the `.data` suffix stripped
339 }
340
341 // And now you can distinguish between document versus data requests
342 let isDataRequest = new URL(request.url).pathname.endsWith(".data");
343 }
344 ```
345
346- Internal refactor to consolidate framework-agnostic/React-specific route type layers - no public API changes ([#14765](https://github.com/remix-run/react-router/pull/14765))
347
348- Sync protocol validation to rsc flows ([#14882](https://github.com/remix-run/react-router/pull/14882))
349
350- Add a new `unstable_url: URL` parameter to route handler methods (`loader`, `action`, `middleware`, etc.) representing the normalized URL the application is navigating to or fetching, with React Router implementation details removed (`.data`suffix, `index`/`_routes` query params) ([#14775](https://github.com/remix-run/react-router/pull/14775))
351
352 This is being added alongside the new `future.unstable_passthroughRequests` future flag so that users still have a way to access the normalized URL when that flag is enabled and non-normalized `request`'s are being passed to your handlers. When adopting this flag, you will only need to start leveraging this new parameter if you are relying on the normalization of `request.url` in your application code.
353
354 If you don't have the flag enabled, then `unstable_url` will match `request.url`.
355
356## 7.13.1
357
358### Patch Changes
359
360- fix null reference exception in bad codepath leading to invalid route tree comparisons ([#14780](https://github.com/remix-run/react-router/pull/14780))
361
362- fix: clear timeout when turbo-stream encoding completes ([#14810](https://github.com/remix-run/react-router/pull/14810))
363
364- Improve error message when Origin header is invalid ([#14743](https://github.com/remix-run/react-router/pull/14743))
365
366- Fix matchPath optional params matching without a "/" separator. ([#14689](https://github.com/remix-run/react-router/pull/14689))
367 - matchPath("/users/:id?", "/usersblah") now returns null.
368 - matchPath("/test_route/:part?", "/test_route_more") now returns null.
369
370- add RSC unstable_getRequest ([#14758](https://github.com/remix-run/react-router/pull/14758))
371
372- Fix `HydrateFallback` rendering during initial lazy route discovery with matching splat route ([#14740](https://github.com/remix-run/react-router/pull/14740))
373
374- \[UNSTABLE] Add support for `<Link unstable_mask>` in Data Mode which allows users to navigate to a URL in the router but "mask" the URL displayed in the browser. This is useful for contextual routing usages such as displaying an image in a model on top of a gallery, but displaying a browser URL directly to the image that can be shared and loaded without the contextual gallery in the background. ([#14716](https://github.com/remix-run/react-router/pull/14716))
375
376 ```tsx
377 // routes/gallery.tsx
378 export function clientLoader({ request }: Route.LoaderArgs) {
379 let sp = new URL(request.url).searchParams;
380 return {
381 images: getImages(),
382 // When the router location has the image param, load the modal data
383 modalImage: sp.has("image") ? getImage(sp.get("image")!) : null,
384 };
385 }
386
387 export default function Gallery({ loaderData }: Route.ComponentProps) {
388 return (
389 <>
390 <GalleryGrid>
391 {loaderData.images.map((image) => (
392 <Link
393 key={image.id}
394 {/* Navigate the router to /galley?image=N */}}
395 to={`/gallery?image=${image.id}`}
396 {/* But display /images/N in the URL bar */}}
397 unstable_mask={`/images/${image.id}`}
398 >
399 <img src={image.url} alt={image.alt} />
400 </Link>
401 ))}
402 </GalleryGrid>
403
404 {/* When the modal data exists, display the modal */}
405 {data.modalImage ? (
406 <dialog open>
407 <img src={data.modalImage.url} alt={data.modalImage.alt} />
408 </dialog>
409 ) : null}
410 </>
411 );
412 }
413 ```
414
415 Notes:
416 - The masked location, if present, will be available on `useLocation().unstable_mask` so you can detect whether you are currently masked or not.
417 - Masked URLs only work for SPA use cases, and will be removed from `history.state` during SSR.
418 - This provides a first-class API to mask URLs in Data Mode to achieve the same behavior you could do in Declarative Mode via [manual `backgroundLocation` management](https://github.com/remix-run/react-router/tree/main/examples/modal).
419
420- RSC: Update failed origin checks to return a 400 status and appropriate UI instead of a generic 500 ([#14755](https://github.com/remix-run/react-router/pull/14755))
421
422- Preserve query parameters and hash on manifest version mismatch reload ([#14813](https://github.com/remix-run/react-router/pull/14813))
423
424## 7.13.0
425
426### Minor Changes
427
428- Add `crossOrigin` prop to `Links` component ([#14687](https://github.com/remix-run/react-router/pull/14687))
429
430### Patch Changes
431
432- Fix double slash normalization for useNavigate colon urls ([#14718](https://github.com/remix-run/react-router/pull/14718))
433- Update failed origin checks to return a 400 status instead of a 500 ([#14737](https://github.com/remix-run/react-router/pull/14737))
434- Bugfix #14666: Inline criticalCss is missing nonce ([#14691](https://github.com/remix-run/react-router/pull/14691))
435- Loosen `allowedActionOrigins` glob check so `**` matches all domains ([#14722](https://github.com/remix-run/react-router/pull/14722))
436
437## 7.12.0
438
439### Minor Changes
440
441- Add additional layer of CSRF protection by rejecting submissions to UI routes from external origins. If you need to permit access to specific external origins, you can specify them in the `react-router.config.ts` config `allowedActionOrigins` field. ([#14708](https://github.com/remix-run/react-router/pull/14708))
442
443### Patch Changes
444
445- Fix `generatePath` when used with suffixed params (i.e., "/books/:id.json") ([#14269](https://github.com/remix-run/react-router/pull/14269))
446
447- Export `UNSAFE_createMemoryHistory` and `UNSAFE_createHashHistory` alongside `UNSAFE_createBrowserHistory` for consistency. These are not intended to be used for new apps but intended to help apps usiong `unstable_HistoryRouter` migrate from v6->v7 so they can adopt the newer APIs. ([#14663](https://github.com/remix-run/react-router/pull/14663))
448
449- Escape HTML in scroll restoration keys ([#14705](https://github.com/remix-run/react-router/pull/14705))
450
451- Validate redirect locations ([#14706](https://github.com/remix-run/react-router/pull/14706))
452
453- \[UNSTABLE] Pass `<Scripts nonce>` value through to the underlying `importmap` `script` tag when using `future.unstable_subResourceIntegrity` ([#14675](https://github.com/remix-run/react-router/pull/14675))
454
455- \[UNSTABLE] Add a new `future.unstable_trailingSlashAwareDataRequests` flag to provide consistent behavior of `request.pathname` inside `middleware`, `loader`, and `action` functions on document and data requests when a trailing slash is present in the browser URL. ([#14644](https://github.com/remix-run/react-router/pull/14644))
456
457 Currently, your HTTP and `request` pathnames would be as follows for `/a/b/c` and `/a/b/c/`
458
459 | URL `/a/b/c` | **HTTP pathname** | **`request` pathname\`** |
460 | ------------ | ----------------- | ------------------------ |
461 | **Document** | `/a/b/c` | `/a/b/c` ✅ |
462 | **Data** | `/a/b/c.data` | `/a/b/c` ✅ |
463
464 | URL `/a/b/c/` | **HTTP pathname** | **`request` pathname\`** |
465 | ------------- | ----------------- | ------------------------ |
466 | **Document** | `/a/b/c/` | `/a/b/c/` ✅ |
467 | **Data** | `/a/b/c.data` | `/a/b/c` ⚠️ |
468
469 With this flag enabled, these pathnames will be made consistent though a new `_.data` format for client-side `.data` requests:
470
471 | URL `/a/b/c` | **HTTP pathname** | **`request` pathname\`** |
472 | ------------ | ----------------- | ------------------------ |
473 | **Document** | `/a/b/c` | `/a/b/c` ✅ |
474 | **Data** | `/a/b/c.data` | `/a/b/c` ✅ |
475
476 | URL `/a/b/c/` | **HTTP pathname** | **`request` pathname\`** |
477 | ------------- | ------------------ | ------------------------ |
478 | **Document** | `/a/b/c/` | `/a/b/c/` ✅ |
479 | **Data** | `/a/b/c/_.data` ⬅️ | `/a/b/c/` ✅ |
480
481 This a bug fix but we are putting it behind an opt-in flag because it has the potential to be a "breaking bug fix" if you are relying on the URL format for any other application or caching logic.
482
483 Enabling this flag also changes the format of client side `.data` requests from `/_root.data` to `/_.data` when navigating to `/` to align with the new format. This does not impact the `request` pathname which is still `/` in all cases.
484
485- Preserve `clientLoader.hydrate=true` when using `<HydratedRouter unstable_instrumentations>` ([#14674](https://github.com/remix-run/react-router/pull/14674))
486
487## 7.11.0
488
489### Minor Changes
490
491- Stabilize `<HydratedRouter onError>`/`<RouterProvider onError>` ([#14546](https://github.com/remix-run/react-router/pull/14546))
492
493### Patch Changes
494
495- add support for throwing redirect Response's at RSC render time ([#14596](https://github.com/remix-run/react-router/pull/14596))
496
497- Support for throwing `data()` and Response from server component render phase. Response body is not serialized as async work is not allowed as error encoding phase. If you wish to transmit data to the boundary, throw `data()` instead. ([#14632](https://github.com/remix-run/react-router/pull/14632))
498
499- Fix `unstable_useTransitions` prop on `<Router>` component to permit omission for backewards compatibility ([#14646](https://github.com/remix-run/react-router/pull/14646))
500
501- `routeRSCServerRequest` replace `fetchServer` with `serverResponse` ([#14597](https://github.com/remix-run/react-router/pull/14597))
502
503- \[UNSTABLE] Add a new `unstable_defaultShouldRevalidate` flag to various APIs to allow opt-ing out of standard revalidation behaviors. ([#14542](https://github.com/remix-run/react-router/pull/14542))
504
505 If active routes include a `shouldRevalidate` function, then your value will be passed as `defaultShouldRevalidate` in those function so that the route always has the final revalidation determination.
506 - `<Form method="post" unstable_defaultShouldRevalidate={false}>`
507 - `submit(data, { method: "post", unstable_defaultShouldRevalidate: false })`
508 - `<fetcher.Form method="post" unstable_defaultShouldRevalidate={false}>`
509 - `fetcher.submit(data, { method: "post", unstable_defaultShouldRevalidate: false })`
510
511 This is also available on non-submission APIs that may trigger revalidations due to changing search params:
512 - `<Link to="/" unstable_defaultShouldRevalidate={false}>`
513 - `navigate("/?foo=bar", { unstable_defaultShouldRevalidate: false })`
514 - `setSearchParams(params, { unstable_defaultShouldRevalidate: false })`
515
516- Allow redirects to be returned from client side middleware ([#14598](https://github.com/remix-run/react-router/pull/14598))
517
518- Handle `dataStrategy` implementations that return insufficient result sets by adding errors for routes without any available result ([#14627](https://github.com/remix-run/react-router/pull/14627))
519
520## 7.10.1
521
522### Patch Changes
523
524- Update the `useOptimistic` stub we provide for React 18 users to use a stable setter function to avoid potential `useEffect` loops - specifically when using `<Link viewTransition>` ([#14628](https://github.com/remix-run/react-router/pull/14628))
525
526## 7.10.0
527
528### Minor Changes
529
530- Stabilize `fetcher.reset()` ([#14545](https://github.com/remix-run/react-router/pull/14545))
531 - ⚠️ This is a breaking change if you have begun using `fetcher.unstable_reset()`
532
533- Stabilize the `dataStrategy` `match.shouldRevalidateArgs`/`match.shouldCallHandler()` APIs. ([#14592](https://github.com/remix-run/react-router/pull/14592))
534 - The `match.shouldLoad` API is now marked deprecated in favor of these more powerful alternatives
535
536 - If you're using this API in a custom `dataStrategy` today, you can swap to the new API at your convenience:
537
538 ```tsx
539 // Before
540 const matchesToLoad = matches.filter((m) => m.shouldLoad);
541
542 // After
543 const matchesToLoad = matches.filter((m) => m.shouldCallHandler());
544 ```
545
546 - `match.shouldRevalidateArgs` is the argument that will be passed to the route `shouldRevaliate` function
547
548 - Combined with the parameter accepted by `match.shouldCallHandler`, you can define a custom revalidation behavior for your `dataStrategy`:
549
550 ```tsx
551 const matchesToLoad = matches.filter((m) => {
552 const defaultShouldRevalidate = customRevalidationBehavior(
553 match.shouldRevalidateArgs,
554 );
555 return m.shouldCallHandler(defaultShouldRevalidate);
556 // The argument here will override the internal `defaultShouldRevalidate` value
557 });
558 ```
559
560### Patch Changes
561
562- Fix a Framework Mode bug where the `defaultShouldRevalidate` parameter to `shouldRevalidate` would not be correct after `action` returned a 4xx/5xx response (`true` when it should have been `false`) ([#14592](https://github.com/remix-run/react-router/pull/14592))
563 - If your `shouldRevalidate` function relied on that parameter, you may have seen unintended revalidations
564
565- Fix `fetcher.submit` failing with plain objects containing a `tagName` property ([#14534](https://github.com/remix-run/react-router/pull/14534))
566
567- \[UNSTABLE] Add `unstable_pattern` to the parameters for client side `unstable_onError`, refactor how it's called by `RouterProvider` to avoid potential strict mode issues ([#14573](https://github.com/remix-run/react-router/pull/14573))
568
569- Add new `unstable_useTransitions` flag to routers to give users control over the usage of [`React.startTransition`](https://react.dev/reference/react/startTransition) and [`React.useOptimistic`](https://react.dev/reference/react/useOptimistic). ([#14524](https://github.com/remix-run/react-router/pull/14524))
570 - Framework Mode + Data Mode:
571 - `<HydratedRouter unstable_transition>`/`<RouterProvider unstable_transition>`
572 - When left unset (current default behavior)
573 - Router state updates are wrapped in `React.startTransition`
574 - ⚠️ This can lead to buggy behaviors if you are wrapping your own navigations/fetchers in `React.startTransition`
575 - You should set the flag to `true` if you run into this scenario to get the enhanced `useOptimistic` behavior (requires React 19)
576 - When set to `true`
577 - Router state updates remain wrapped in `React.startTransition` (as they are without the flag)
578 - `Link`/`Form` navigations will be wrapped in `React.startTransition`
579 - A subset of router state info will be surfaced to the UI _during_ navigations via `React.useOptimistic` (i.e., `useNavigation()`, `useFetchers()`, etc.)
580 - ⚠️ This is a React 19 API so you must also be React 19 to opt into this flag for Framework/Data Mode
581 - When set to `false`
582 - The router will not leverage `React.startTransition` or `React.useOptimistic` on any navigations or state changes
583 - Declarative Mode
584 - `<BrowserRouter unstable_useTransitions>`
585 - When left unset
586 - Router state updates are wrapped in `React.startTransition`
587 - When set to `true`
588 - Router state updates remain wrapped in `React.startTransition` (as they are without the flag)
589 - `Link`/`Form` navigations will be wrapped in `React.startTransition`
590 - When set to `false`
591 - the router will not leverage `React.startTransition` on any navigations or state changes
592
593- Fix the promise returned from `useNavigate` in Framework/Data Mode so that it properly tracks the duration of `popstate` navigations (i.e., `navigate(-1)`) ([#14524](https://github.com/remix-run/react-router/pull/14524))
594
595- Fix internal type error in useRoute types that surfaces when skipLibCheck is disabled ([#14577](https://github.com/remix-run/react-router/pull/14577))
596
597- Preserve `statusText` on the `ErrorResponse` instance when throwing `data()` from a route handler ([#14555](https://github.com/remix-run/react-router/pull/14555))
598
599- Optimize href() to avoid backtracking regex on splat ([#14329](https://github.com/remix-run/react-router/pull/14329))
600
601## 7.9.6
602
603### Patch Changes
604
605- \[UNSTABLE] Add `location`/`params` as arguments to client-side `unstable_onError` to permit enhanced error reporting. ([#14509](https://github.com/remix-run/react-router/pull/14509))
606
607 ⚠️ This is a breaking change if you've already adopted `unstable_onError`. The second `errorInfo` parameter is now an object with `location` and `params`:
608
609 ```tsx
610 // Before
611 function errorHandler(error: unknown, errorInfo?: React.errorInfo) {
612 /*...*/
613 }
614
615 // After
616 function errorHandler(
617 error: unknown,
618 info: {
619 location: Location;
620 params: Params;
621 errorInfo?: React.ErrorInfo;
622 },
623 ) {
624 /*...*/
625 }
626 ```
627
628- Properly handle ancestor thrown middleware errors before `next()` on fetcher submissions ([#14517](https://github.com/remix-run/react-router/pull/14517))
629
630- Fix issue with splat routes interfering with multiple calls to patchRoutesOnNavigation ([#14487](https://github.com/remix-run/react-router/pull/14487))
631
632- Normalize double-slashes in `resolvePath` ([#14529](https://github.com/remix-run/react-router/pull/14529))
633
634## 7.9.5
635
636### Patch Changes
637
638- Move RSCHydratedRouter and utils to `/dom` export. ([#14457](https://github.com/remix-run/react-router/pull/14457))
639
640- useRoute: return type-safe `handle` ([#14462](https://github.com/remix-run/react-router/pull/14462))
641
642 For example:
643
644 ```ts
645 // app/routes/admin.tsx
646 const handle = { hello: "world" };
647 ```
648
649 ```ts
650 // app/routes/some-other-route.tsx
651 export default function Component() {
652 const admin = useRoute("routes/admin");
653 if (!admin) throw new Error("Not nested within 'routes/admin'");
654 console.log(admin.handle);
655 // ^? { hello: string }
656 }
657 ```
658
659- Ensure action handlers run for routes with middleware even if no loader is present ([#14443](https://github.com/remix-run/react-router/pull/14443))
660
661- Add `unstable_instrumentations` API to allow users to add observablity to their apps by instrumenting route loaders, actions, middlewares, lazy, as well as server-side request handlers and client side navigations/fetches ([#14412](https://github.com/remix-run/react-router/pull/14412))
662 - Framework Mode:
663 - `entry.server.tsx`: `export const unstable_instrumentations = [...]`
664 - `entry.client.tsx`: `<HydratedRouter unstable_instrumentations={[...]} />`
665 - Data Mode
666 - `createBrowserRouter(routes, { unstable_instrumentations: [...] })`
667
668 This also adds a new `unstable_pattern` parameter to loaders/actions/middleware which contains the un-interpolated route pattern (i.e., `/blog/:slug`) which is useful for aggregating performance metrics by route
669
670## 7.9.4
671
672### Patch Changes
673
674- handle external redirects in from server actions ([#14400](https://github.com/remix-run/react-router/pull/14400))
675- New (unstable) `useRoute` hook for accessing data from specific routes ([#14407](https://github.com/remix-run/react-router/pull/14407))
676
677 For example, let's say you have an `admin` route somewhere in your app and you want any child routes of `admin` to all have access to the `loaderData` and `actionData` from `admin.`
678
679 ```tsx
680 // app/routes/admin.tsx
681 import { Outlet } from "react-router";
682
683 export const loader = () => ({ message: "Hello, loader!" });
684
685 export const action = () => ({ count: 1 });
686
687 export default function Component() {
688 return (
689 <div>
690 {/* ... */}
691 <Outlet />
692 {/* ... */}
693 </div>
694 );
695 }
696 ```
697
698 You might even want to create a reusable widget that all of the routes nested under `admin` could use:
699
700 ```tsx
701 import { unstable_useRoute as useRoute } from "react-router";
702
703 export function AdminWidget() {
704 // How to get `message` and `count` from `admin` route?
705 }
706 ```
707
708 In framework mode, `useRoute` knows all your app's routes and gives you TS errors when invalid route IDs are passed in:
709
710 ```tsx
711 export function AdminWidget() {
712 const admin = useRoute("routes/dmin");
713 // ^^^^^^^^^^^
714 }
715 ```
716
717 `useRoute` returns `undefined` if the route is not part of the current page:
718
719 ```tsx
720 export function AdminWidget() {
721 const admin = useRoute("routes/admin");
722 if (!admin) {
723 throw new Error(`AdminWidget used outside of "routes/admin"`);
724 }
725 }
726 ```
727
728 Note: the `root` route is the exception since it is guaranteed to be part of the current page.
729 As a result, `useRoute` never returns `undefined` for `root`.
730
731 `loaderData` and `actionData` are marked as optional since they could be accessed before the `action` is triggered or after the `loader` threw an error:
732
733 ```tsx
734 export function AdminWidget() {
735 const admin = useRoute("routes/admin");
736 if (!admin) {
737 throw new Error(`AdminWidget used outside of "routes/admin"`);
738 }
739 const { loaderData, actionData } = admin;
740 console.log(loaderData);
741 // ^? { message: string } | undefined
742 console.log(actionData);
743 // ^? { count: number } | undefined
744 }
745 ```
746
747 If instead of a specific route, you wanted access to the _current_ route's `loaderData` and `actionData`, you can call `useRoute` without arguments:
748
749 ```tsx
750 export function AdminWidget() {
751 const currentRoute = useRoute();
752 currentRoute.loaderData;
753 currentRoute.actionData;
754 }
755 ```
756
757 This usage is equivalent to calling `useLoaderData` and `useActionData`, but consolidates all route data access into one hook: `useRoute`.
758
759 Note: when calling `useRoute()` (without a route ID), TS has no way to know which route is the current route.
760 As a result, `loaderData` and `actionData` are typed as `unknown`.
761 If you want more type-safety, you can either narrow the type yourself with something like `zod` or you can refactor your app to pass down typed props to your `AdminWidget`:
762
763 ```tsx
764 export function AdminWidget({
765 message,
766 count,
767 }: {
768 message: string;
769 count: number;
770 }) {
771 /* ... */
772 }
773 ```
774
775## 7.9.3
776
777### Patch Changes
778
779- Do not try to use `turbo-stream` to decode CDN errors that never reached the server ([#14385](https://github.com/remix-run/react-router/pull/14385))
780 - We used to do this but lost this check with the adoption of single fetch
781
782- Fix Data Mode regression causing a 404 during initial load in when `middleware` exists without any `loader` functions ([#14393](https://github.com/remix-run/react-router/pull/14393))
783
784## 7.9.2
785
786### Patch Changes
787
788- - Update client-side router to run client `middleware` on initial load even if no loaders exist ([#14348](https://github.com/remix-run/react-router/pull/14348))
789 - Update `createRoutesStub` to run route middleware
790 - You will need to set the `<RoutesStub future={{ v8_middleware: true }} />` flag to enable the proper `context` type
791
792- Update Lazy Route Discovery manifest requests to use a singular comma-separated `paths` query param instead of repeated `p` query params ([#14321](https://github.com/remix-run/react-router/pull/14321))
793 - This is because Cloudflare has a hard limit of 100 URL search param key/value pairs when used as a key for caching purposes
794 - If more that 100 paths were included, the cache key would be incomplete and could produce false-positive cache hits
795
796- \[UNSTABLE] Add `fetcher.unstable_reset()` API ([#14206](https://github.com/remix-run/react-router/pull/14206))
797
798- Made useOutlet element reference have stable identity in-between route chages ([#13382](https://github.com/remix-run/react-router/pull/13382))
799
800- feat: enable full transition support for the rsc router ([#14362](https://github.com/remix-run/react-router/pull/14362))
801
802- In RSC Data Mode, handle SSR'd client errors and re-try in the browser ([#14342](https://github.com/remix-run/react-router/pull/14342))
803
804- Support `middleware` prop on `<Route>` for usage with a data router via `createRoutesFromElements` ([#14357](https://github.com/remix-run/react-router/pull/14357))
805
806- Handle encoded question mark and hash characters in ancestor splat routes ([#14249](https://github.com/remix-run/react-router/pull/14249))
807
808- Fail gracefully on manifest version mismatch logic if `sessionStorage` access is blocked ([#14335](https://github.com/remix-run/react-router/pull/14335))
809
810## 7.9.1
811
812### Patch Changes
813
814- Fix internal `Future` interface naming from `middleware` -> `v8_middleware` ([#14327](https://github.com/remix-run/react-router/pull/14327))
815
816## 7.9.0
817
818### Minor Changes
819
820- Stabilize middleware and context APIs. ([#14215](https://github.com/remix-run/react-router/pull/14215))
821
822 We have removed the `unstable_` prefix from the following APIs and they are now considered stable and ready for production use:
823 - [`RouterContextProvider`](https://reactrouter.com/api/utils/RouterContextProvider)
824 - [`createContext`](https://reactrouter.com/api/utils/createContext)
825 - `createBrowserRouter` [`getContext`](https://reactrouter.com/api/data-routers/createBrowserRouter#optsgetcontext) option
826 - `<HydratedRouter>` [`getContext`](https://reactrouter.com/api/framework-routers/HydratedRouter#getcontext) prop
827
828 Please see the [Middleware Docs](https://reactrouter.com/how-to/middleware), the [Middleware RFC](https://github.com/remix-run/remix/discussions/7642), and the [Client-side Context RFC](https://github.com/remix-run/react-router/discussions/9856) for more information.
829
830### Patch Changes
831
832- Escape HTML in `meta()` JSON-LD content ([#14316](https://github.com/remix-run/react-router/pull/14316))
833- Add react-server Await component implementation ([#14261](https://github.com/remix-run/react-router/pull/14261))
834- In RSC Data Mode when using a custom basename, fix hydration errors for routes that only have client loaders ([#14264](https://github.com/remix-run/react-router/pull/14264))
835- Make `href` function available in a react-server context ([#14262](https://github.com/remix-run/react-router/pull/14262))
836- decode each time `getPayload()` is called to allow for "in-context" decoding and hoisting of contextual assets ([#14248](https://github.com/remix-run/react-router/pull/14248))
837- `href()` now correctly processes routes that have an extension after the parameter or are a single optional parameter. ([#13797](https://github.com/remix-run/react-router/pull/13797))
838
839## 7.8.2
840
841### Patch Changes
842
843- \[UNSTABLE] Remove Data Mode `future.unstable_middleware` flag from `createBrowserRouter` ([#14213](https://github.com/remix-run/react-router/pull/14213))
844 - This is only needed as a Framework Mode flag because of the route modules and the `getLoadContext` type behavior change
845 - In Data Mode, it's an opt-in feature because it's just a new property on a route object, so there's no behavior changes that necessitate a flag
846
847- \[UNSTABLE] Add `<RouterProvider unstable_onError>`/`<HydratedRouter unstable_onError>` prop for client side error reporting ([#14162](https://github.com/remix-run/react-router/pull/14162))
848
849- server action revalidation opt out via $SKIP_REVALIDATION field ([#14154](https://github.com/remix-run/react-router/pull/14154))
850
851- Properly escape interpolated param values in `generatePath()` ([#13530](https://github.com/remix-run/react-router/pull/13530))
852
853- Maintain `ReadonlyMap` and `ReadonlySet` types in server response data. ([#13092](https://github.com/remix-run/react-router/pull/13092))
854
855- \[UNSTABLE] Delay serialization of `.data` redirects to 202 responses until after middleware chain ([#14205](https://github.com/remix-run/react-router/pull/14205))
856
857- Fix `TypeError` if you throw from `patchRoutesOnNavigation` when no partial matches exist ([#14198](https://github.com/remix-run/react-router/pull/14198))
858
859- Fix `basename` usage without a leading slash in data routers ([#11671](https://github.com/remix-run/react-router/pull/11671))
860
861- \[UNSTABLE] Update client middleware so it returns the data strategy results allowing for more advanced post-processing middleware ([#14151](https://github.com/remix-run/react-router/pull/14151))
862
863## 7.8.1
864
865### Patch Changes
866
867- Fix usage of optional path segments in nested routes defined using absolute paths ([#14135](https://github.com/remix-run/react-router/pull/14135))
868- Bubble client pre-next middleware error to the shallowest ancestor that needs to load, not strictly the shallowest ancestor with a loader ([#14150](https://github.com/remix-run/react-router/pull/14150))
869- Fix optional static segment matching in `matchPath` ([#11813](https://github.com/remix-run/react-router/pull/11813))
870- Fix prerendering when a `basename` is set with `ssr:false` ([#13791](https://github.com/remix-run/react-router/pull/13791))
871- Provide `isRouteErrorResponse` utility in `react-server` environments ([#14166](https://github.com/remix-run/react-router/pull/14166))
872- Propagate non-redirect Responses thrown from middleware to the error boundary on document/data requests ([#14182](https://github.com/remix-run/react-router/pull/14182))
873- Handle `meta` and `links` Route Exports in RSC Data Mode ([#14136](https://github.com/remix-run/react-router/pull/14136))
874- Properly convert returned/thrown `data()` values to `Response` instances via `Response.json()` in resource routes and middleware ([#14159](https://github.com/remix-run/react-router/pull/14159), [#14181](https://github.com/remix-run/react-router/pull/14181))
875
876## 7.8.0
877
878### Minor Changes
879
880- Add `nonce` prop to `Links` & `PrefetchPageLinks` ([#14048](https://github.com/remix-run/react-router/pull/14048))
881- Add `loaderData` arguments/properties alongside existing `data` arguments/properties to provide consistency and clarity between `loaderData` and `actionData` across the board ([#14047](https://github.com/remix-run/react-router/pull/14047))
882 - Updated types: `Route.MetaArgs`, `Route.MetaMatch`, `MetaArgs`, `MetaMatch`, `Route.ComponentProps.matches`, `UIMatch`
883 - `@deprecated` warnings have been added to the existing `data` properties to point users to new `loaderData` properties, in preparation for removing the `data` properties in a future major release
884
885### Patch Changes
886
887- Prevent _"Did not find corresponding fetcher result"_ console error when navigating during a `fetcher.submit` revalidation ([#14114](https://github.com/remix-run/react-router/pull/14114))
888
889- Bubble client-side middleware errors prior to `next` to the appropriate ancestor error boundary ([#14138](https://github.com/remix-run/react-router/pull/14138))
890
891- Switch Lazy Route Discovery manifest URL generation to usea standalone `URLSearchParams` instance instead of `URL.searchParams` to avoid a major performance bottleneck in Chrome ([#14084](https://github.com/remix-run/react-router/pull/14084))
892
893- Adjust internal RSC usage of `React.use` to avoid Webpack compilation errors when using React 18 ([#14113](https://github.com/remix-run/react-router/pull/14113))
894
895- Remove dependency on `@types/node` in TypeScript declaration files ([#14059](https://github.com/remix-run/react-router/pull/14059))
896
897- Fix types for `UIMatch` to reflect that the `loaderData`/`data` properties may be `undefined` ([#12206](https://github.com/remix-run/react-router/pull/12206))
898 - When an `ErrorBoundary` is being rendered, not all active matches will have loader data available, since it may have been their `loader` that threw to trigger the boundary
899 - The `UIMatch.data` type was not correctly handing this and would always reflect the presence of data, leading to the unexpected runtime errors when an `ErrorBoundary` was rendered
900 - ⚠️ This may cause some type errors to show up in your code for unguarded `match.data` accesses - you should properly guard for `undefined` values in those scenarios.
901
902 ```tsx
903 // app/root.tsx
904 export function loader() {
905 someFunctionThatThrows(); // ❌ Throws an Error
906 return { title: "My Title" };
907 }
908
909 export function Layout({ children }: { children: React.ReactNode }) {
910 let matches = useMatches();
911 let rootMatch = matches[0] as UIMatch<Awaited<ReturnType<typeof loader>>>;
912 // ^ rootMatch.data is incorrectly typed here, so TypeScript does not
913 // complain if you do the following which throws an error at runtime:
914 let { title } = rootMatch.data; // 💥
915
916 return <html>...</html>;
917 }
918 ```
919
920- \[UNSTABLE] Ensure resource route errors go through `handleError` w/middleware enabled ([#14078](https://github.com/remix-run/react-router/pull/14078))
921
922- \[UNSTABLE] Propagate returned Response from server middleware if next wasn't called ([#14093](https://github.com/remix-run/react-router/pull/14093))
923
924- \[UNSTABLE] Allow server middlewares to return `data()` values which will be converted into a `Response` ([#14093](https://github.com/remix-run/react-router/pull/14093))
925
926- \[UNSTABLE] Update middleware error handling so that the `next` function never throws and instead handles any middleware errors at the proper `ErrorBoundary` and returns the `Response` up through the ancestor `next` function ([#14118](https://github.com/remix-run/react-router/pull/14118))
927
928- \[UNSTABLE] When middleware is enabled, make the `context` parameter read-only (via `Readonly<unstable_RouterContextProvider>`) so that TypeScript will not allow you to write arbitrary fields to it in loaders, actions, or middleware. ([#14097](https://github.com/remix-run/react-router/pull/14097))
929
930- \[UNSTABLE] Rename and alter the signature/functionality of the `unstable_respond` API in `staticHandler.query`/`staticHandler.queryRoute` ([#14103](https://github.com/remix-run/react-router/pull/14103))
931 - The API has been renamed to `unstable_generateMiddlewareResponse` for clarity
932 - The main functional change is that instead of running the loaders/actions before calling `unstable_respond` and handing you the result, we now pass a `query`/`queryRoute` function as a parameter and you execute the loaders/actions inside your callback, giving you full access to pre-processing and error handling
933 - The `query` version of the API now has a signature of `(query: (r: Request) => Promise<StaticHandlerContext | Response>) => Promise<Response>`
934 - The `queryRoute` version of the API now has a signature of `(queryRoute: (r: Request) => Promise<Response>) => Promise<Response>`
935 - This allows for more advanced usages such as running logic before/after calling `query` and direct error handling of errors thrown from query
936 - ⚠️ This is a breaking change if you've adopted the `staticHandler` `unstable_respond` API
937
938 ```tsx
939 let response = await staticHandler.query(request, {
940 requestContext: new unstable_RouterContextProvider(),
941 async unstable_generateMiddlewareResponse(query) {
942 try {
943 // At this point we've run middleware top-down so we need to call the
944 // handlers and generate the Response to bubble back up the middleware
945 let result = await query(request);
946 if (isResponse(result)) {
947 return result; // Redirects, etc.
948 }
949 return await generateHtmlResponse(result);
950 } catch (error: unknown) {
951 return generateErrorResponse(error);
952 }
953 },
954 });
955 ```
956
957- \[UNSTABLE] Convert internal middleware implementations to use the new `unstable_generateMiddlewareResponse` API ([#14103](https://github.com/remix-run/react-router/pull/14103))
958
959- \[UNSTABLE] Change `getLoadContext` signature (`type GetLoadContextFunction`) when `future.unstable_middleware` is enabled so that it returns an `unstable_RouterContextProvider` instance instead of a `Map` used to contruct the instance internally ([#14097](https://github.com/remix-run/react-router/pull/14097))
960 - This also removes the `type unstable_InitialContext` export
961 - ⚠️ This is a breaking change if you have adopted middleware and are using a custom server with a `getLoadContext` function
962
963- \[UNSTABLE] Run client middleware on client navigations even if no loaders exist ([#14106](https://github.com/remix-run/react-router/pull/14106))
964
965- \[UNSTABLE] Change the `unstable_getContext` signature on `RouterProvider`/`HydratedRouter`/`unstable_RSCHydratedRouter` so that it returns an `unstable_RouterContextProvider` instance instead of a `Map` used to contruct the instance internally ([#14097](https://github.com/remix-run/react-router/pull/14097))
966 - ⚠️ This is a breaking change if you have adopted the `unstable_getContext` prop
967
968- \[UNSTABLE] proxy server action side-effect redirects from actions for document and callServer requests ([#14131](https://github.com/remix-run/react-router/pull/14131))
969
970- \[UNSTABLE] Fix RSC Data Mode issue where routes that return `false` from `shouldRevalidate` would be replaced by an `<Outlet />` ([#14071](https://github.com/remix-run/react-router/pull/14071))
971
972## 7.7.1
973
974### Patch Changes
975
976- In RSC Data Mode, fix bug where routes with errors weren't forced to revalidate when `shouldRevalidate` returned false ([#14026](https://github.com/remix-run/react-router/pull/14026))
977- In RSC Data Mode, fix `Matched leaf route at location "/..." does not have an element or Component` warnings when error boundaries are rendered. ([#14021](https://github.com/remix-run/react-router/pull/14021))
978
979## 7.7.0
980
981### Minor Changes
982
983- Add unstable RSC support ([#13700](https://github.com/remix-run/react-router/pull/13700))
984
985 For more information, see the [RSC documentation](https://reactrouter.com/start/rsc/installation).
986
987### Patch Changes
988
989- Handle `InvalidCharacterError` when validating cookie signature ([#13847](https://github.com/remix-run/react-router/pull/13847))
990
991- Pass a copy of `searchParams` to the `setSearchParams` callback function to avoid muations of the internal `searchParams` instance. This was an issue when navigations were blocked because the internal instance be out of sync with `useLocation().search`. ([#12784](https://github.com/remix-run/react-router/pull/12784))
992
993- Support invalid `Date` in `turbo-stream` v2 fork ([#13684](https://github.com/remix-run/react-router/pull/13684))
994
995- In Framework Mode, clear critical CSS in development after initial render ([#13872](https://github.com/remix-run/react-router/pull/13872))
996
997- Strip search parameters from `patchRoutesOnNavigation` `path` param for fetcher calls ([#13911](https://github.com/remix-run/react-router/pull/13911))
998
999- Skip scroll restoration on useRevalidator() calls because they're not new locations ([#13671](https://github.com/remix-run/react-router/pull/13671))
1000
1001- Support unencoded UTF-8 routes in prerender config with `ssr` set to `false` ([#13699](https://github.com/remix-run/react-router/pull/13699))
1002
1003- Do not throw if the url hash is not a valid URI component ([#13247](https://github.com/remix-run/react-router/pull/13247))
1004
1005- Fix a regression in `createRoutesStub` introduced with the middleware feature. ([#13946](https://github.com/remix-run/react-router/pull/13946))
1006
1007 As part of that work we altered the signature to align with the new middleware APIs without making it backwards compatible with the prior `AppLoadContext` API. This permitted `createRoutesStub` to work if you were opting into middleware and the updated `context` typings, but broke `createRoutesStub` for users not yet opting into middleware.
1008
1009 We've reverted this change and re-implemented it in such a way that both sets of users can leverage it.
1010
1011 ```tsx
1012 // If you have not opted into middleware, the old API should work again
1013 let context: AppLoadContext = {
1014 /*...*/
1015 };
1016 let Stub = createRoutesStub(routes, context);
1017
1018 // If you have opted into middleware, you should now pass an instantiated `unstable_routerContextProvider` instead of a `getContext` factory function.
1019 let context = new unstable_RouterContextProvider();
1020 context.set(SomeContext, someValue);
1021 let Stub = createRoutesStub(routes, context);
1022 ```
1023
1024 ⚠️ This may be a breaking bug for if you have adopted the unstable Middleware feature and are using `createRoutesStub` with the updated API.
1025
1026- Remove `Content-Length` header from Single Fetch responses ([#13902](https://github.com/remix-run/react-router/pull/13902))
1027
1028## 7.6.3
1029
1030### Patch Changes
1031
1032- Do not serialize types for `useRouteLoaderData<typeof clientLoader>` ([#13752](https://github.com/remix-run/react-router/pull/13752))
1033
1034 For types to distinguish a `clientLoader` from a `serverLoader`, you MUST annotate `clientLoader` args:
1035
1036 ```ts
1037 // 👇 annotation required to skip serializing types
1038 export function clientLoader({}: Route.ClientLoaderArgs) {
1039 return { fn: () => "earth" };
1040 }
1041
1042 function SomeComponent() {
1043 const data = useRouteLoaderData<typeof clientLoader>("routes/this-route");
1044 const planet = data?.fn() ?? "world";
1045 return <h1>Hello, {planet}!</h1>;
1046 }
1047 ```
1048
1049## 7.6.2
1050
1051### Patch Changes
1052
1053- Avoid additional `with-props` chunk in Framework Mode by moving route module component prop logic from the Vite plugin to `react-router` ([#13650](https://github.com/remix-run/react-router/pull/13650))
1054- Slight refactor of internal `headers()` function processing for use with RSC ([#13639](https://github.com/remix-run/react-router/pull/13639))
1055
1056## 7.6.1
1057
1058### Patch Changes
1059
1060- Update `Route.MetaArgs` to reflect that `data` can be potentially `undefined` ([#13563](https://github.com/remix-run/react-router/pull/13563))
1061
1062 This is primarily for cases where a route `loader` threw an error to it's own `ErrorBoundary`. but it also arises in the case of a 404 which renders the root `ErrorBoundary`/`meta` but the root loader did not run because not routes matched.
1063
1064- Partially revert optimization added in `7.1.4` to reduce calls to `matchRoutes` because it surfaced other issues ([#13562](https://github.com/remix-run/react-router/pull/13562))
1065
1066- Fix typegen when same route is used at multiple paths ([#13574](https://github.com/remix-run/react-router/pull/13574))
1067
1068 For example, `routes/route.tsx` is used at 4 different paths here:
1069
1070 ```ts
1071 import { type RouteConfig, route } from "@react-router/dev/routes";
1072 export default [
1073 route("base/:base", "routes/base.tsx", [
1074 route("home/:home", "routes/route.tsx", { id: "home" }),
1075 route("changelog/:changelog", "routes/route.tsx", { id: "changelog" }),
1076 route("splat/*", "routes/route.tsx", { id: "splat" }),
1077 ]),
1078 route("other/:other", "routes/route.tsx", { id: "other" }),
1079 ] satisfies RouteConfig;
1080 ```
1081
1082 Previously, typegen would arbitrarily pick one of these paths to be the "winner" and generate types for the route module based on that path.
1083 Now, typegen creates unions as necessary for alternate paths for the same route file.
1084
1085- Better types for `params` ([#13543](https://github.com/remix-run/react-router/pull/13543))
1086
1087 For example:
1088
1089 ```ts
1090 // routes.ts
1091 import { type RouteConfig, route } from "@react-router/dev/routes";
1092
1093 export default [
1094 route("parent/:p", "routes/parent.tsx", [
1095 route("layout/:l", "routes/layout.tsx", [
1096 route("child1/:c1a/:c1b", "routes/child1.tsx"),
1097 route("child2/:c2a/:c2b", "routes/child2.tsx"),
1098 ]),
1099 ]),
1100 ] satisfies RouteConfig;
1101 ```
1102
1103 Previously, `params` for the `routes/layout.tsx` route were calculated as `{ p: string, l: string }`.
1104 This incorrectly ignores params that could come from child routes.
1105 If visiting `/parent/1/layout/2/child1/3/4`, the actual params passed to `routes/layout.tsx` will have a type of `{ p: string, l: string, c1a: string, c1b: string }`.
1106
1107 Now, `params` are aware of child routes and autocompletion will include child params as optionals:
1108
1109 ```ts
1110 params.|
1111 // ^ cursor is here and you ask for autocompletion
1112 // p: string
1113 // l: string
1114 // c1a?: string
1115 // c1b?: string
1116 // c2a?: string
1117 // c2b?: string
1118 ```
1119
1120 You can also narrow the types for `params` as it is implemented as a normalized union of params for each page that includes `routes/layout.tsx`:
1121
1122 ```ts
1123 if (typeof params.c1a === 'string') {
1124 params.|
1125 // ^ cursor is here and you ask for autocompletion
1126 // p: string
1127 // l: string
1128 // c1a: string
1129 // c1b: string
1130 }
1131 ```
1132
1133 ***
1134
1135 UNSTABLE: renamed internal `react-router/route-module` export to `react-router/internal`
1136 UNSTABLE: removed `Info` export from generated `+types/*` files
1137
1138- Avoid initial fetcher execution 404 error when Lazy Route Discovery is interrupted by a navigation ([#13564](https://github.com/remix-run/react-router/pull/13564))
1139
1140- href replaces splats `*` ([#13593](https://github.com/remix-run/react-router/pull/13593))
1141
1142 ```ts
1143 const a = href("/products/*", { "*": "/1/edit" });
1144 // -> /products/1/edit
1145 ```
1146
1147## 7.6.0
1148
1149### Minor Changes
1150
1151- Added a new `react-router.config.ts` `routeDiscovery` option to configure Lazy Route Discovery behavior. ([#13451](https://github.com/remix-run/react-router/pull/13451))
1152 - By default, Lazy Route Discovery is enabled and makes manifest requests to the `/__manifest` path:
1153 - `routeDiscovery: { mode: "lazy", manifestPath: "/__manifest" }`
1154 - You can modify the manifest path used:
1155 - `routeDiscovery: { mode: "lazy", manifestPath: "/custom-manifest" }`
1156 - Or you can disable this feature entirely and include all routes in the manifest on initial document load:
1157 - `routeDiscovery: { mode: "initial" }`
1158
1159- Add support for route component props in `createRoutesStub`. This allows you to unit test your route components using the props instead of the hooks: ([#13528](https://github.com/remix-run/react-router/pull/13528))
1160
1161 ```tsx
1162 let RoutesStub = createRoutesStub([
1163 {
1164 path: "/",
1165 Component({ loaderData }) {
1166 let data = loaderData as { message: string };
1167 return <pre data-testid="data">Message: {data.message}</pre>;
1168 },
1169 loader() {
1170 return { message: "hello" };
1171 },
1172 },
1173 ]);
1174
1175 render(<RoutesStub />);
1176
1177 await waitFor(() => screen.findByText("Message: hello"));
1178 ```
1179
1180### Patch Changes
1181
1182- Fix `react-router` module augmentation for `NodeNext` ([#13498](https://github.com/remix-run/react-router/pull/13498))
1183
1184- Don't bundle `react-router` in `react-router/dom` CJS export ([#13497](https://github.com/remix-run/react-router/pull/13497))
1185
1186- Fix bug where a submitting `fetcher` would get stuck in a `loading` state if a revalidating `loader` redirected ([#12873](https://github.com/remix-run/react-router/pull/12873))
1187
1188- Fix hydration error if a server `loader` returned `undefined` ([#13496](https://github.com/remix-run/react-router/pull/13496))
1189
1190- Fix initial load 404 scenarios in data mode ([#13500](https://github.com/remix-run/react-router/pull/13500))
1191
1192- Stabilize `useRevalidator`'s `revalidate` function ([#13542](https://github.com/remix-run/react-router/pull/13542))
1193
1194- Preserve status code if a `clientAction` throws a `data()` result in framework mode ([#13522](https://github.com/remix-run/react-router/pull/13522))
1195
1196- Be defensive against leading double slashes in paths to avoid `Invalid URL` errors from the URL constructor ([#13510](https://github.com/remix-run/react-router/pull/13510))
1197 - Note we do not sanitize/normalize these paths - we only detect them so we can avoid the error that would be thrown by `new URL("//", window.location.origin)`
1198
1199- Remove `Navigator` declaration for `navigator.connection.saveData` to avoid messing with any other types beyond `saveData` in userland ([#13512](https://github.com/remix-run/react-router/pull/13512))
1200
1201- Fix `handleError` `params` values on `.data` requests for routes with a dynamic param as the last URL segment ([#13481](https://github.com/remix-run/react-router/pull/13481))
1202
1203- Don't trigger an `ErrorBoundary` UI before the reload when we detect a manifest verison mismatch in Lazy Route Discovery ([#13480](https://github.com/remix-run/react-router/pull/13480))
1204
1205- Inline `turbo-stream@2.4.1` dependency and fix decoding ordering of Map/Set instances ([#13518](https://github.com/remix-run/react-router/pull/13518))
1206
1207- Only render dev warnings in DEV mode ([#13461](https://github.com/remix-run/react-router/pull/13461))
1208
1209- UNSTABLE: Fix a few bugs with error bubbling in middleware use-cases ([#13538](https://github.com/remix-run/react-router/pull/13538))
1210
1211- Short circuit post-processing on aborted `dataStrategy` requests ([#13521](https://github.com/remix-run/react-router/pull/13521))
1212 - This resolves non-user-facing console errors of the form `Cannot read properties of undefined (reading 'result')`
1213
1214## 7.5.3
1215
1216### Patch Changes
1217
1218- Fix bug where bubbled action errors would result in `loaderData` being cleared at the handling `ErrorBoundary` route ([#13476](https://github.com/remix-run/react-router/pull/13476))
1219- Handle redirects from `clientLoader.hydrate` initial load executions ([#13477](https://github.com/remix-run/react-router/pull/13477))
1220
1221## 7.5.2
1222
1223### Patch Changes
1224
1225- Update Single Fetch to also handle the 204 redirects used in `?_data` requests in Remix v2 ([#13364](https://github.com/remix-run/react-router/pull/13364))
1226 - This allows applications to return a redirect on `.data` requests from outside the scope of React Router (i.e., an `express`/`hono` middleware)
1227 - ⚠️ Please note that doing so relies on implementation details that are subject to change without a SemVer major release
1228 - This is primarily done to ease upgrading to Single Fetch for existing Remix v2 applications, but the recommended way to handle this is redirecting from a route middleware
1229
1230- Adjust approach for Prerendering/SPA Mode via headers ([#13453](https://github.com/remix-run/react-router/pull/13453))
1231
1232## 7.5.1
1233
1234### Patch Changes
1235
1236- Fix single fetch bug where no revalidation request would be made when navigating upwards to a reused parent route ([#13253](https://github.com/remix-run/react-router/pull/13253))
1237
1238- When using the object-based `route.lazy` API, the `HydrateFallback` and `hydrateFallbackElement` properties are now skipped when lazy loading routes after hydration. ([#13376](https://github.com/remix-run/react-router/pull/13376))
1239
1240 If you move the code for these properties into a separate file, you can use this optimization to avoid downloading unused hydration code. For example:
1241
1242 ```ts
1243 createBrowserRouter([
1244 {
1245 path: "/show/:showId",
1246 lazy: {
1247 loader: async () => (await import("./show.loader.js")).loader,
1248 Component: async () => (await import("./show.component.js")).Component,
1249 HydrateFallback: async () =>
1250 (await import("./show.hydrate-fallback.js")).HydrateFallback,
1251 },
1252 },
1253 ]);
1254 ```
1255
1256- Properly revalidate prerendered paths when param values change ([#13380](https://github.com/remix-run/react-router/pull/13380))
1257
1258- UNSTABLE: Add a new `unstable_runClientMiddleware` argument to `dataStrategy` to enable middleware execution in custom `dataStrategy` implementations ([#13395](https://github.com/remix-run/react-router/pull/13395))
1259
1260- UNSTABLE: Add better error messaging when `getLoadContext` is not updated to return a `Map`" ([#13242](https://github.com/remix-run/react-router/pull/13242))
1261
1262- Do not automatically add `null` to `staticHandler.query()` `context.loaderData` if routes do not have loaders ([#13223](https://github.com/remix-run/react-router/pull/13223))
1263 - This was a Remix v2 implementation detail inadvertently left in for React Router v7
1264 - Now that we allow returning `undefined` from loaders, our prior check of `loaderData[routeId] !== undefined` was no longer sufficient and was changed to a `routeId in loaderData` check - these `null` values can cause issues for this new check
1265 - ⚠️ This could be a "breaking bug fix" for you if you are doing manual SSR with `createStaticHandler()`/`<StaticRouterProvider>`, and using `context.loaderData` to control `<RouterProvider>` hydration behavior on the client
1266
1267- Fix prerendering when a loader returns a redirect ([#13365](https://github.com/remix-run/react-router/pull/13365))
1268
1269- UNSTABLE: Update context type for `LoaderFunctionArgs`/`ActionFunctionArgs` when middleware is enabled ([#13381](https://github.com/remix-run/react-router/pull/13381))
1270
1271- Add support for the new `unstable_shouldCallHandler`/`unstable_shouldRevalidateArgs` APIs in `dataStrategy` ([#13253](https://github.com/remix-run/react-router/pull/13253))
1272
1273## 7.5.0
1274
1275### Minor Changes
1276
1277- Add granular object-based API for `route.lazy` to support lazy loading of individual route properties, for example: ([#13294](https://github.com/remix-run/react-router/pull/13294))
1278
1279 ```ts
1280 createBrowserRouter([
1281 {
1282 path: "/show/:showId",
1283 lazy: {
1284 loader: async () => (await import("./show.loader.js")).loader,
1285 action: async () => (await import("./show.action.js")).action,
1286 Component: async () => (await import("./show.component.js")).Component,
1287 },
1288 },
1289 ]);
1290 ```
1291
1292 **Breaking change for `route.unstable_lazyMiddleware` consumers**
1293
1294 The `route.unstable_lazyMiddleware` property is no longer supported. If you want to lazily load middleware, you must use the new object-based `route.lazy` API with `route.lazy.unstable_middleware`, for example:
1295
1296 ```ts
1297 createBrowserRouter([
1298 {
1299 path: "/show/:showId",
1300 lazy: {
1301 unstable_middleware: async () =>
1302 (await import("./show.middleware.js")).middleware,
1303 // etc.
1304 },
1305 },
1306 ]);
1307 ```
1308
1309### Patch Changes
1310
1311- Introduce `unstable_subResourceIntegrity` future flag that enables generation of an importmap with integrity for the scripts that will be loaded by the browser. ([#13163](https://github.com/remix-run/react-router/pull/13163))
1312
1313## 7.4.1
1314
1315### Patch Changes
1316
1317- Fix types on `unstable_MiddlewareFunction` to avoid type errors when a middleware doesn't return a value ([#13311](https://github.com/remix-run/react-router/pull/13311))
1318- Dedupe calls to `route.lazy` functions ([#13260](https://github.com/remix-run/react-router/pull/13260))
1319- Add support for `route.unstable_lazyMiddleware` function to allow lazy loading of middleware logic. ([#13210](https://github.com/remix-run/react-router/pull/13210))
1320
1321 **Breaking change for `unstable_middleware` consumers**
1322
1323 The `route.unstable_middleware` property is no longer supported in the return value from `route.lazy`. If you want to lazily load middleware, you must use `route.unstable_lazyMiddleware`.
1324
1325## 7.4.0
1326
1327### Patch Changes
1328
1329- Fix root loader data on initial load redirects in SPA mode ([#13222](https://github.com/remix-run/react-router/pull/13222))
1330- Load ancestor pathless/index routes in lazy route discovery for upwards non-eager-discoery routing ([#13203](https://github.com/remix-run/react-router/pull/13203))
1331- Fix `shouldRevalidate` behavior for `clientLoader`-only routes in `ssr:true` apps ([#13221](https://github.com/remix-run/react-router/pull/13221))
1332- UNSTABLE: Fix `RequestHandler` `loadContext` parameter type when middleware is enabled ([#13204](https://github.com/remix-run/react-router/pull/13204))
1333- UNSTABLE: Update `Route.unstable_MiddlewareFunction` to have a return value of `Response | undefined` instead of `Response | void` becaue you should not return anything if you aren't returning the `Response` ([#13199](https://github.com/remix-run/react-router/pull/13199))
1334- UNSTABLE(BREAKING): If a middleware throws an error, ensure we only bubble the error itself via `next()` and are no longer leaking the `MiddlewareError` implementation detail ([#13180](https://github.com/remix-run/react-router/pull/13180))
1335
1336## 7.3.0
1337
1338### Minor Changes
1339
1340- Add `fetcherKey` as a parameter to `patchRoutesOnNavigation` ([#13061](https://github.com/remix-run/react-router/pull/13061))
1341 - In framework mode, Lazy Route Discovery will now detect manifest version mismatches after a new deploy
1342 - On navigations to undiscovered routes, this mismatch will trigger a document reload of the destination path
1343 - On `fetcher` calls to undiscovered routes, this mismatch will trigger a document reload of the current path
1344
1345### Patch Changes
1346
1347- Skip resource route flow in dev server in SPA mode ([#13113](https://github.com/remix-run/react-router/pull/13113))
1348
1349- Support middleware on routes (unstable) ([#12941](https://github.com/remix-run/react-router/pull/12941))
1350
1351 Middleware is implemented behind a `future.unstable_middleware` flag. To enable, you must enable the flag and the types in your `react-router-config.ts` file:
1352
1353 ```ts
1354 import type { Config } from "@react-router/dev/config";
1355 import type { Future } from "react-router";
1356
1357 declare module "react-router" {
1358 interface Future {
1359 unstable_middleware: true; // 👈 Enable middleware types
1360 }
1361 }
1362
1363 export default {
1364 future: {
1365 unstable_middleware: true, // 👈 Enable middleware
1366 },
1367 } satisfies Config;
1368 ```
1369
1370 ⚠️ Middleware is unstable and should not be adopted in production. There is at least one known de-optimization in route module loading for `clientMiddleware` that we will be addressing this before a stable release.
1371
1372 ⚠️ Enabling middleware contains a breaking change to the `context` parameter passed to your `loader`/`action` functions - see below for more information.
1373
1374 Once enabled, routes can define an array of middleware functions that will run sequentially before route handlers run. These functions accept the same parameters as `loader`/`action` plus an additional `next` parameter to run the remaining data pipeline. This allows middlewares to perform logic before and after handlers execute.
1375
1376 ```tsx
1377 // Framework mode
1378 export const unstable_middleware = [serverLogger, serverAuth]; // server
1379 export const unstable_clientMiddleware = [clientLogger]; // client
1380
1381 // Library mode
1382 const routes = [
1383 {
1384 path: "/",
1385 // Middlewares are client-side for library mode SPA's
1386 unstable_middleware: [clientLogger, clientAuth],
1387 loader: rootLoader,
1388 Component: Root,
1389 },
1390 ];
1391 ```
1392
1393 Here's a simple example of a client-side logging middleware that can be placed on the root route:
1394
1395 ```tsx
1396 const clientLogger: Route.unstable_ClientMiddlewareFunction = async (
1397 { request },
1398 next,
1399 ) => {
1400 let start = performance.now();
1401
1402 // Run the remaining middlewares and all route loaders
1403 await next();
1404
1405 let duration = performance.now() - start;
1406 console.log(`Navigated to ${request.url} (${duration}ms)`);
1407 };
1408 ```
1409
1410 Note that in the above example, the `next`/`middleware` functions don't return anything. This is by design as on the client there is no "response" to send over the network like there would be for middlewares running on the server. The data is all handled behind the scenes by the stateful `router`.
1411
1412 For a server-side middleware, the `next` function will return the HTTP `Response` that React Router will be sending across the wire, thus giving you a chance to make changes as needed. You may throw a new response to short circuit and respond immediately, or you may return a new or altered response to override the default returned by `next()`.
1413
1414 ```tsx
1415 const serverLogger: Route.unstable_MiddlewareFunction = async (
1416 { request, params, context },
1417 next,
1418 ) => {
1419 let start = performance.now();
1420
1421 // 👇 Grab the response here
1422 let res = await next();
1423
1424 let duration = performance.now() - start;
1425 console.log(`Navigated to ${request.url} (${duration}ms)`);
1426
1427 // 👇 And return it here (optional if you don't modify the response)
1428 return res;
1429 };
1430 ```
1431
1432 You can throw a `redirect` from a middleware to short circuit any remaining processing:
1433
1434 ```tsx
1435 import { sessionContext } from "../context";
1436 const serverAuth: Route.unstable_MiddlewareFunction = (
1437 { request, params, context },
1438 next,
1439 ) => {
1440 let session = context.get(sessionContext);
1441 let user = session.get("user");
1442 if (!user) {
1443 session.set("returnTo", request.url);
1444 throw redirect("/login", 302);
1445 }
1446 };
1447 ```
1448
1449 _Note that in cases like this where you don't need to do any post-processing you don't need to call the `next` function or return a `Response`._
1450
1451 Here's another example of using a server middleware to detect 404s and check the CMS for a redirect:
1452
1453 ```tsx
1454 const redirects: Route.unstable_MiddlewareFunction = async ({
1455 request,
1456 next,
1457 }) => {
1458 // attempt to handle the request
1459 let res = await next();
1460
1461 // if it's a 404, check the CMS for a redirect, do it last
1462 // because it's expensive
1463 if (res.status === 404) {
1464 let cmsRedirect = await checkCMSRedirects(request.url);
1465 if (cmsRedirect) {
1466 throw redirect(cmsRedirect, 302);
1467 }
1468 }
1469
1470 return res;
1471 };
1472 ```
1473
1474 **`context` parameter**
1475
1476 When middleware is enabled, your application will use a different type of `context` parameter in your loaders and actions to provide better type safety. Instead of `AppLoadContext`, `context` will now be an instance of `ContextProvider` that you can use with type-safe contexts (similar to `React.createContext`):
1477
1478 ```ts
1479 import { unstable_createContext } from "react-router";
1480 import { Route } from "./+types/root";
1481 import type { Session } from "./sessions.server";
1482 import { getSession } from "./sessions.server";
1483
1484 let sessionContext = unstable_createContext<Session>();
1485
1486 const sessionMiddleware: Route.unstable_MiddlewareFunction = ({
1487 context,
1488 request,
1489 }) => {
1490 let session = await getSession(request);
1491 context.set(sessionContext, session);
1492 // ^ must be of type Session
1493 };
1494
1495 // ... then in some downstream middleware
1496 const loggerMiddleware: Route.unstable_MiddlewareFunction = ({
1497 context,
1498 request,
1499 }) => {
1500 let session = context.get(sessionContext);
1501 // ^ typeof Session
1502 console.log(session.get("userId"), request.method, request.url);
1503 };
1504
1505 // ... or some downstream loader
1506 export function loader({ context }: Route.LoaderArgs) {
1507 let session = context.get(sessionContext);
1508 let profile = await getProfile(session.get("userId"));
1509 return { profile };
1510 }
1511 ```
1512
1513 If you are using a custom server with a `getLoadContext` function, the return value for initial context values passed from the server adapter layer is no longer an object and should now return an `unstable_InitialContext` (`Map<RouterContext, unknown>`):
1514
1515 ```ts
1516 let adapterContext = unstable_createContext<MyAdapterContext>();
1517
1518 function getLoadContext(req, res): unstable_InitialContext {
1519 let map = new Map();
1520 map.set(adapterContext, getAdapterContext(req));
1521 return map;
1522 }
1523 ```
1524
1525- Fix types for loaderData and actionData that contained `Record`s ([#13139](https://github.com/remix-run/react-router/pull/13139))
1526
1527 UNSTABLE(BREAKING):
1528
1529 `unstable_SerializesTo` added a way to register custom serialization types in Single Fetch for other library and framework authors like Apollo.
1530 It was implemented with branded type whose branded property that was made optional so that casting arbitrary values was easy:
1531
1532 ```ts
1533 // without the brand being marked as optional
1534 let x1 = 42 as unknown as unstable_SerializesTo<number>;
1535 // ^^^^^^^^^^
1536
1537 // with the brand being marked as optional
1538 let x2 = 42 as unstable_SerializesTo<number>;
1539 ```
1540
1541 However, this broke type inference in `loaderData` and `actionData` for any `Record` types as those would now (incorrectly) match `unstable_SerializesTo`.
1542 This affected all users, not just those that depended on `unstable_SerializesTo`.
1543 To fix this, the branded property of `unstable_SerializesTo` is marked as required instead of optional.
1544
1545 For library and framework authors using `unstable_SerializesTo`, you may need to add `as unknown` casts before casting to `unstable_SerializesTo`.
1546
1547- Fix single fetch `_root.data` requests when a `basename` is used ([#12898](https://github.com/remix-run/react-router/pull/12898))
1548
1549- Add `context` support to client side data routers (unstable) ([#12941](https://github.com/remix-run/react-router/pull/12941))
1550
1551 Your application `loader` and `action` functions on the client will now receive a `context` parameter. This is an instance of `unstable_RouterContextProvider` that you use with type-safe contexts (similar to `React.createContext`) and is most useful with the corresponding `middleware`/`clientMiddleware` API's:
1552
1553 ```ts
1554 import { unstable_createContext } from "react-router";
1555
1556 type User = {
1557 /*...*/
1558 };
1559
1560 let userContext = unstable_createContext<User>();
1561
1562 function sessionMiddleware({ context }) {
1563 let user = await getUser();
1564 context.set(userContext, user);
1565 }
1566
1567 // ... then in some downstream loader
1568 function loader({ context }) {
1569 let user = context.get(userContext);
1570 let profile = await getProfile(user.id);
1571 return { profile };
1572 }
1573 ```
1574
1575 Similar to server-side requests, a fresh `context` will be created per navigation (or `fetcher` call). If you have initial data you'd like to populate in the context for every request, you can provide an `unstable_getContext` function at the root of your app:
1576 - Library mode - `createBrowserRouter(routes, { unstable_getContext })`
1577 - Framework mode - `<HydratedRouter unstable_getContext>`
1578
1579 This function should return an value of type `unstable_InitialContext` which is a `Map<unstable_RouterContext, unknown>` of context's and initial values:
1580
1581 ```ts
1582 const loggerContext = unstable_createContext<(...args: unknown[]) => void>();
1583
1584 function logger(...args: unknown[]) {
1585 console.log(new Date.toISOString(), ...args);
1586 }
1587
1588 function unstable_getContext() {
1589 let map = new Map();
1590 map.set(loggerContext, logger);
1591 return map;
1592 }
1593 ```
1594
1595## 7.2.0
1596
1597### Minor Changes
1598
1599- New type-safe `href` utility that guarantees links point to actual paths in your app ([#13012](https://github.com/remix-run/react-router/pull/13012))
1600
1601 ```tsx
1602 import { href } from "react-router";
1603
1604 export default function Component() {
1605 const link = href("/blog/:slug", { slug: "my-first-post" });
1606 return (
1607 <main>
1608 <Link to={href("/products/:id", { id: "asdf" })} />
1609 <NavLink to={href("/:lang?/about", { lang: "en" })} />
1610 </main>
1611 );
1612 }
1613 ```
1614
1615### Patch Changes
1616
1617- Fix typegen for repeated params ([#13012](https://github.com/remix-run/react-router/pull/13012))
1618
1619 In React Router, path parameters are keyed by their name.
1620 So for a path pattern like `/a/:id/b/:id?/c/:id`, the last `:id` will set the value for `id` in `useParams` and the `params` prop.
1621 For example, `/a/1/b/2/c/3` will result in the value `{ id: 3 }` at runtime.
1622
1623 Previously, generated types for params incorrectly modeled repeated params with an array.
1624 So `/a/1/b/2/c/3` generated a type like `{ id: [1,2,3] }`.
1625
1626 To be consistent with runtime behavior, the generated types now correctly model the "last one wins" semantics of path parameters.
1627 So `/a/1/b/2/c/3` now generates a type like `{ id: 3 }`.
1628
1629- Don't apply Single Fetch revalidation de-optimization when in SPA mode since there is no server HTTP request ([#12948](https://github.com/remix-run/react-router/pull/12948))
1630
1631- Properly handle revalidations to across a prerender/SPA boundary ([#13021](https://github.com/remix-run/react-router/pull/13021))
1632 - In "hybrid" applications where some routes are pre-rendered and some are served from a SPA fallback, we need to avoid making `.data` requests if the path wasn't pre-rendered because the request will 404
1633 - We don't know all the pre-rendered paths client-side, however:
1634 - All `loader` data in `ssr:false` mode is static because it's generated at build time
1635 - A route must use a `clientLoader` to do anything dynamic
1636 - Therefore, if a route only has a `loader` and not a `clientLoader`, we disable revalidation by default because there is no new data to retrieve
1637 - We short circuit and skip single fetch `.data` request logic if there are no server loaders with `shouldLoad=true` in our single fetch `dataStrategy`
1638 - This ensures that the route doesn't cause a `.data` request that would 404 after a submission
1639
1640- Error at build time in `ssr:false` + `prerender` apps for the edge case scenario of: ([#13021](https://github.com/remix-run/react-router/pull/13021))
1641 - A parent route has only a `loader` (does not have a `clientLoader`)
1642 - The parent route is pre-rendered
1643 - The parent route has children routes which are not prerendered
1644 - This means that when the child paths are loaded via the SPA fallback, the parent won't have any `loaderData` because there is no server on which to run the `loader`
1645 - This can be resolved by either adding a parent `clientLoader` or pre-rendering the child paths
1646 - If you add a `clientLoader`, calling the `serverLoader()` on non-prerendered paths will throw a 404
1647
1648- Add unstable support for splitting route modules in framework mode via `future.unstable_splitRouteModules` ([#11871](https://github.com/remix-run/react-router/pull/11871))
1649
1650- Add `unstable_SerializesTo` brand type for library authors to register types serializable by React Router's streaming format (`turbo-stream`) ([`ab5b05b02`](https://github.com/remix-run/react-router/commit/ab5b05b02f99f062edb3c536c392197c88eb6c77))
1651
1652- Align dev server behavior with static file server behavior when `ssr:false` is set ([#12948](https://github.com/remix-run/react-router/pull/12948))
1653 - When no `prerender` config exists, only SSR down to the root `HydrateFallback` (SPA Mode)
1654 - When a `prerender` config exists but the current path is not prerendered, only SSR down to the root `HydrateFallback` (SPA Fallback)
1655 - Return a 404 on `.data` requests to non-pre-rendered paths
1656
1657- Improve prefetch performance of CSS side effects in framework mode ([#12889](https://github.com/remix-run/react-router/pull/12889))
1658
1659- Disable Lazy Route Discovery for all `ssr:false` apps and not just "SPA Mode" because there is no runtime server to serve the search-param-configured `__manifest` requests ([#12894](https://github.com/remix-run/react-router/pull/12894))
1660 - We previously only disabled this for "SPA Mode" which is `ssr:false` and no `prerender` config but we realized it should apply to all `ssr:false` apps, including those prerendering multiple pages
1661 - In those `prerender` scenarios we would prerender the `/__manifest` file assuming the static file server would serve it but that makes some unneccesary assumptions about the static file server behaviors
1662
1663- Properly handle interrupted manifest requests in lazy route discovery ([#12915](https://github.com/remix-run/react-router/pull/12915))
1664
1665## 7.1.5
1666
1667### Patch Changes
1668
1669- Fix regression introduced in `7.1.4` via [#12800](https://github.com/remix-run/react-router/pull/12800) that caused issues navigating to hash routes inside splat routes for applications using Lazy Route Discovery (`patchRoutesOnNavigation`) ([#12927](https://github.com/remix-run/react-router/pull/12927))
1670
1671## 7.1.4
1672
1673### Patch Changes
1674
1675- Internal reorg to clean up some duplicated route module types ([#12799](https://github.com/remix-run/react-router/pull/12799))
1676- Properly handle status codes that cannot have a body in single fetch responses (204, etc.) ([#12760](https://github.com/remix-run/react-router/pull/12760))
1677- Stop erroring on resource routes that return raw strings/objects and instead serialize them as `text/plain` or `application/json` responses ([#12848](https://github.com/remix-run/react-router/pull/12848))
1678 - This only applies when accessed as a resource route without the `.data` extension
1679 - When accessed from a Single Fetch `.data` request, they will still be encoded via `turbo-stream`
1680- Optimize Lazy Route Discovery path discovery to favor a single `querySelectorAll` call at the `body` level instead of many calls at the sub-tree level ([#12731](https://github.com/remix-run/react-router/pull/12731))
1681- Properly bubble headers as `errorHeaders` when throwing a `data()` result ([#12846](https://github.com/remix-run/react-router/pull/12846))
1682 - Avoid duplication of `Set-Cookie` headers could be duplicated if also returned from `headers`
1683- Optimize route matching by skipping redundant `matchRoutes` calls when possible ([#12800](https://github.com/remix-run/react-router/pull/12800))
1684
1685## 7.1.3
1686
1687_No changes_
1688
1689## 7.1.2
1690
1691### Patch Changes
1692
1693- Fix issue with fetcher data cleanup in the data layer on fetcher unmount ([#12681](https://github.com/remix-run/react-router/pull/12681))
1694- Do not rely on `symbol` for filtering out `redirect` responses from loader data ([#12694](https://github.com/remix-run/react-router/pull/12694))
1695
1696 Previously, some projects were getting type checking errors like:
1697
1698 ```ts
1699 error TS4058: Return type of exported function has or is using name 'redirectSymbol' from external module "node_modules/..." but cannot be named.
1700 ```
1701
1702 Now that `symbol`s are not used for the `redirect` response type, these errors should no longer be present.
1703
1704## 7.1.1
1705
1706_No changes_
1707
1708## 7.1.0
1709
1710### Patch Changes
1711
1712- Throw unwrapped single fetch redirect to align with pre-single fetch behavior ([#12506](https://github.com/remix-run/react-router/pull/12506))
1713- Ignore redirects when inferring loader data types ([#12527](https://github.com/remix-run/react-router/pull/12527))
1714- Remove `<Link prefetch>` warning which suffers from false positives in a lazy route discovery world ([#12485](https://github.com/remix-run/react-router/pull/12485))
1715
1716## 7.0.2
1717
1718### Patch Changes
1719
1720- temporarily only use one build in export map so packages can have a peer dependency on react router ([#12437](https://github.com/remix-run/react-router/pull/12437))
1721- Generate wide `matches` and `params` types for current route and child routes ([#12397](https://github.com/remix-run/react-router/pull/12397))
1722
1723 At runtime, `matches` includes child route matches and `params` include child route path parameters.
1724 But previously, we only generated types for parent routes in `matches`; for `params`, we only considered the parent routes and the current route.
1725 To align our generated types more closely to the runtime behavior, we now generate more permissive, wider types when accessing child route information.
1726
1727## 7.0.1
1728
1729_No changes_
1730
1731## 7.0.0
1732
1733### Major Changes
1734
1735- Remove the original `defer` implementation in favor of using raw promises via single fetch and `turbo-stream`. This removes these exports from React Router: ([#11744](https://github.com/remix-run/react-router/pull/11744))
1736 - `defer`
1737 - `AbortedDeferredError`
1738 - `type TypedDeferredData`
1739 - `UNSAFE_DeferredData`
1740 - `UNSAFE_DEFERRED_SYMBOL`,
1741
1742- - Collapse `@remix-run/router` into `react-router` ([#11505](https://github.com/remix-run/react-router/pull/11505))
1743 - Collapse `react-router-dom` into `react-router`
1744 - Collapse `@remix-run/server-runtime` into `react-router`
1745 - Collapse `@remix-run/testing` into `react-router`
1746
1747- Remove single fetch future flag. ([#11522](https://github.com/remix-run/react-router/pull/11522))
1748
1749- Drop support for Node 16, React Router SSR now requires Node 18 or higher ([#11391](https://github.com/remix-run/react-router/pull/11391))
1750
1751- Remove `future.v7_startTransition` flag ([#11696](https://github.com/remix-run/react-router/pull/11696))
1752
1753- - Expose the underlying router promises from the following APIs for compsition in React 19 APIs: ([#11521](https://github.com/remix-run/react-router/pull/11521))
1754 - `useNavigate()`
1755 - `useSubmit`
1756 - `useFetcher().load`
1757 - `useFetcher().submit`
1758 - `useRevalidator.revalidate`
1759
1760- Remove `future.v7_normalizeFormMethod` future flag ([#11697](https://github.com/remix-run/react-router/pull/11697))
1761
1762- For Remix consumers migrating to React Router, the `crypto` global from the [Web Crypto API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Crypto_API) is now required when using cookie and session APIs. This means that the following APIs are provided from `react-router` rather than platform-specific packages: ([#11837](https://github.com/remix-run/react-router/pull/11837))
1763 - `createCookie`
1764 - `createCookieSessionStorage`
1765 - `createMemorySessionStorage`
1766 - `createSessionStorage`
1767
1768 For consumers running older versions of Node, the `installGlobals` function from `@remix-run/node` has been updated to define `globalThis.crypto`, using [Node's `require('node:crypto').webcrypto` implementation.](https://nodejs.org/api/webcrypto.html)
1769
1770 Since platform-specific packages no longer need to implement this API, the following low-level APIs have been removed:
1771 - `createCookieFactory`
1772 - `createSessionStorageFactory`
1773 - `createCookieSessionStorageFactory`
1774 - `createMemorySessionStorageFactory`
1775
1776- Imports/Exports cleanup ([#11840](https://github.com/remix-run/react-router/pull/11840))
1777 - Removed the following exports that were previously public API from `@remix-run/router`
1778 - types
1779 - `AgnosticDataIndexRouteObject`
1780 - `AgnosticDataNonIndexRouteObject`
1781 - `AgnosticDataRouteMatch`
1782 - `AgnosticDataRouteObject`
1783 - `AgnosticIndexRouteObject`
1784 - `AgnosticNonIndexRouteObject`
1785 - `AgnosticRouteMatch`
1786 - `AgnosticRouteObject`
1787 - `TrackedPromise`
1788 - `unstable_AgnosticPatchRoutesOnMissFunction`
1789 - `Action` -> exported as `NavigationType` via `react-router`
1790 - `Router` exported as `DataRouter` to differentiate from RR's `<Router>`
1791 - API
1792 - `getToPathname` (`@private`)
1793 - `joinPaths` (`@private`)
1794 - `normalizePathname` (`@private`)
1795 - `resolveTo` (`@private`)
1796 - `stripBasename` (`@private`)
1797 - `createBrowserHistory` -> in favor of `createBrowserRouter`
1798 - `createHashHistory` -> in favor of `createHashRouter`
1799 - `createMemoryHistory` -> in favor of `createMemoryRouter`
1800 - `createRouter`
1801 - `createStaticHandler` -> in favor of wrapper `createStaticHandler` in RR Dom
1802 - `getStaticContextFromError`
1803 - Removed the following exports that were previously public API from `react-router`
1804 - `Hash`
1805 - `Pathname`
1806 - `Search`
1807
1808- update minimum node version to 18 ([#11690](https://github.com/remix-run/react-router/pull/11690))
1809
1810- Remove `future.v7_prependBasename` from the ionternalized `@remix-run/router` package ([#11726](https://github.com/remix-run/react-router/pull/11726))
1811
1812- Migrate Remix type generics to React Router ([#12180](https://github.com/remix-run/react-router/pull/12180))
1813 - These generics are provided for Remix v2 migration purposes
1814 - These generics and the APIs they exist on should be considered informally deprecated in favor of the new `Route.*` types
1815 - Anyone migrating from React Router v6 should probably not leverage these new generics and should migrate straight to the `Route.*` types
1816 - For React Router v6 users, these generics are new and should not impact your app, with one exception
1817 - `useFetcher` previously had an optional generic (used primarily by Remix v2) that expected the data type
1818 - This has been updated in v7 to expect the type of the function that generates the data (i.e., `typeof loader`/`typeof action`)
1819 - Therefore, you should update your usages:
1820 - `useFetcher<LoaderData>()`
1821 - `useFetcher<typeof loader>()`
1822
1823- Remove `future.v7_throwAbortReason` from internalized `@remix-run/router` package ([#11728](https://github.com/remix-run/react-router/pull/11728))
1824
1825- Add `exports` field to all packages ([#11675](https://github.com/remix-run/react-router/pull/11675))
1826
1827- node package no longer re-exports from react-router ([#11702](https://github.com/remix-run/react-router/pull/11702))
1828
1829- renamed RemixContext to FrameworkContext ([#11705](https://github.com/remix-run/react-router/pull/11705))
1830
1831- updates the minimum React version to 18 ([#11689](https://github.com/remix-run/react-router/pull/11689))
1832
1833- PrefetchPageDescriptor replaced by PageLinkDescriptor ([#11960](https://github.com/remix-run/react-router/pull/11960))
1834
1835- - Consolidate types previously duplicated across `@remix-run/router`, `@remix-run/server-runtime`, and `@remix-run/react` now that they all live in `react-router` ([#12177](https://github.com/remix-run/react-router/pull/12177))
1836 - Examples: `LoaderFunction`, `LoaderFunctionArgs`, `ActionFunction`, `ActionFunctionArgs`, `DataFunctionArgs`, `RouteManifest`, `LinksFunction`, `Route`, `EntryRoute`
1837 - The `RouteManifest` type used by the "remix" code is now slightly stricter because it is using the former `@remix-run/router` `RouteManifest`
1838 - `Record<string, Route> -> Record<string, Route | undefined>`
1839 - Removed `AppData` type in favor of inlining `unknown` in the few locations it was used
1840 - Removed `ServerRuntimeMeta*` types in favor of the `Meta*` types they were duplicated from
1841
1842- - Remove the `future.v7_partialHydration` flag ([#11725](https://github.com/remix-run/react-router/pull/11725))
1843 - This also removes the `<RouterProvider fallbackElement>` prop
1844 - To migrate, move the `fallbackElement` to a `hydrateFallbackElement`/`HydrateFallback` on your root route
1845 - Also worth nothing there is a related breaking changer with this future flag:
1846 - Without `future.v7_partialHydration` (when using `fallbackElement`), `state.navigation` was populated during the initial load
1847 - With `future.v7_partialHydration`, `state.navigation` remains in an `"idle"` state during the initial load
1848
1849- Remove `v7_relativeSplatPath` future flag ([#11695](https://github.com/remix-run/react-router/pull/11695))
1850
1851- Drop support for Node 18, update minimum Node vestion to 20 ([#12171](https://github.com/remix-run/react-router/pull/12171))
1852 - Remove `installGlobals()` as this should no longer be necessary
1853
1854- Remove remaining future flags ([#11820](https://github.com/remix-run/react-router/pull/11820))
1855 - React Router `v7_skipActionErrorRevalidation`
1856 - Remix `v3_fetcherPersist`, `v3_relativeSplatPath`, `v3_throwAbortReason`
1857
1858- rename createRemixStub to createRoutesStub ([#11692](https://github.com/remix-run/react-router/pull/11692))
1859
1860- Remove `@remix-run/router` deprecated `detectErrorBoundary` option in favor of `mapRouteProperties` ([#11751](https://github.com/remix-run/react-router/pull/11751))
1861
1862- Add `react-router/dom` subpath export to properly enable `react-dom` as an optional `peerDependency` ([#11851](https://github.com/remix-run/react-router/pull/11851))
1863 - This ensures that we don't blindly `import ReactDOM from "react-dom"` in `<RouterProvider>` in order to access `ReactDOM.flushSync()`, since that would break `createMemoryRouter` use cases in non-DOM environments
1864 - DOM environments should import from `react-router/dom` to get the proper component that makes `ReactDOM.flushSync()` available:
1865 - If you are using the Vite plugin, use this in your `entry.client.tsx`:
1866 - `import { HydratedRouter } from 'react-router/dom'`
1867 - If you are not using the Vite plugin and are manually calling `createBrowserRouter`/`createHashRouter`:
1868 - `import { RouterProvider } from "react-router/dom"`
1869
1870- Remove `future.v7_fetcherPersist` flag ([#11731](https://github.com/remix-run/react-router/pull/11731))
1871
1872- Update `cookie` dependency to `^1.0.1` - please see the [release notes](https://github.com/jshttp/cookie/releases) for any breaking changes ([#12172](https://github.com/remix-run/react-router/pull/12172))
1873
1874### Minor Changes
1875
1876- - Add support for `prerender` config in the React Router vite plugin, to support existing SSG use-cases ([#11539](https://github.com/remix-run/react-router/pull/11539))
1877 - You can use the `prerender` config to pre-render your `.html` and `.data` files at build time and then serve them statically at runtime (either from a running server or a CDN)
1878 - `prerender` can either be an array of string paths, or a function (sync or async) that returns an array of strings so that you can dynamically generate the paths by talking to your CMS, etc.
1879
1880 ```ts
1881 // react-router.config.ts
1882 import type { Config } from "@react-router/dev/config";
1883
1884 export default {
1885 async prerender() {
1886 let slugs = await fakeGetSlugsFromCms();
1887 // Prerender these paths into `.html` files at build time, and `.data`
1888 // files if they have loaders
1889 return ["/", "/about", ...slugs.map((slug) => `/product/${slug}`)];
1890 },
1891 } satisfies Config;
1892
1893 async function fakeGetSlugsFromCms() {
1894 await new Promise((r) => setTimeout(r, 1000));
1895 return ["shirt", "hat"];
1896 }
1897 ```
1898
1899- Params, loader data, and action data as props for route component exports ([#11961](https://github.com/remix-run/react-router/pull/11961))
1900
1901 ```tsx
1902 export default function Component({ params, loaderData, actionData }) {}
1903
1904 export function HydrateFallback({ params }) {}
1905 export function ErrorBoundary({ params, loaderData, actionData }) {}
1906 ```
1907
1908- Remove duplicate `RouterProvider` impliementations ([#11679](https://github.com/remix-run/react-router/pull/11679))
1909
1910- ### Typesafety improvements ([#12019](https://github.com/remix-run/react-router/pull/12019))
1911
1912 React Router now generates types for each of your route modules.
1913 You can access those types by importing them from `./+types.<route filename without extension>`.
1914 For example:
1915
1916 ```ts
1917 // app/routes/product.tsx
1918 import type * as Route from "./+types.product";
1919
1920 export function loader({ params }: Route.LoaderArgs) {}
1921
1922 export default function Component({ loaderData }: Route.ComponentProps) {}
1923 ```
1924
1925 This initial implementation targets type inference for:
1926 - `Params` : Path parameters from your routing config in `routes.ts` including file-based routing
1927 - `LoaderData` : Loader data from `loader` and/or `clientLoader` within your route module
1928 - `ActionData` : Action data from `action` and/or `clientAction` within your route module
1929
1930 In the future, we plan to add types for the rest of the route module exports: `meta`, `links`, `headers`, `shouldRevalidate`, etc.
1931 We also plan to generate types for typesafe `Link`s:
1932
1933 ```tsx
1934 <Link to="/products/:id" params={{ id: 1 }} />
1935 // ^^^^^^^^^^^^^ ^^^^^^^^^
1936 // typesafe `to` and `params` based on the available routes in your app
1937 ```
1938
1939 Check out our docs for more:
1940 - [_Explanations > Type Safety_](https://reactrouter.com/dev/guides/explanation/type-safety)
1941 - [_How-To > Setting up type safety_](https://reactrouter.com/dev/guides/how-to/setting-up-type-safety)
1942
1943- Stabilize `unstable_dataStrategy` ([#11969](https://github.com/remix-run/react-router/pull/11969))
1944
1945- Stabilize `unstable_patchRoutesOnNavigation` ([#11970](https://github.com/remix-run/react-router/pull/11970))
1946
1947### Patch Changes
1948
1949- No changes ([`506329c4e`](https://github.com/remix-run/react-router/commit/506329c4e2e7aba9837cbfa44df6103b49423745))
1950
1951- chore: re-enable development warnings through a `development` exports condition. ([#12269](https://github.com/remix-run/react-router/pull/12269))
1952
1953- Remove unstable upload handler. ([#12015](https://github.com/remix-run/react-router/pull/12015))
1954
1955- Remove unneeded dependency on @web3-storage/multipart-parser ([#12274](https://github.com/remix-run/react-router/pull/12274))
1956
1957- Fix redirects returned from loaders/actions using `data()` ([#12021](https://github.com/remix-run/react-router/pull/12021))
1958
1959- fix(react-router): (v7) fix static prerender of non-ascii characters ([#12161](https://github.com/remix-run/react-router/pull/12161))
1960
1961- Replace `substr` with `substring` ([#12080](https://github.com/remix-run/react-router/pull/12080))
1962
1963- Remove the deprecated `json` utility ([#12146](https://github.com/remix-run/react-router/pull/12146))
1964 - You can use [`Response.json`](https://developer.mozilla.org/en-US/docs/Web/API/Response/json_static) if you still need to construct JSON responses in your app
1965
1966- Remove unneeded dependency on source-map ([#12275](https://github.com/remix-run/react-router/pull/12275))
1967
1968## 6.28.0
1969
1970### Minor Changes
1971
1972- - Log deprecation warnings for v7 flags ([#11750](https://github.com/remix-run/react-router/pull/11750))
1973 - Add deprecation warnings to `json`/`defer` in favor of returning raw objects
1974 - These methods will be removed in React Router v7
1975
1976### Patch Changes
1977
1978- Update JSDoc URLs for new website structure (add /v6/ segment) ([#12141](https://github.com/remix-run/react-router/pull/12141))
1979- Updated dependencies:
1980 - `@remix-run/router@1.21.0`
1981
1982## 6.27.0
1983
1984### Minor Changes
1985
1986- Stabilize `unstable_patchRoutesOnNavigation` ([#11973](https://github.com/remix-run/react-router/pull/11973))
1987 - Add new `PatchRoutesOnNavigationFunctionArgs` type for convenience ([#11967](https://github.com/remix-run/react-router/pull/11967))
1988- Stabilize `unstable_dataStrategy` ([#11974](https://github.com/remix-run/react-router/pull/11974))
1989- Stabilize the `unstable_flushSync` option for navigations and fetchers ([#11989](https://github.com/remix-run/react-router/pull/11989))
1990- Stabilize the `unstable_viewTransition` option for navigations and the corresponding `unstable_useViewTransitionState` hook ([#11989](https://github.com/remix-run/react-router/pull/11989))
1991
1992### Patch Changes
1993
1994- Fix bug when submitting to the current contextual route (parent route with an index child) when an `?index` param already exists from a prior submission ([#12003](https://github.com/remix-run/react-router/pull/12003))
1995
1996- Fix `useFormAction` bug - when removing `?index` param it would not keep other non-Remix `index` params ([#12003](https://github.com/remix-run/react-router/pull/12003))
1997
1998- Fix types for `RouteObject` within `PatchRoutesOnNavigationFunction`'s `patch` method so it doesn't expect agnostic route objects passed to `patch` ([#11967](https://github.com/remix-run/react-router/pull/11967))
1999
2000- Updated dependencies:
2001 - `@remix-run/router@1.20.0`
2002
2003## 6.26.2
2004
2005### Patch Changes
2006
2007- Updated dependencies:
2008 - `@remix-run/router@1.19.2`
2009
2010## 6.26.1
2011
2012### Patch Changes
2013
2014- Rename `unstable_patchRoutesOnMiss` to `unstable_patchRoutesOnNavigation` to match new behavior ([#11888](https://github.com/remix-run/react-router/pull/11888))
2015- Updated dependencies:
2016 - `@remix-run/router@1.19.1`
2017
2018## 6.26.0
2019
2020### Minor Changes
2021
2022- Add a new `replace(url, init?)` alternative to `redirect(url, init?)` that performs a `history.replaceState` instead of a `history.pushState` on client-side navigation redirects ([#11811](https://github.com/remix-run/react-router/pull/11811))
2023
2024### Patch Changes
2025
2026- Fix initial hydration behavior when using `future.v7_partialHydration` along with `unstable_patchRoutesOnMiss` ([#11838](https://github.com/remix-run/react-router/pull/11838))
2027 - During initial hydration, `router.state.matches` will now include any partial matches so that we can render ancestor `HydrateFallback` components
2028- Updated dependencies:
2029 - `@remix-run/router@1.19.0`
2030
2031## 6.25.1
2032
2033No significant changes to this package were made in this release. [See the repo `CHANGELOG.md`](https://github.com/remix-run/react-router/blob/main/CHANGELOG.md) for an overview of all changes in v6.25.1.
2034
2035## 6.25.0
2036
2037### Minor Changes
2038
2039- Stabilize `future.unstable_skipActionErrorRevalidation` as `future.v7_skipActionErrorRevalidation` ([#11769](https://github.com/remix-run/react-router/pull/11769))
2040 - When this flag is enabled, actions will not automatically trigger a revalidation if they return/throw a `Response` with a `4xx`/`5xx` status code
2041 - You may still opt-into revalidation via `shouldRevalidate`
2042 - This also changes `shouldRevalidate`'s `unstable_actionStatus` parameter to `actionStatus`
2043
2044### Patch Changes
2045
2046- Fix regression and properly decode paths inside `useMatch` so matches/params reflect decoded params ([#11789](https://github.com/remix-run/react-router/pull/11789))
2047- Updated dependencies:
2048 - `@remix-run/router@1.18.0`
2049
2050## 6.24.1
2051
2052### Patch Changes
2053
2054- When using `future.v7_relativeSplatPath`, properly resolve relative paths in splat routes that are children of pathless routes ([#11633](https://github.com/remix-run/react-router/pull/11633))
2055- Updated dependencies:
2056 - `@remix-run/router@1.17.1`
2057
2058## 6.24.0
2059
2060### Minor Changes
2061
2062- Add support for Lazy Route Discovery (a.k.a. Fog of War) ([#11626](https://github.com/remix-run/react-router/pull/11626))
2063 - RFC: <https://github.com/remix-run/react-router/discussions/11113>
2064 - `unstable_patchRoutesOnMiss` docs: <https://reactrouter.com/v6/routers/create-browser-router>
2065
2066### Patch Changes
2067
2068- Updated dependencies:
2069 - `@remix-run/router@1.17.0`
2070
2071## 6.23.1
2072
2073### Patch Changes
2074
2075- allow undefined to be resolved with `<Await>` ([#11513](https://github.com/remix-run/react-router/pull/11513))
2076- Updated dependencies:
2077 - `@remix-run/router@1.16.1`
2078
2079## 6.23.0
2080
2081### Minor Changes
2082
2083- Add a new `unstable_dataStrategy` configuration option ([#11098](https://github.com/remix-run/react-router/pull/11098))
2084 - This option allows Data Router applications to take control over the approach for executing route loaders and actions
2085 - 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, middleware/context APIs, automatic loader caching, and more
2086
2087### Patch Changes
2088
2089- Updated dependencies:
2090 - `@remix-run/router@1.16.0`
2091
2092## 6.22.3
2093
2094### Patch Changes
2095
2096- Updated dependencies:
2097 - `@remix-run/router@1.15.3`
2098
2099## 6.22.2
2100
2101### Patch Changes
2102
2103- Updated dependencies:
2104 - `@remix-run/router@1.15.2`
2105
2106## 6.22.1
2107
2108### Patch Changes
2109
2110- Fix encoding/decoding issues with pre-encoded dynamic parameter values ([#11199](https://github.com/remix-run/react-router/pull/11199))
2111- Updated dependencies:
2112 - `@remix-run/router@1.15.1`
2113
2114## 6.22.0
2115
2116### Patch Changes
2117
2118- Updated dependencies:
2119 - `@remix-run/router@1.15.0`
2120
2121## 6.21.3
2122
2123### Patch Changes
2124
2125- Remove leftover `unstable_` prefix from `Blocker`/`BlockerFunction` types ([#11187](https://github.com/remix-run/react-router/pull/11187))
2126
2127## 6.21.2
2128
2129### Patch Changes
2130
2131- Updated dependencies:
2132 - `@remix-run/router@1.14.2`
2133
2134## 6.21.1
2135
2136### Patch Changes
2137
2138- Fix bug with `route.lazy` not working correctly on initial SPA load when `v7_partialHydration` is specified ([#11121](https://github.com/remix-run/react-router/pull/11121))
2139- Updated dependencies:
2140 - `@remix-run/router@1.14.1`
2141
2142## 6.21.0
2143
2144### Minor Changes
2145
2146- Add a new `future.v7_relativeSplatPath` flag to implement a breaking bug fix to relative routing when inside a splat route. ([#11087](https://github.com/remix-run/react-router/pull/11087))
2147
2148 This fix was originally added in [#10983](https://github.com/remix-run/react-router/issues/10983) and was later reverted in [#11078](https://github.com/remix-run/react-router/pull/11078) because it was determined that a large number of existing applications were relying on the buggy behavior (see [#11052](https://github.com/remix-run/react-router/issues/11052))
2149
2150 **The Bug**
2151 The buggy behavior is that without this flag, the default behavior when resolving relative paths is to _ignore_ any splat (`*`) portion of the current route path.
2152
2153 **The Background**
2154 This decision was originally made thinking that it would make the concept of nested different sections of your apps in `<Routes>` easier if relative routing would _replace_ the current splat:
2155
2156 ```jsx
2157 <BrowserRouter>
2158 <Routes>
2159 <Route path="/" element={<Home />} />
2160 <Route path="dashboard/*" element={<Dashboard />} />
2161 </Routes>
2162 </BrowserRouter>
2163 ```
2164
2165 Any paths like `/dashboard`, `/dashboard/team`, `/dashboard/projects` will match the `Dashboard` route. The dashboard component itself can then render nested `<Routes>`:
2166
2167 ```jsx
2168 function Dashboard() {
2169 return (
2170 <div>
2171 <h2>Dashboard</h2>
2172 <nav>
2173 <Link to="/">Dashboard Home</Link>
2174 <Link to="team">Team</Link>
2175 <Link to="projects">Projects</Link>
2176 </nav>
2177
2178 <Routes>
2179 <Route path="/" element={<DashboardHome />} />
2180 <Route path="team" element={<DashboardTeam />} />
2181 <Route path="projects" element={<DashboardProjects />} />
2182 </Routes>
2183 </div>
2184 );
2185 }
2186 ```
2187
2188 Now, all links and route paths are relative to the router above them. This makes code splitting and compartmentalizing your app really easy. You could render the `Dashboard` as its own independent app, or embed it into your large app without making any changes to it.
2189
2190 **The Problem**
2191
2192 The problem is that this concept of ignoring part of a path breaks a lot of other assumptions in React Router - namely that `"."` always means the current location pathname for that route. When we ignore the splat portion, we start getting invalid paths when using `"."`:
2193
2194 ```jsx
2195 // If we are on URL /dashboard/team, and we want to link to /dashboard/team:
2196 function DashboardTeam() {
2197 // ❌ This is broken and results in <a href="/dashboard">
2198 return <Link to=".">A broken link to the Current URL</Link>;
2199
2200 // ✅ This is fixed but super unintuitive since we're already at /dashboard/team!
2201 return <Link to="./team">A broken link to the Current URL</Link>;
2202 }
2203 ```
2204
2205 We've also introduced an issue that we can no longer move our `DashboardTeam` component around our route hierarchy easily - since it behaves differently if we're underneath a non-splat route, such as `/dashboard/:widget`. Now, our `"."` links will, properly point to ourself _inclusive of the dynamic param value_ so behavior will break from it's corresponding usage in a `/dashboard/*` route.
2206
2207 Even worse, consider a nested splat route configuration:
2208
2209 ```jsx
2210 <BrowserRouter>
2211 <Routes>
2212 <Route path="dashboard">
2213 <Route path="*" element={<Dashboard />} />
2214 </Route>
2215 </Routes>
2216 </BrowserRouter>
2217 ```
2218
2219 Now, a `<Link to=".">` and a `<Link to="..">` inside the `Dashboard` component go to the same place! That is definitely not correct!
2220
2221 Another common issue arose in Data Routers (and Remix) where any `<Form>` should post to it's own route `action` if you the user doesn't specify a form action:
2222
2223 ```jsx
2224 let router = createBrowserRouter({
2225 path: "/dashboard",
2226 children: [
2227 {
2228 path: "*",
2229 action: dashboardAction,
2230 Component() {
2231 // ❌ This form is broken! It throws a 405 error when it submits because
2232 // it tries to submit to /dashboard (without the splat value) and the parent
2233 // `/dashboard` route doesn't have an action
2234 return <Form method="post">...</Form>;
2235 },
2236 },
2237 ],
2238 });
2239 ```
2240
2241 This is just a compounded issue from the above because the default location for a `Form` to submit to is itself (`"."`) - and if we ignore the splat portion, that now resolves to the parent route.
2242
2243 **The Solution**
2244 If you are leveraging this behavior, it's recommended to enable the future flag, move your splat to it's own route, and leverage `../` for any links to "sibling" pages:
2245
2246 ```jsx
2247 <BrowserRouter>
2248 <Routes>
2249 <Route path="dashboard">
2250 <Route index path="*" element={<Dashboard />} />
2251 </Route>
2252 </Routes>
2253 </BrowserRouter>
2254
2255 function Dashboard() {
2256 return (
2257 <div>
2258 <h2>Dashboard</h2>
2259 <nav>
2260 <Link to="..">Dashboard Home</Link>
2261 <Link to="../team">Team</Link>
2262 <Link to="../projects">Projects</Link>
2263 </nav>
2264
2265 <Routes>
2266 <Route path="/" element={<DashboardHome />} />
2267 <Route path="team" element={<DashboardTeam />} />
2268 <Route path="projects" element={<DashboardProjects />} />
2269 </Router>
2270 </div>
2271 );
2272 }
2273 ```
2274
2275 This way, `.` means "the full current pathname for my route" in all cases (including static, dynamic, and splat routes) and `..` always means "my parents pathname".
2276
2277### Patch Changes
2278
2279- Properly handle falsy error values in ErrorBoundary's ([#11071](https://github.com/remix-run/react-router/pull/11071))
2280- Updated dependencies:
2281 - `@remix-run/router@1.14.0`
2282
2283## 6.20.1
2284
2285### Patch Changes
2286
2287- Revert the `useResolvedPath` fix for splat routes due to a large number of applications that were relying on the buggy behavior (see <https://github.com/remix-run/react-router/issues/11052#issuecomment-1836589329>). We plan to re-introduce this fix behind a future flag in the next minor version. ([#11078](https://github.com/remix-run/react-router/pull/11078))
2288- Updated dependencies:
2289 - `@remix-run/router@1.13.1`
2290
2291## 6.20.0
2292
2293### Minor Changes
2294
2295- Export the `PathParam` type from the public API ([#10719](https://github.com/remix-run/react-router/pull/10719))
2296
2297### Patch Changes
2298
2299- Fix bug with `resolveTo` in splat routes ([#11045](https://github.com/remix-run/react-router/pull/11045))
2300 - This is a follow up to [#10983](https://github.com/remix-run/react-router/pull/10983) to handle the few other code paths using `getPathContributingMatches`
2301 - This removes the `UNSAFE_getPathContributingMatches` export from `@remix-run/router` since we no longer need this in the `react-router`/`react-router-dom` layers
2302- Updated dependencies:
2303 - `@remix-run/router@1.13.0`
2304
2305## 6.19.0
2306
2307### Minor Changes
2308
2309- Add `unstable_flushSync` option to `useNavigate`/`useSumbit`/`fetcher.load`/`fetcher.submit` to opt-out of `React.startTransition` and into `ReactDOM.flushSync` for state updates ([#11005](https://github.com/remix-run/react-router/pull/11005))
2310- Remove the `unstable_` prefix from the [`useBlocker`](https://reactrouter.com/v6/hooks/use-blocker) hook as it's been in use for enough time that we are confident in the API. We do not plan to remove the prefix from `unstable_usePrompt` due to differences in how browsers handle `window.confirm` that prevent React Router from guaranteeing consistent/correct behavior. ([#10991](https://github.com/remix-run/react-router/pull/10991))
2311
2312### Patch Changes
2313
2314- Fix `useActionData` so it returns proper contextual action data and not _any_ action data in the tree ([#11023](https://github.com/remix-run/react-router/pull/11023))
2315
2316- Fix bug in `useResolvedPath` that would cause `useResolvedPath(".")` in a splat route to lose the splat portion of the URL path. ([#10983](https://github.com/remix-run/react-router/pull/10983))
2317 - ⚠️ This fixes a quite long-standing bug specifically for `"."` 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.
2318
2319- Updated dependencies:
2320 - `@remix-run/router@1.12.0`
2321
2322## 6.18.0
2323
2324### Patch Changes
2325
2326- Fix the `future` prop on `BrowserRouter`, `HashRouter` and `MemoryRouter` so that it accepts a `Partial<FutureConfig>` instead of requiring all flags to be included. ([#10962](https://github.com/remix-run/react-router/pull/10962))
2327- Updated dependencies:
2328 - `@remix-run/router@1.11.0`
2329
2330## 6.17.0
2331
2332### Patch Changes
2333
2334- Fix `RouterProvider` `future` prop type to be a `Partial<FutureConfig>` so that not all flags must be specified ([#10900](https://github.com/remix-run/react-router/pull/10900))
2335- Updated dependencies:
2336 - `@remix-run/router@1.10.0`
2337
2338## 6.16.0
2339
2340### Minor Changes
2341
2342- In order to move towards stricter TypeScript support in the future, we're aiming to replace current usages of `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](https://github.com/remix-run/react-router/pull/10843))
2343 - `Location` now accepts a generic for the `location.state` value
2344 - `ActionFunctionArgs`/`ActionFunction`/`LoaderFunctionArgs`/`LoaderFunction` now accept a generic for the `context` parameter (only used in SSR usages via `createStaticHandler`)
2345 - The return type of `useMatches` (now exported as `UIMatch`) accepts generics for `match.data` and `match.handle` - both of which were already set to `unknown`
2346- Move the `@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](https://github.com/remix-run/react-router/pull/10811))
2347- Export `ShouldRevalidateFunctionArgs` interface ([#10797](https://github.com/remix-run/react-router/pull/10797))
2348- Removed private/internal APIs only required for the Remix v1 backwards compatibility layer and no longer needed in Remix v2 (`_isFetchActionRedirect`, `_hasFetcherDoneAnything`) ([#10715](https://github.com/remix-run/react-router/pull/10715))
2349
2350### Patch Changes
2351
2352- Updated dependencies:
2353 - `@remix-run/router@1.9.0`
2354
2355## 6.15.0
2356
2357### Minor Changes
2358
2359- Add's a new `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](https://github.com/remix-run/react-router/pull/10705))
2360
2361### Patch Changes
2362
2363- Ensure `useRevalidator` is referentially stable across re-renders if revalidations are not actively occurring ([#10707](https://github.com/remix-run/react-router/pull/10707))
2364- Updated dependencies:
2365 - `@remix-run/router@1.8.0`
2366
2367## 6.14.2
2368
2369### Patch Changes
2370
2371- Updated dependencies:
2372 - `@remix-run/router@1.7.2`
2373
2374## 6.14.1
2375
2376### Patch Changes
2377
2378- Fix loop in `unstable_useBlocker` when used with an unstable blocker function ([#10652](https://github.com/remix-run/react-router/pull/10652))
2379- Fix issues with reused blockers on subsequent navigations ([#10656](https://github.com/remix-run/react-router/pull/10656))
2380- Updated dependencies:
2381 - `@remix-run/router@1.7.1`
2382
2383## 6.14.0
2384
2385### Patch Changes
2386
2387- Strip `basename` from locations provided to `unstable_useBlocker` functions to match `useLocation` ([#10573](https://github.com/remix-run/react-router/pull/10573))
2388- Fix `generatePath` when passed a numeric `0` value parameter ([#10612](https://github.com/remix-run/react-router/pull/10612))
2389- Fix `unstable_useBlocker` key issues in `StrictMode` ([#10573](https://github.com/remix-run/react-router/pull/10573))
2390- Fix `tsc --skipLibCheck:false` issues on React 17 ([#10622](https://github.com/remix-run/react-router/pull/10622))
2391- Upgrade `typescript` to 5.1 ([#10581](https://github.com/remix-run/react-router/pull/10581))
2392- Updated dependencies:
2393 - `@remix-run/router@1.7.0`
2394
2395## 6.13.0
2396
2397### Minor Changes
2398
2399- Move [`React.startTransition`](https://react.dev/reference/react/startTransition) usage behind a [future flag](https://reactrouter.com/v6/guides/api-development-strategy) to avoid issues with existing incompatible `Suspense` usages. We recommend folks adopting this flag to be better compatible with React concurrent mode, but if you run into issues you can continue without the use of `startTransition` until v7. Issues usually boils down to creating net-new promises during the render cycle, so if you run into issues you should either lift your promise creation out of the render cycle or put it behind a `useMemo`. ([#10596](https://github.com/remix-run/react-router/pull/10596))
2400
2401 Existing behavior will no longer include `React.startTransition`:
2402
2403 ```jsx
2404 <BrowserRouter>
2405 <Routes>{/*...*/}</Routes>
2406 </BrowserRouter>
2407
2408 <RouterProvider router={router} />
2409 ```
2410
2411 If you wish to enable `React.startTransition`, pass the future flag to your component:
2412
2413 ```jsx
2414 <BrowserRouter future={{ v7_startTransition: true }}>
2415 <Routes>{/*...*/}</Routes>
2416 </BrowserRouter>
2417
2418 <RouterProvider router={router} future={{ v7_startTransition: true }}/>
2419 ```
2420
2421### Patch Changes
2422
2423- Work around webpack/terser `React.startTransition` minification bug in production mode ([#10588](https://github.com/remix-run/react-router/pull/10588))
2424
2425## 6.12.1
2426
2427> \[!WARNING]
2428> Please use version `6.13.0` or later instead of `6.12.1`. This version suffers from a `webpack`/`terser` minification issue resulting in invalid minified code in your resulting production bundles which can cause issues in your application. See [#10579](https://github.com/remix-run/react-router/issues/10579) for more details.
2429
2430### Patch Changes
2431
2432- Adjust feature detection of `React.startTransition` to fix webpack + react 17 compilation error ([#10569](https://github.com/remix-run/react-router/pull/10569))
2433
2434## 6.12.0
2435
2436### Minor Changes
2437
2438- Wrap internal router state updates with `React.startTransition` if it exists ([#10438](https://github.com/remix-run/react-router/pull/10438))
2439
2440### Patch Changes
2441
2442- Updated dependencies:
2443 - `@remix-run/router@1.6.3`
2444
2445## 6.11.2
2446
2447### Patch Changes
2448
2449- Fix `basename` duplication in descendant `<Routes>` inside a `<RouterProvider>` ([#10492](https://github.com/remix-run/react-router/pull/10492))
2450- Updated dependencies:
2451 - `@remix-run/router@1.6.2`
2452
2453## 6.11.1
2454
2455### Patch Changes
2456
2457- Fix usage of `Component` API within descendant `<Routes>` ([#10434](https://github.com/remix-run/react-router/pull/10434))
2458- Fix bug when calling `useNavigate` from `<Routes>` inside a `<RouterProvider>` ([#10432](https://github.com/remix-run/react-router/pull/10432))
2459- Fix usage of `<Navigate>` in strict mode when using a data router ([#10435](https://github.com/remix-run/react-router/pull/10435))
2460- Updated dependencies:
2461 - `@remix-run/router@1.6.1`
2462
2463## 6.11.0
2464
2465### Patch Changes
2466
2467- Log loader/action errors to the console in dev for easier stack trace evaluation ([#10286](https://github.com/remix-run/react-router/pull/10286))
2468- Fix bug preventing rendering of descendant `<Routes>` when `RouterProvider` errors existed ([#10374](https://github.com/remix-run/react-router/pull/10374))
2469- Fix inadvertent re-renders when using `Component` instead of `element` on a route definition ([#10287](https://github.com/remix-run/react-router/pull/10287))
2470- 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](https://github.com/remix-run/react-router/pull/10394))
2471- Switched from `useSyncExternalStore` to `useState` for internal `@remix-run/router` router state syncing in `<RouterProvider>`. We found some [subtle bugs](https://codesandbox.io/s/use-sync-external-store-loop-9g7b81) where router state updates got propagated _before_ other normal `useState` updates, which could lead to footguns in `useEffect` calls. ([#10377](https://github.com/remix-run/react-router/pull/10377), [#10409](https://github.com/remix-run/react-router/pull/10409))
2472- Allow `useRevalidator()` to resolve a loader-driven error boundary scenario ([#10369](https://github.com/remix-run/react-router/pull/10369))
2473- Avoid unnecessary unsubscribe/resubscribes on router state changes ([#10409](https://github.com/remix-run/react-router/pull/10409))
2474- 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()`. When using `BrowserRouter`, these hooks remain unstable across location changes because they still rely on `useLocation()`. ([#10336](https://github.com/remix-run/react-router/pull/10336))
2475- Updated dependencies:
2476 - `@remix-run/router@1.6.0`
2477
2478## 6.10.0
2479
2480### Minor Changes
2481
2482- Added support for [**Future Flags**](https://reactrouter.com/v6/guides/api-development-strategy) in React Router. The first 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()` behavior. ([#10207](https://github.com/remix-run/react-router/pull/10207))
2483 - When `future.v7_normalizeFormMethod === false` (default v6 behavior),
2484 - `useNavigation().formMethod` is lowercase
2485 - `useFetcher().formMethod` is lowercase
2486 - When `future.v7_normalizeFormMethod === true`:
2487 - `useNavigation().formMethod` is uppercase
2488 - `useFetcher().formMethod` is uppercase
2489
2490### Patch Changes
2491
2492- Fix route ID generation when using Fragments in `createRoutesFromElements` ([#10193](https://github.com/remix-run/react-router/pull/10193))
2493- Updated dependencies:
2494 - `@remix-run/router@1.5.0`
2495
2496## 6.9.0
2497
2498### Minor Changes
2499
2500- 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](https://github.com/remix-run/react-router/pull/10045))
2501
2502 **Example JSON Syntax**
2503
2504 ```jsx
2505 // Both of these work the same:
2506 const elementRoutes = [{
2507 path: '/',
2508 element: <Home />,
2509 errorElement: <HomeError />,
2510 }]
2511
2512 const componentRoutes = [{
2513 path: '/',
2514 Component: Home,
2515 ErrorBoundary: HomeError,
2516 }]
2517
2518 function Home() { ... }
2519 function HomeError() { ... }
2520 ```
2521
2522 **Example JSX Syntax**
2523
2524 ```jsx
2525 // Both of these work the same:
2526 const elementRoutes = createRoutesFromElements(
2527 <Route path='/' element={<Home />} errorElement={<HomeError /> } />
2528 );
2529
2530 const componentRoutes = createRoutesFromElements(
2531 <Route path='/' Component={Home} ErrorBoundary={HomeError} />
2532 );
2533
2534 function Home() { ... }
2535 function HomeError() { ... }
2536 ```
2537
2538- **Introducing Lazy Route Modules!** ([#10045](https://github.com/remix-run/react-router/pull/10045))
2539
2540 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`).
2541
2542 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.
2543
2544 Your `lazy` functions will typically return the result of a dynamic import.
2545
2546 ```jsx
2547 // In this example, we assume most folks land on the homepage so we include that
2548 // in our critical-path bundle, but then we lazily load modules for /a and /b so
2549 // they don't load until the user navigates to those routes
2550 let routes = createRoutesFromElements(
2551 <Route path="/" element={<Layout />}>
2552 <Route index element={<Home />} />
2553 <Route path="a" lazy={() => import("./a")} />
2554 <Route path="b" lazy={() => import("./b")} />
2555 </Route>,
2556 );
2557 ```
2558
2559 Then in your lazy route modules, export the properties you want defined for the route:
2560
2561 ```jsx
2562 export async function loader({ request }) {
2563 let data = await fetchData(request);
2564 return json(data);
2565 }
2566
2567 // Export a `Component` directly instead of needing to create a React Element from it
2568 export function Component() {
2569 let data = useLoaderData();
2570
2571 return (
2572 <>
2573 <h1>You made it!</h1>
2574 <p>{data}</p>
2575 </>
2576 );
2577 }
2578
2579 // Export an `ErrorBoundary` directly instead of needing to create a React Element from it
2580 export function ErrorBoundary() {
2581 let error = useRouteError();
2582 return isRouteErrorResponse(error) ? (
2583 <h1>
2584 {error.status} {error.statusText}
2585 </h1>
2586 ) : (
2587 <h1>{error.message || error}</h1>
2588 );
2589 }
2590 ```
2591
2592 An example of this in action can be found in the [`examples/lazy-loading-router-provider`](https://github.com/remix-run/react-router/tree/main/examples/lazy-loading-router-provider) directory of the repository.
2593
2594 🙌 Huge thanks to @rossipedia for the [Initial Proposal](https://github.com/remix-run/react-router/discussions/9826) and [POC Implementation](https://github.com/remix-run/react-router/pull/9830).
2595
2596- Updated dependencies:
2597 - `@remix-run/router@1.4.0`
2598
2599### Patch Changes
2600
2601- Fix `generatePath` incorrectly applying parameters in some cases ([#10078](https://github.com/remix-run/react-router/pull/10078))
2602- Improve memoization for context providers to avoid unnecessary re-renders ([#9983](https://github.com/remix-run/react-router/pull/9983))
2603
2604## 6.8.2
2605
2606### Patch Changes
2607
2608- Updated dependencies:
2609 - `@remix-run/router@1.3.3`
2610
2611## 6.8.1
2612
2613### Patch Changes
2614
2615- Remove inaccurate console warning for POP navigations and update active blocker logic ([#10030](https://github.com/remix-run/react-router/pull/10030))
2616- Updated dependencies:
2617 - `@remix-run/router@1.3.2`
2618
2619## 6.8.0
2620
2621### Patch Changes
2622
2623- Updated dependencies:
2624 - `@remix-run/router@1.3.1`
2625
2626## 6.7.0
2627
2628### Minor Changes
2629
2630- Add `unstable_useBlocker` hook for blocking navigations within the app's location origin ([#9709](https://github.com/remix-run/react-router/pull/9709))
2631
2632### Patch Changes
2633
2634- Fix `generatePath` when optional params are present ([#9764](https://github.com/remix-run/react-router/pull/9764))
2635- Update `<Await>` to accept `ReactNode` as children function return result ([#9896](https://github.com/remix-run/react-router/pull/9896))
2636- Updated dependencies:
2637 - `@remix-run/router@1.3.0`
2638
2639## 6.6.2
2640
2641### Patch Changes
2642
2643- Ensure `useId` consistency during SSR ([#9805](https://github.com/remix-run/react-router/pull/9805))
2644
2645## 6.6.1
2646
2647### Patch Changes
2648
2649- Updated dependencies:
2650 - `@remix-run/router@1.2.1`
2651
2652## 6.6.0
2653
2654### Patch Changes
2655
2656- Prevent `useLoaderData` usage in `errorElement` ([#9735](https://github.com/remix-run/react-router/pull/9735))
2657- Updated dependencies:
2658 - `@remix-run/router@1.2.0`
2659
2660## 6.5.0
2661
2662This release introduces support for [Optional Route Segments](https://github.com/remix-run/react-router/issues/9546). 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.
2663
2664**Optional Params Examples**
2665
2666- `<Route path=":lang?/about>` will match:
2667 - `/:lang/about`
2668 - `/about`
2669- `<Route path="/multistep/:widget1?/widget2?/widget3?">` will match:
2670 - `/multistep`
2671 - `/multistep/:widget1`
2672 - `/multistep/:widget1/:widget2`
2673 - `/multistep/:widget1/:widget2/:widget3`
2674
2675**Optional Static Segment Example**
2676
2677- `<Route path="/home?">` will match:
2678 - `/`
2679 - `/home`
2680- `<Route path="/fr?/about">` will match:
2681 - `/about`
2682 - `/fr/about`
2683
2684### Minor Changes
2685
2686- Allows optional routes and optional static segments ([#9650](https://github.com/remix-run/react-router/pull/9650))
2687
2688### Patch Changes
2689
2690- Stop incorrectly matching on partial named parameters, i.e. `<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](https://github.com/remix-run/react-router/pull/9506))
2691
2692```jsx
2693// Old behavior at URL /prefix-123
2694<Route path="prefix-:id" element={<Comp /> }>
2695
2696function Comp() {
2697 let params = useParams(); // { id: '123' }
2698 let id = params.id; // "123"
2699 ...
2700}
2701
2702// New behavior at URL /prefix-123
2703<Route path=":id" element={<Comp /> }>
2704
2705function Comp() {
2706 let params = useParams(); // { id: 'prefix-123' }
2707 let id = params.id.replace(/^prefix-/, ''); // "123"
2708 ...
2709}
2710```
2711
2712- Updated dependencies:
2713 - `@remix-run/router@1.1.0`
2714
2715## 6.4.5
2716
2717### Patch Changes
2718
2719- Updated dependencies:
2720 - `@remix-run/router@1.0.5`
2721
2722## 6.4.4
2723
2724### Patch Changes
2725
2726- Updated dependencies:
2727 - `@remix-run/router@1.0.4`
2728
2729## 6.4.3
2730
2731### Patch Changes
2732
2733- `useRoutes` should be able to return `null` when passing `locationArg` ([#9485](https://github.com/remix-run/react-router/pull/9485))
2734- fix `initialEntries` type in `createMemoryRouter` ([#9498](https://github.com/remix-run/react-router/pull/9498))
2735- Updated dependencies:
2736 - `@remix-run/router@1.0.3`
2737
2738## 6.4.2
2739
2740### Patch Changes
2741
2742- Fix `IndexRouteObject` and `NonIndexRouteObject` types to make `hasErrorElement` optional ([#9394](https://github.com/remix-run/react-router/pull/9394))
2743- Enhance console error messages for invalid usage of data router hooks ([#9311](https://github.com/remix-run/react-router/pull/9311))
2744- If an index route has children, it will result in a runtime error. We have strengthened our `RouteObject`/`RouteProps` types to surface the error in TypeScript. ([#9366](https://github.com/remix-run/react-router/pull/9366))
2745- Updated dependencies:
2746 - `@remix-run/router@1.0.2`
2747
2748## 6.4.1
2749
2750### Patch Changes
2751
2752- Preserve state from `initialEntries` ([#9288](https://github.com/remix-run/react-router/pull/9288))
2753- Updated dependencies:
2754 - `@remix-run/router@1.0.1`
2755
2756## 6.4.0
2757
2758Whoa 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](https://reactrouter.com), especially the [feature overview](https://reactrouter.com/en/6.4.0/start/overview) and the [tutorial](https://reactrouter.com/en/6.4.0/start/tutorial).
2759
2760**New APIs**
2761
2762- Create your router with `createMemoryRouter`
2763- Render your router with `<RouterProvider>`
2764- Load data with a Route `loader` and mutate with a Route `action`
2765- Handle errors with Route `errorElement`
2766- Defer non-critical data with `defer` and `Await`
2767
2768**Bug Fixes**
2769
2770- Path resolution is now trailing slash agnostic (#8861)
2771- `useLocation` returns the scoped location inside a `<Routes location>` component (#9094)
2772
2773**Updated Dependencies**
2774
2775- `@remix-run/router@1.0.0`