Update react monorepo to v19.3.0

renovate-bot commented

2026-07-31 06:01:30 +01:00

Collaborator

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@types/react (source)	`19.2.17` → `19.3.0`
@types/react-dom (source)	`19.2.3` → `19.3.0`
react (source)	`19.2.7` → `19.3.0`
react-dom (source)	`19.2.7` → `19.3.0`

Release Notes

react/react (react)

`v19.3.0`

Compare Source

New React Features

<ViewTransition />: Adds <ViewTransition /> and addTransitionType APIs to power View Transition animations in React (@sebmarkbage, @jackpope, @gaearon: #31975, #31987, #31996, #31999, #32001, #32002, #32028, #32029, #32031, #32034, #32038, #32041, #32050, #32090, #32105, #32254, #32379, #32422, #32462, #32540, #32545, #32585, #32599, #32611, #32612, #32617, #32651, #32653, #32656, #32664, #32699, #32723, #32734, #32751, #32752, #32760, #32761, #32764, #32772, #32790, #32819, #32820, #32822, #32833, #32849, #33094, #33191, #33200, #33206, #33293, #33330, #33331, #33332, #33357, #33362, #33433, #33576, #34374, #34450, #34481, #34500, #34502, #34510, #34511, #34539, #35567, #35564, #35485, #35380, #35063, #35060, #34676, #36917, #35337, #35520)
Fragment Refs: Add Refs to <Fragment /> to support composable platform behavior (@jackpope, @sebmarkbage, @eps1lon, @Dhakshin2007, @chirokas, @teamleaderleo, @fallintoplace: #32465, #32613, #32619, #32654, #32660, #32682, #32722, #32813, #32814, #33056, #33058, #33093, #34069, #34103, #34544, #34545, #37062, #37061, #37060, #36047, #36010, #35642, #35641, #35637, #35630, #34935, #37457, #37408, #37326, #37251, #37171, #37169, #37168, #37167, #37166, #37165, #37164, #37163, #37162, #37161, #37160, #37125, #37063)

New React DOM Features

browser(): a new react-dom API that returns a usable which errors during server rendering and resolves in the browser. use(browser()) inside a <Suspense> boundary marks a subtree as browser-only without reporting a recoverable error (@gnoff: #37143, #37241)
- Added an onBrowserBailout option to the react-dom/server APIs to observe when a subtree defers to the browser (@gnoff #37193)

Notable changes

Enable Trusted Types API integration (@rickhanlonii #35816)
Transitions now render independently instead of being entangled into a single render, so a slow transition no longer holds up unrelated ones (@acdlite #37290)
Added a DEV-only warning when a component appears to have been unblocked by calling use() conditionally (@hoxyq, @eps1lon: #37104, #37203, #37491)

All Changes

React

Fast Refresh Fixes
- Fix Fast Refresh to find and remount edits to components wrapped behind lazy() (@sophiebits #36965)
- Fix Fast Refresh so edits to a memo() comparison function take effect (@sophiebits #36964)
- Fix Fast Refresh crash when an edit changes the kind of a component's type (@sophiebits #36963)
- Unify hot reload type resolution for Fast Refresh (@sophiebits #36962)
- Fix Fast Refresh to remount correctly when an edit changes the component kind (@sophiebits #36950)
- Double invoke effects in StrictMode after Fast Refresh (@eps1lon #35962)
Performance Track Fixes
- Prevent crash when accessing $$typeof in Performance Tracks (@eps1lon #35679)
- Handle non-string function names in Performance Tracks (@eps1lon #35659)
- Use minus (-) instead of en dash for removed props in Performance Tracks (@eps1lon #35649)
- Handle arrays with bigints in deep objects in Performance Tracks (@eps1lon #35648)
- Don't enumerate typed array props in Performance Tracks in DEV (@UditDewan #36913)
- Bail out of diffing wide objects and arrays in Performance Tracks (@eps1lon #34742)
- Clear potentially large performance measures in DEV (@hoxyq #34803)
- Fix missing else branch for renders with no props change in Performance Tracks (@hoxyq #34837)
Activity Fixes
- Fix useSyncExternalStore missing store mutations that happened while an Activity tree was hidden (@sophiebits #36947)
- Hide portal contents when an Activity is hidden (@acdlite #35091)
- Prevent metadata hoisting in hidden <Activity> trees (@ronnakamoto #34983)
- Prevent errors thrown inside a hidden Activity from escaping to the visible UI (@acdlite #35074)
- Don't unhide a node if a direct parent Offscreen is still hidden (@sebmarkbage #34821)
- Don't show internal <Offscreen> component in error messages (@rickhanlonii #35763)
Warn in DEV when a component appears to have been unblocked by a conditional use() (@hoxyq, @eps1lon: #37104, #37203, #37491)
Render transitions independently instead of entangling them into a single render (@acdlite #37290)
Fix hang when updating a dehydrated boundary inside a hidden tree (@gaearon #37135)
Don't reacquire Host Singletons during dev effect validation (@gnoff #37113)
Only remove properties from Host Singletons on release (@gnoff #37112)
Don't invoke effects on moved children in StrictMode (@sophiebits #36948)
Throw a clearer error when a rejected Promise is incorrectly instrumented (@eps1lon #36328)
Fix context propagation into Suspense fallbacks (@acdlite #36160)
Fix context propagation through suspended Suspense boundaries (@acdlite #35839)
Fix useDeferredValue getting stuck (@gaearon #36134)
Update useActionState error message to say "action state" instead of "form state" (@rickhanlonii #35790)
Don't warn when rendering data block scripts (@eps1lon #35953)
Treat fibers with alternates as mounted in getNearestMountedFiber (@sebmarkbage #35578)
Always instrument the lazy initializer thenable (@gnoff #35521)
Annotate cascading updates for DevTools performance tracks in DEV (@huntie #34961)
Resolve the .default export of a React.lazy as the canonical value (@sebmarkbage #34906)
Limit owner stacks to 10 frames (@eps1lon #34864)
Ensure useEffectEvent reads latest values in forwardRef and memo() components (@eps1lon #34831)

React DOM

Copy source onto the synthetic toggle event (@lazerg #37389)
Update HTML parser rules for the new <select> parser (@josepharhar #34804)
Update defaultValue for type="number" inputs to match other input types (@sophiebits #36980)
Avoid setting innerHTML when it hasn't changed (@sophiebits #36949)
Forward the nonce option in ReactDOM.preloadModule() (@UditDewan #36851)
Support fetchPriority for module resources (@TheAlexLichter #36835)
Track stylesheet preloads when explicitly preloaded to avoid unnecessary suspension (@gnoff #36386)
Suggest correct casing for the misspelled credentialless iframe attribute (@vmx906 #36322)
Add credentialless as a recognized boolean attribute for iframes (@vmx906 #36148)
Prevent reentrant finishedTask from calling completeAll multiple times (@gnoff #36287)
Update the CSS shorthand property list (@kidonng #35636)
Support the maskType SVG prop (@sleitor #35921)
Add support for onFullscreenChange and onFullscreenError events (@chirokas #34621)
Include submitter in submit events (@eps1lon #35590)
Fire onReset when automatically resetting forms (@eps1lon #35176)
Use the FormData submitter parameter (@jenseng #29028)
Fix form status reset when component state is updated (@eps1lon #34075)
Batch updates from resize events until the next frame (@eps1lon #35117)

React Server

Add nonce to rendered import maps (@mattcosta7 #37339)
Add an onBrowserBailout option to observe subtrees that defer to the browser (@gnoff #37193)
Stop the caller's signal from retaining a finished render (@unstubbable #37315)
Construct the render lifetime controller only when it is needed (@unstubbable #37357)
Fix react-dom/server hanging on Deno (@fraidev #35235)
Extend stack overflow recovery to retries in SSR (@jackpope #36977)
Fix false-positive hydration mismatch on nonce attributes (@MaxwellCohen #37030)
Guard shell-error callbacks instead of nulling them out on the request (@eps1lon #36916)
Stop firing onAllReady after the shell errored (@eps1lon #36903)
Treat an incomplete tree as an error during error recovery (@acdlite #36911)
Fix non-script modulepreload tracking (@fallintoplace #36564)
Finalize postponed nextSegmentId after the prelude flush (@gaojude #36779)
Preserve referrerPolicy in image preload headers (@ulises-jeremias #36803)
Allow pending work to specialize abort reasons (@gnoff #36586)
Abort tasks that suspend after aborting during render (@gnoff #36585)
Finish abort in a scheduled task (@gnoff #36580)
Fix aborts during resumed rendering (@gnoff #36584)
Track abort state on the request (@gnoff #36583)
Model external work scheduling explicitly in the fb bundle (@gnoff #36576)
Continue reporting aborted task errors after a fatal abort (@gnoff #36575)
Disallow abort reentrancy (@gnoff #36574)
Stop transpiling computed property names (@eps1lon #36542)
Fix crash when capturing the callsite of a stalled use() of a rejected Flight chunk (@lubieowoce #36544)
Double invoke effects in Strict Mode during hydration (@eps1lon #35961)
Add additional task reentrancy protections in Fizz (@gnoff #36291)
Don't outline Suspense boundaries with suspensey CSS during shell flush (@gnoff #35824)
Push a stalled use() to the owner stack and debug task (@eps1lon #35226)
Fix useId tracking on replay (@gnoff #35518)
Correctly handle replaying when hydrating (@gnoff #35494)
Simplify the createSuspenseBoundary path (@sebmarkbage #35087)
Unify preamble-only fields to save a field on Suspense boundaries (@sebmarkbage #35068)
Unify prerender-only fields to save a field on Suspense boundaries (@sebmarkbage #35067)
Push halted awaits to the owner stack for late-arriving I/O info (@unstubbable #35019)
Include all Node.js APIs in the Bun entrypoint for react-dom/server (@RiskyMH #34193)
Detach a Suspense boundary after flushing its segment (@gnoff #34694)

React Server Components

Keep an element pending while a referenced row is resolving (@unstubbable #37542)
Fix RangeError from exponential debug info growth (@unstubbable #37481)
Abort the cache signal when debug objects are retained (@unstubbable #37342)
Transfer key validation of lazy nodes when they are unwrapped (@unstubbable #37258)
Add pending_weak to the Flight thenable protocol (@acdlite #37154)
Outline and dedupe repeated strings (@gaearon #37147)
Port Reply Server traversal guards to the Flight Client (@eps1lon #37144)
Define Flight chunk .then with Object.defineProperty (@eps1lon #37109)
Support Turbopack's experimental array format for chunks (@sampoder #37095)
Limit fake JSX call site stacks to 10 frames (@timneutkens #37086)
Improve performance when decoding Flight replies (@gnoff #37090)
Recognize Node 22+ V8 frames for Promise statics in debug info (@gaearon #36969)
Tailor the warning for binary data serialized through toJSON (Node Buffer) (@unstubbable #36873)
Resolve models before JSON.stringify for faster serialization (@mhart #36795)
Prune debug info when chunks error (@gnoff #36782)
Avoid main-thread stalls from large debug strings (@unstubbable #36570)
Fix stranded row content under Node stream backpressure (@unstubbable #36516)
Fix dropped FormData entries in decodeReplyFromBusboy (@unstubbable #36468)
Harden types and improve performance of Flight replies (@eps1lon #36425)
Add more cycle protections to Flight replies (@eps1lon #36236)
Transport AggregateError.errors (@eps1lon #36156)
Bail out early when a backing entry for Blob deserialization is not a Blob (@eps1lon #36055)
Clear chunk reason after successful module initialization (@unstubbable #36024)
Add support for transporting Error.cause (@eps1lon #35810)
Walk parsed JSON instead of using a reviver for faster RSC payload parsing (@timneutkens #35776)
Skip transferReferencedDebugInfo during debug info resolution (@unstubbable #35795)
Add unstable_allowPartialStream option to Flight Client (@unstubbable #35731)
Fix encodeReply for JSX with temporary references (@unstubbable #35730)
Fix debug channel flag in Node.js renderToPipeableStream (@feedthejim #35724)
Fix stack overflow in visitAsyncNode with deep async chains (@unstubbable #35612)
Allow Server Components to render context providers from client modules (@rickhanlonii #35675)
Allow overriding request.timeOrigin via options.startTime (@lubieowoce #35598)
Warn once if eval is disabled in the dev environment (@eps1lon #35661)
Restore original function name in dev server callstacks served with unsafe-eval (@eps1lon #35650)
Fix react-markup types for server references (@eps1lon #35634)
Add more DoS mitigations to Flight replies and harden Flight (@unstubbable #35632)
Allow cyclic references to be serialized when unwrapping lazy elements (@unstubbable #35471)
Improve cyclic thenable detection in Flight reply server (@cvan20191 #35369)
Add extra loop protection to Flight reply server (@sebmarkbage #35351)
Patch Promise cycles and toString on Server Functions (@sebmarkbage #35345)
Move react-server-dom-webpack/*.unbundled to private react-server-dom-unbundled (@eps1lon #35290)
Never parse then functions in Flight replies (@sebmarkbage #35289)
Patch Flight reply server with fixes from Flight Client (@sebmarkbage #35277)
Complete the list of Node.js internal Promise awaits (@eps1lon #35161)
Reduce risk of maximum call stack exceeded when emitting async sequences (@eps1lon #35159)
Fix pending chunks count for streams and async iterables in DEV (@unstubbable #35143)
Fix broken byte stream parsing caused by buffer detachment (@unstubbable #35127)
Fix hasReadable flag in Node.js clients' debug channel (@unstubbable #35039)
Fix debug info filtering to include later resolved I/O (@unstubbable #35036)
Cache the value when visiting the same I/O or Promise along different paths (@sebmarkbage #35005)
Clone subsequent I/O nodes when resolved more than once (@sebmarkbage #35003)
Fix hang after resolving cyclic references (@unstubbable #34988)
Allow passing DEV-only startTime as an option (@sebmarkbage #34912)
Ignore bound-anonymous-fn resources as they're not considered I/O (@sebmarkbage #34911)
Fix detached ArrayBuffer error when streaming typed arrays (@unstubbable #34849)
Exclude RSC stream if the stream resolves in a task (@sebmarkbage #34838)
Forward the current environment when forwarding I/O entries (@sebmarkbage #34836)
Look for moved debug info when logging component performance track (@sebmarkbage #34839)
Respect displayName of Promise instances on the server (@sebmarkbage #34825)
Avoid unnecessary indirection when serializing debug info (@unstubbable #34797)
Fix preload as attribute for stylesheets (@unstubbable #34760)
Don't serialize toJSON in debug path and omit wide arrays (@sebmarkbage #34759)
Add support for <Activity> (@eps1lon #34697)

`v19.2.8`: 19.2.8 (July 21st, 2026)

Compare Source

React Server Components

Performance improvements when decoding
(#37087 by @eps1lon)

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This PR contains the following updates: | Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Adoption](https://docs.renovatebot.com/merge-confidence/) | [Passing](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) | |---|---|---|---|---|---| | [@types/react](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/react) ([source](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react)) | [`19.2.17` → `19.3.0`](https://renovatebot.com/diffs/npm/@types%2freact/19.2.17/19.3.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@types%2freact/19.3.0?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@types%2freact/19.3.0?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@types%2freact/19.2.17/19.3.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@types%2freact/19.2.17/19.3.0?slim=true) | | [@types/react-dom](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/react-dom) ([source](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react-dom)) | [`19.2.3` → `19.3.0`](https://renovatebot.com/diffs/npm/@types%2freact-dom/19.2.3/19.3.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@types%2freact-dom/19.3.0?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@types%2freact-dom/19.3.0?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@types%2freact-dom/19.2.3/19.3.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@types%2freact-dom/19.2.3/19.3.0?slim=true) | | [react](https://react.dev/) ([source](https://github.com/react/react/tree/HEAD/packages/react)) | [`19.2.7` → `19.3.0`](https://renovatebot.com/diffs/npm/react/19.2.7/19.3.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/react/19.3.0?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/react/19.3.0?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/react/19.2.7/19.3.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/react/19.2.7/19.3.0?slim=true) | | [react-dom](https://react.dev/) ([source](https://github.com/react/react/tree/HEAD/packages/react-dom)) | [`19.2.7` → `19.3.0`](https://renovatebot.com/diffs/npm/react-dom/19.2.7/19.3.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/react-dom/19.3.0?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/react-dom/19.3.0?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/react-dom/19.2.7/19.3.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/react-dom/19.2.7/19.3.0?slim=true) | --- ### Release Notes <details> <summary>react/react (react)</summary> ### [`v19.3.0`](https://github.com/react/react/blob/HEAD/CHANGELOG.md#1930-September-9-2026) [Compare Source](https://github.com/react/react/compare/v19.2.8...v19.3.0) ##### New React Features - `<ViewTransition />`: Adds `<ViewTransition />` and `addTransitionType` APIs to power View Transition animations in React ([@sebmarkbage](https://github.com/sebmarkbage), [@jackpope](https://github.com/jackpope), [@gaearon](https://github.com/gaearon): [#31975](https://github.com/facebook/react/pull/31975), [#31987](https://github.com/facebook/react/pull/31987), [#31996](https://github.com/facebook/react/pull/31996), [#31999](https://github.com/facebook/react/pull/31999), [#32001](https://github.com/facebook/react/pull/32001), [#32002](https://github.com/facebook/react/pull/32002), [#32028](https://github.com/facebook/react/pull/32028), [#32029](https://github.com/facebook/react/pull/32029), [#32031](https://github.com/facebook/react/pull/32031), [#32034](https://github.com/facebook/react/pull/32034), [#32038](https://github.com/facebook/react/pull/32038), [#32041](https://github.com/facebook/react/pull/32041), [#32050](https://github.com/facebook/react/pull/32050), [#32090](https://github.com/facebook/react/pull/32090), [#32105](https://github.com/facebook/react/pull/32105), [#32254](https://github.com/facebook/react/pull/32254), [#32379](https://github.com/facebook/react/pull/32379), [#32422](https://github.com/facebook/react/pull/32422), [#32462](https://github.com/facebook/react/pull/32462), [#32540](https://github.com/facebook/react/pull/32540), [#32545](https://github.com/facebook/react/pull/32545), [#32585](https://github.com/facebook/react/pull/32585), [#32599](https://github.com/facebook/react/pull/32599), [#32611](https://github.com/facebook/react/pull/32611), [#32612](https://github.com/facebook/react/pull/32612), [#32617](https://github.com/facebook/react/pull/32617), [#32651](https://github.com/facebook/react/pull/32651), [#32653](https://github.com/facebook/react/pull/32653), [#32656](https://github.com/facebook/react/pull/32656), [#32664](https://github.com/facebook/react/pull/32664), [#32699](https://github.com/facebook/react/pull/32699), [#32723](https://github.com/facebook/react/pull/32723), [#32734](https://github.com/facebook/react/pull/32734), [#32751](https://github.com/facebook/react/pull/32751), [#32752](https://github.com/facebook/react/pull/32752), [#32760](https://github.com/facebook/react/pull/32760), [#32761](https://github.com/facebook/react/pull/32761), [#32764](https://github.com/facebook/react/pull/32764), [#32772](https://github.com/facebook/react/pull/32772), [#32790](https://github.com/facebook/react/pull/32790), [#32819](https://github.com/facebook/react/pull/32819), [#32820](https://github.com/facebook/react/pull/32820), [#32822](https://github.com/facebook/react/pull/32822), [#32833](https://github.com/facebook/react/pull/32833), [#32849](https://github.com/facebook/react/pull/32849), [#33094](https://github.com/facebook/react/pull/33094), [#33191](https://github.com/facebook/react/pull/33191), [#33200](https://github.com/facebook/react/pull/33200), [#33206](https://github.com/facebook/react/pull/33206), [#33293](https://github.com/facebook/react/pull/33293), [#33330](https://github.com/facebook/react/pull/33330), [#33331](https://github.com/facebook/react/pull/33331), [#33332](https://github.com/facebook/react/pull/33332), [#33357](https://github.com/facebook/react/pull/33357), [#33362](https://github.com/facebook/react/pull/33362), [#33433](https://github.com/facebook/react/pull/33433), [#33576](https://github.com/facebook/react/pull/33576), [#34374](https://github.com/facebook/react/pull/34374), [#34450](https://github.com/facebook/react/pull/34450), [#34481](https://github.com/facebook/react/pull/34481), [#34500](https://github.com/facebook/react/pull/34500), [#34502](https://github.com/facebook/react/pull/34502), [#34510](https://github.com/facebook/react/pull/34510), [#34511](https://github.com/facebook/react/pull/34511), [#34539](https://github.com/facebook/react/pull/34539), [#35567](https://github.com/facebook/react/pull/35567), [#35564](https://github.com/facebook/react/pull/35564), [#35485](https://github.com/facebook/react/pull/35485), [#35380](https://github.com/facebook/react/pull/35380), [#35063](https://github.com/facebook/react/pull/35063), [#35060](https://github.com/facebook/react/pull/35060), [#34676](https://github.com/facebook/react/pull/34676), [#36917](https://github.com/facebook/react/pull/36917), [#35337](https://github.com/facebook/react/pull/35337), [#35520](https://github.com/facebook/react/pull/35520)) - Fragment Refs: Add Refs to `<Fragment />` to support composable platform behavior ([@jackpope](https://github.com/jackpope), [@sebmarkbage](https://github.com/sebmarkbage), [@eps1lon](https://github.com/eps1lon), [@Dhakshin2007](https://github.com/Dhakshin2007), [@chirokas](https://github.com/chirokas), [@teamleaderleo](https://github.com/teamleaderleo), [@fallintoplace](https://github.com/fallintoplace): [#32465](https://github.com/facebook/react/pull/32465), [#32613](https://github.com/facebook/react/pull/32613), [#32619](https://github.com/facebook/react/pull/32619), [#32654](https://github.com/facebook/react/pull/32654), [#32660](https://github.com/facebook/react/pull/32660), [#32682](https://github.com/facebook/react/pull/32682), [#32722](https://github.com/facebook/react/pull/32722), [#32813](https://github.com/facebook/react/pull/32813), [#32814](https://github.com/facebook/react/pull/32814), [#33056](https://github.com/facebook/react/pull/33056), [#33058](https://github.com/facebook/react/pull/33058), [#33093](https://github.com/facebook/react/pull/33093), [#34069](https://github.com/facebook/react/pull/34069), [#34103](https://github.com/facebook/react/pull/34103), [#34544](https://github.com/facebook/react/pull/34544), [#34545](https://github.com/facebook/react/pull/34545), [#37062](https://github.com/facebook/react/pull/37062), [#37061](https://github.com/facebook/react/pull/37061), [#37060](https://github.com/facebook/react/pull/37060), [#36047](https://github.com/facebook/react/pull/36047), [#36010](https://github.com/facebook/react/pull/36010), [#35642](https://github.com/facebook/react/pull/35642), [#35641](https://github.com/facebook/react/pull/35641), [#35637](https://github.com/facebook/react/pull/35637), [#35630](https://github.com/facebook/react/pull/35630), [#34935](https://github.com/facebook/react/pull/34935), [#37457](https://github.com/facebook/react/pull/37457), [#37408](https://github.com/facebook/react/pull/37408), [#37326](https://github.com/facebook/react/pull/37326), [#37251](https://github.com/facebook/react/pull/37251), [#37171](https://github.com/facebook/react/pull/37171), [#37169](https://github.com/facebook/react/pull/37169), [#37168](https://github.com/facebook/react/pull/37168), [#37167](https://github.com/facebook/react/pull/37167), [#37166](https://github.com/facebook/react/pull/37166), [#37165](https://github.com/facebook/react/pull/37165), [#37164](https://github.com/facebook/react/pull/37164), [#37163](https://github.com/facebook/react/pull/37163), [#37162](https://github.com/facebook/react/pull/37162), [#37161](https://github.com/facebook/react/pull/37161), [#37160](https://github.com/facebook/react/pull/37160), [#37125](https://github.com/facebook/react/pull/37125), [#37063](https://github.com/facebook/react/pull/37063)) ##### New React DOM Features - `browser()`: a new `react-dom` API that returns a usable which errors during server rendering and resolves in the browser. `use(browser())` inside a `<Suspense>` boundary marks a subtree as browser-only without reporting a recoverable error ([@gnoff](https://github.com/gnoff): [#37143](https://github.com/facebook/react/pull/37143), [#37241](https://github.com/facebook/react/pull/37241)) - Added an `onBrowserBailout` option to the `react-dom/server` APIs to observe when a subtree defers to the browser ([@gnoff](https://github.com/gnoff) [#37193](https://github.com/facebook/react/pull/37193)) ##### Notable changes - Enable Trusted Types API integration ([@rickhanlonii](https://github.com/rickhanlonii) [#35816](https://github.com/facebook/react/pull/35816)) - Transitions now render independently instead of being entangled into a single render, so a slow transition no longer holds up unrelated ones ([@acdlite](https://github.com/acdlite) [#37290](https://github.com/facebook/react/pull/37290)) - Added a DEV-only warning when a component appears to have been unblocked by calling `use()` conditionally ([@hoxyq](https://github.com/hoxyq), [@eps1lon](https://github.com/eps1lon): [#37104](https://github.com/facebook/react/pull/37104), [#37203](https://github.com/facebook/react/pull/37203), [#37491](https://github.com/facebook/react/pull/37491)) ##### All Changes ##### React - Fast Refresh Fixes - Fix Fast Refresh to find and remount edits to components wrapped behind `lazy()` ([@sophiebits](https://github.com/sophiebits) [#36965](https://github.com/facebook/react/pull/36965)) - Fix Fast Refresh so edits to a `memo()` comparison function take effect ([@sophiebits](https://github.com/sophiebits) [#36964](https://github.com/facebook/react/pull/36964)) - Fix Fast Refresh crash when an edit changes the kind of a component's type ([@sophiebits](https://github.com/sophiebits) [#36963](https://github.com/facebook/react/pull/36963)) - Unify hot reload type resolution for Fast Refresh ([@sophiebits](https://github.com/sophiebits) [#36962](https://github.com/facebook/react/pull/36962)) - Fix Fast Refresh to remount correctly when an edit changes the component kind ([@sophiebits](https://github.com/sophiebits) [#36950](https://github.com/facebook/react/pull/36950)) - Double invoke effects in StrictMode after Fast Refresh ([@eps1lon](https://github.com/eps1lon) [#35962](https://github.com/facebook/react/pull/35962)) - Performance Track Fixes - Prevent crash when accessing `$$typeof` in Performance Tracks ([@eps1lon](https://github.com/eps1lon) [#35679](https://github.com/facebook/react/pull/35679)) - Handle non-string function names in Performance Tracks ([@eps1lon](https://github.com/eps1lon) [#35659](https://github.com/facebook/react/pull/35659)) - Use minus (`-`) instead of en dash for removed props in Performance Tracks ([@eps1lon](https://github.com/eps1lon) [#35649](https://github.com/facebook/react/pull/35649)) - Handle arrays with bigints in deep objects in Performance Tracks ([@eps1lon](https://github.com/eps1lon) [#35648](https://github.com/facebook/react/pull/35648)) - Don't enumerate typed array props in Performance Tracks in DEV ([@UditDewan](https://github.com/UditDewan) [#36913](https://github.com/facebook/react/pull/36913)) - Bail out of diffing wide objects and arrays in Performance Tracks ([@eps1lon](https://github.com/eps1lon) [#34742](https://github.com/facebook/react/pull/34742)) - Clear potentially large performance measures in DEV ([@hoxyq](https://github.com/hoxyq) [#34803](https://github.com/facebook/react/pull/34803)) - Fix missing else branch for renders with no props change in Performance Tracks ([@hoxyq](https://github.com/hoxyq) [#34837](https://github.com/facebook/react/pull/34837)) - Activity Fixes - Fix `useSyncExternalStore` missing store mutations that happened while an Activity tree was hidden ([@sophiebits](https://github.com/sophiebits) [#36947](https://github.com/facebook/react/pull/36947)) - Hide portal contents when an Activity is hidden ([@acdlite](https://github.com/acdlite) [#35091](https://github.com/facebook/react/pull/35091)) - Prevent metadata hoisting in hidden `<Activity>` trees ([@ronnakamoto](https://github.com/ronnakamoto) [#34983](https://github.com/facebook/react/pull/34983)) - Prevent errors thrown inside a hidden Activity from escaping to the visible UI ([@acdlite](https://github.com/acdlite) [#35074](https://github.com/facebook/react/pull/35074)) - Don't unhide a node if a direct parent Offscreen is still hidden ([@sebmarkbage](https://github.com/sebmarkbage) [#34821](https://github.com/facebook/react/pull/34821)) - Don't show internal `<Offscreen>` component in error messages ([@rickhanlonii](https://github.com/rickhanlonii) [#35763](https://github.com/facebook/react/pull/35763)) - Warn in DEV when a component appears to have been unblocked by a conditional `use()` ([@hoxyq](https://github.com/hoxyq), [@eps1lon](https://github.com/eps1lon): [#37104](https://github.com/facebook/react/pull/37104), [#37203](https://github.com/facebook/react/pull/37203), [#37491](https://github.com/facebook/react/pull/37491)) - Render transitions independently instead of entangling them into a single render ([@acdlite](https://github.com/acdlite) [#37290](https://github.com/facebook/react/pull/37290)) - Fix hang when updating a dehydrated boundary inside a hidden tree ([@gaearon](https://github.com/gaearon) [#37135](https://github.com/facebook/react/pull/37135)) - Don't reacquire Host Singletons during dev effect validation ([@gnoff](https://github.com/gnoff) [#37113](https://github.com/facebook/react/pull/37113)) - Only remove properties from Host Singletons on release ([@gnoff](https://github.com/gnoff) [#37112](https://github.com/facebook/react/pull/37112)) - Don't invoke effects on moved children in StrictMode ([@sophiebits](https://github.com/sophiebits) [#36948](https://github.com/facebook/react/pull/36948)) - Throw a clearer error when a rejected Promise is incorrectly instrumented ([@eps1lon](https://github.com/eps1lon) [#36328](https://github.com/facebook/react/pull/36328)) - Fix context propagation into Suspense fallbacks ([@acdlite](https://github.com/acdlite) [#36160](https://github.com/facebook/react/pull/36160)) - Fix context propagation through suspended Suspense boundaries ([@acdlite](https://github.com/acdlite) [#35839](https://github.com/facebook/react/pull/35839)) - Fix `useDeferredValue` getting stuck ([@gaearon](https://github.com/gaearon) [#36134](https://github.com/facebook/react/pull/36134)) - Update `useActionState` error message to say "action state" instead of "form state" ([@rickhanlonii](https://github.com/rickhanlonii) [#35790](https://github.com/facebook/react/pull/35790)) - Don't warn when rendering data block scripts ([@eps1lon](https://github.com/eps1lon) [#35953](https://github.com/facebook/react/pull/35953)) - Treat fibers with alternates as mounted in `getNearestMountedFiber` ([@sebmarkbage](https://github.com/sebmarkbage) [#35578](https://github.com/facebook/react/pull/35578)) - Always instrument the lazy initializer thenable ([@gnoff](https://github.com/gnoff) [#35521](https://github.com/facebook/react/pull/35521)) - Annotate cascading updates for DevTools performance tracks in DEV ([@huntie](https://github.com/huntie) [#34961](https://github.com/facebook/react/pull/34961)) - Resolve the `.default` export of a `React.lazy` as the canonical value ([@sebmarkbage](https://github.com/sebmarkbage) [#34906](https://github.com/facebook/react/pull/34906)) - Limit owner stacks to 10 frames ([@eps1lon](https://github.com/eps1lon) [#34864](https://github.com/facebook/react/pull/34864)) - Ensure `useEffectEvent` reads latest values in `forwardRef` and `memo()` components ([@eps1lon](https://github.com/eps1lon) [#34831](https://github.com/facebook/react/pull/34831)) ##### React DOM - Copy `source` onto the synthetic `toggle` event ([@lazerg](https://github.com/lazerg) [#37389](https://github.com/facebook/react/pull/37389)) - Update HTML parser rules for the new `<select>` parser ([@josepharhar](https://github.com/josepharhar) [#34804](https://github.com/facebook/react/pull/34804)) - Update `defaultValue` for `type="number"` inputs to match other input types ([@sophiebits](https://github.com/sophiebits) [#36980](https://github.com/facebook/react/pull/36980)) - Avoid setting `innerHTML` when it hasn't changed ([@sophiebits](https://github.com/sophiebits) [#36949](https://github.com/facebook/react/pull/36949)) - Forward the `nonce` option in `ReactDOM.preloadModule()` ([@UditDewan](https://github.com/UditDewan) [#36851](https://github.com/facebook/react/pull/36851)) - Support `fetchPriority` for module resources ([@TheAlexLichter](https://github.com/TheAlexLichter) [#36835](https://github.com/facebook/react/pull/36835)) - Track stylesheet preloads when explicitly preloaded to avoid unnecessary suspension ([@gnoff](https://github.com/gnoff) [#36386](https://github.com/facebook/react/pull/36386)) - Suggest correct casing for the misspelled `credentialless` iframe attribute ([@vmx906](https://github.com/vmx906) [#36322](https://github.com/facebook/react/pull/36322)) - Add `credentialless` as a recognized boolean attribute for iframes ([@vmx906](https://github.com/vmx906) [#36148](https://github.com/facebook/react/pull/36148)) - Prevent reentrant `finishedTask` from calling `completeAll` multiple times ([@gnoff](https://github.com/gnoff) [#36287](https://github.com/facebook/react/pull/36287)) - Update the CSS shorthand property list ([@kidonng](https://github.com/kidonng) [#35636](https://github.com/facebook/react/pull/35636)) - Support the `maskType` SVG prop ([@sleitor](https://github.com/sleitor) [#35921](https://github.com/facebook/react/pull/35921)) - Add support for `onFullscreenChange` and `onFullscreenError` events ([@chirokas](https://github.com/chirokas) [#34621](https://github.com/facebook/react/pull/34621)) - Include `submitter` in `submit` events ([@eps1lon](https://github.com/eps1lon) [#35590](https://github.com/facebook/react/pull/35590)) - Fire `onReset` when automatically resetting forms ([@eps1lon](https://github.com/eps1lon) [#35176](https://github.com/facebook/react/pull/35176)) - Use the `FormData` `submitter` parameter ([@jenseng](https://github.com/jenseng) [#29028](https://github.com/facebook/react/pull/29028)) - Fix form status reset when component state is updated ([@eps1lon](https://github.com/eps1lon) [#34075](https://github.com/facebook/react/pull/34075)) - Batch updates from `resize` events until the next frame ([@eps1lon](https://github.com/eps1lon) [#35117](https://github.com/facebook/react/pull/35117)) ##### React Server - Add `nonce` to rendered import maps ([@mattcosta7](https://github.com/mattcosta7) [#37339](https://github.com/facebook/react/pull/37339)) - Add an `onBrowserBailout` option to observe subtrees that defer to the browser ([@gnoff](https://github.com/gnoff) [#37193](https://github.com/facebook/react/pull/37193)) - Stop the caller's signal from retaining a finished render ([@unstubbable](https://github.com/unstubbable) [#37315](https://github.com/facebook/react/pull/37315)) - Construct the render lifetime controller only when it is needed ([@unstubbable](https://github.com/unstubbable) [#37357](https://github.com/facebook/react/pull/37357)) - Fix `react-dom/server` hanging on Deno ([@fraidev](https://github.com/fraidev) [#35235](https://github.com/facebook/react/pull/35235)) - Extend stack overflow recovery to retries in SSR ([@jackpope](https://github.com/jackpope) [#36977](https://github.com/facebook/react/pull/36977)) - Fix false-positive hydration mismatch on `nonce` attributes ([@MaxwellCohen](https://github.com/MaxwellCohen) [#37030](https://github.com/facebook/react/pull/37030)) - Guard shell-error callbacks instead of nulling them out on the request ([@eps1lon](https://github.com/eps1lon) [#36916](https://github.com/facebook/react/pull/36916)) - Stop firing `onAllReady` after the shell errored ([@eps1lon](https://github.com/eps1lon) [#36903](https://github.com/facebook/react/pull/36903)) - Treat an incomplete tree as an error during error recovery ([@acdlite](https://github.com/acdlite) [#36911](https://github.com/facebook/react/pull/36911)) - Fix non-script `modulepreload` tracking ([@fallintoplace](https://github.com/fallintoplace) [#36564](https://github.com/facebook/react/pull/36564)) - Finalize postponed `nextSegmentId` after the prelude flush ([@gaojude](https://github.com/gaojude) [#36779](https://github.com/facebook/react/pull/36779)) - Preserve `referrerPolicy` in image preload headers ([@ulises-jeremias](https://github.com/ulises-jeremias) [#36803](https://github.com/facebook/react/pull/36803)) - Allow pending work to specialize abort reasons ([@gnoff](https://github.com/gnoff) [#36586](https://github.com/facebook/react/pull/36586)) - Abort tasks that suspend after aborting during render ([@gnoff](https://github.com/gnoff) [#36585](https://github.com/facebook/react/pull/36585)) - Finish abort in a scheduled task ([@gnoff](https://github.com/gnoff) [#36580](https://github.com/facebook/react/pull/36580)) - Fix aborts during resumed rendering ([@gnoff](https://github.com/gnoff) [#36584](https://github.com/facebook/react/pull/36584)) - Track abort state on the request ([@gnoff](https://github.com/gnoff) [#36583](https://github.com/facebook/react/pull/36583)) - Model external work scheduling explicitly in the fb bundle ([@gnoff](https://github.com/gnoff) [#36576](https://github.com/facebook/react/pull/36576)) - Continue reporting aborted task errors after a fatal abort ([@gnoff](https://github.com/gnoff) [#36575](https://github.com/facebook/react/pull/36575)) - Disallow abort reentrancy ([@gnoff](https://github.com/gnoff) [#36574](https://github.com/facebook/react/pull/36574)) - Stop transpiling computed property names ([@eps1lon](https://github.com/eps1lon) [#36542](https://github.com/facebook/react/pull/36542)) - Fix crash when capturing the callsite of a stalled `use()` of a rejected Flight chunk ([@lubieowoce](https://github.com/lubieowoce) [#36544](https://github.com/facebook/react/pull/36544)) - Double invoke effects in Strict Mode during hydration ([@eps1lon](https://github.com/eps1lon) [#35961](https://github.com/facebook/react/pull/35961)) - Add additional task reentrancy protections in Fizz ([@gnoff](https://github.com/gnoff) [#36291](https://github.com/facebook/react/pull/36291)) - Don't outline Suspense boundaries with suspensey CSS during shell flush ([@gnoff](https://github.com/gnoff) [#35824](https://github.com/facebook/react/pull/35824)) - Push a stalled `use()` to the owner stack and debug task ([@eps1lon](https://github.com/eps1lon) [#35226](https://github.com/facebook/react/pull/35226)) - Fix `useId` tracking on replay ([@gnoff](https://github.com/gnoff) [#35518](https://github.com/facebook/react/pull/35518)) - Correctly handle replaying when hydrating ([@gnoff](https://github.com/gnoff) [#35494](https://github.com/facebook/react/pull/35494)) - Simplify the `createSuspenseBoundary` path ([@sebmarkbage](https://github.com/sebmarkbage) [#35087](https://github.com/facebook/react/pull/35087)) - Unify preamble-only fields to save a field on Suspense boundaries ([@sebmarkbage](https://github.com/sebmarkbage) [#35068](https://github.com/facebook/react/pull/35068)) - Unify prerender-only fields to save a field on Suspense boundaries ([@sebmarkbage](https://github.com/sebmarkbage) [#35067](https://github.com/facebook/react/pull/35067)) - Push halted awaits to the owner stack for late-arriving I/O info ([@unstubbable](https://github.com/unstubbable) [#35019](https://github.com/facebook/react/pull/35019)) - Include all Node.js APIs in the Bun entrypoint for `react-dom/server` ([@RiskyMH](https://github.com/RiskyMH) [#34193](https://github.com/facebook/react/pull/34193)) - Detach a Suspense boundary after flushing its segment ([@gnoff](https://github.com/gnoff) [#34694](https://github.com/facebook/react/pull/34694)) ##### React Server Components - Keep an element pending while a referenced row is resolving ([@unstubbable](https://github.com/unstubbable) [#37542](https://github.com/facebook/react/pull/37542)) - Fix `RangeError` from exponential debug info growth ([@unstubbable](https://github.com/unstubbable) [#37481](https://github.com/facebook/react/pull/37481)) - Abort the cache signal when debug objects are retained ([@unstubbable](https://github.com/unstubbable) [#37342](https://github.com/facebook/react/pull/37342)) - Transfer key validation of lazy nodes when they are unwrapped ([@unstubbable](https://github.com/unstubbable) [#37258](https://github.com/facebook/react/pull/37258)) - Add `pending_weak` to the Flight thenable protocol ([@acdlite](https://github.com/acdlite) [#37154](https://github.com/facebook/react/pull/37154)) - Outline and dedupe repeated strings ([@gaearon](https://github.com/gaearon) [#37147](https://github.com/facebook/react/pull/37147)) - Port Reply Server traversal guards to the Flight Client ([@eps1lon](https://github.com/eps1lon) [#37144](https://github.com/facebook/react/pull/37144)) - Define Flight chunk `.then` with `Object.defineProperty` ([@eps1lon](https://github.com/eps1lon) [#37109](https://github.com/facebook/react/pull/37109)) - Support Turbopack's experimental array format for chunks ([@sampoder](https://github.com/sampoder) [#37095](https://github.com/facebook/react/pull/37095)) - Limit fake JSX call site stacks to 10 frames ([@timneutkens](https://github.com/timneutkens) [#37086](https://github.com/facebook/react/pull/37086)) - Improve performance when decoding Flight replies ([@gnoff](https://github.com/gnoff) [#37090](https://github.com/facebook/react/pull/37090)) - Recognize Node 22+ V8 frames for `Promise` statics in debug info ([@gaearon](https://github.com/gaearon) [#36969](https://github.com/facebook/react/pull/36969)) - Tailor the warning for binary data serialized through `toJSON` (Node `Buffer`) ([@unstubbable](https://github.com/unstubbable) [#36873](https://github.com/facebook/react/pull/36873)) - Resolve models before `JSON.stringify` for faster serialization ([@mhart](https://github.com/mhart) [#36795](https://github.com/facebook/react/pull/36795)) - Prune debug info when chunks error ([@gnoff](https://github.com/gnoff) [#36782](https://github.com/facebook/react/pull/36782)) - Avoid main-thread stalls from large debug strings ([@unstubbable](https://github.com/unstubbable) [#36570](https://github.com/facebook/react/pull/36570)) - Fix stranded row content under Node stream backpressure ([@unstubbable](https://github.com/unstubbable) [#36516](https://github.com/facebook/react/pull/36516)) - Fix dropped `FormData` entries in `decodeReplyFromBusboy` ([@unstubbable](https://github.com/unstubbable) [#36468](https://github.com/facebook/react/pull/36468)) - Harden types and improve performance of Flight replies ([@eps1lon](https://github.com/eps1lon) [#36425](https://github.com/facebook/react/pull/36425)) - Add more cycle protections to Flight replies ([@eps1lon](https://github.com/eps1lon) [#36236](https://github.com/facebook/react/pull/36236)) - Transport `AggregateError.errors` ([@eps1lon](https://github.com/eps1lon) [#36156](https://github.com/facebook/react/pull/36156)) - Bail out early when a backing entry for `Blob` deserialization is not a `Blob` ([@eps1lon](https://github.com/eps1lon) [#36055](https://github.com/facebook/react/pull/36055)) - Clear chunk reason after successful module initialization ([@unstubbable](https://github.com/unstubbable) [#36024](https://github.com/facebook/react/pull/36024)) - Add support for transporting `Error.cause` ([@eps1lon](https://github.com/eps1lon) [#35810](https://github.com/facebook/react/pull/35810)) - Walk parsed JSON instead of using a reviver for faster RSC payload parsing ([@timneutkens](https://github.com/timneutkens) [#35776](https://github.com/facebook/react/pull/35776)) - Skip `transferReferencedDebugInfo` during debug info resolution ([@unstubbable](https://github.com/unstubbable) [#35795](https://github.com/facebook/react/pull/35795)) - Add `unstable_allowPartialStream` option to Flight Client ([@unstubbable](https://github.com/unstubbable) [#35731](https://github.com/facebook/react/pull/35731)) - Fix `encodeReply` for JSX with temporary references ([@unstubbable](https://github.com/unstubbable) [#35730](https://github.com/facebook/react/pull/35730)) - Fix debug channel flag in Node.js `renderToPipeableStream` ([@feedthejim](https://github.com/feedthejim) [#35724](https://github.com/facebook/react/pull/35724)) - Fix stack overflow in `visitAsyncNode` with deep async chains ([@unstubbable](https://github.com/unstubbable) [#35612](https://github.com/facebook/react/pull/35612)) - Allow Server Components to render context providers from client modules ([@rickhanlonii](https://github.com/rickhanlonii) [#35675](https://github.com/facebook/react/pull/35675)) - Allow overriding `request.timeOrigin` via `options.startTime` ([@lubieowoce](https://github.com/lubieowoce) [#35598](https://github.com/facebook/react/pull/35598)) - Warn once if `eval` is disabled in the dev environment ([@eps1lon](https://github.com/eps1lon) [#35661](https://github.com/facebook/react/pull/35661)) - Restore original function name in dev server callstacks served with `unsafe-eval` ([@eps1lon](https://github.com/eps1lon) [#35650](https://github.com/facebook/react/pull/35650)) - Fix `react-markup` types for server references ([@eps1lon](https://github.com/eps1lon) [#35634](https://github.com/facebook/react/pull/35634)) - Add more DoS mitigations to Flight replies and harden Flight ([@unstubbable](https://github.com/unstubbable) [#35632](https://github.com/facebook/react/pull/35632)) - Allow cyclic references to be serialized when unwrapping lazy elements ([@unstubbable](https://github.com/unstubbable) [#35471](https://github.com/facebook/react/pull/35471)) - Improve cyclic thenable detection in Flight reply server ([@cvan20191](https://github.com/cvan20191) [#35369](https://github.com/facebook/react/pull/35369)) - Add extra loop protection to Flight reply server ([@sebmarkbage](https://github.com/sebmarkbage) [#35351](https://github.com/facebook/react/pull/35351)) - Patch Promise cycles and `toString` on Server Functions ([@sebmarkbage](https://github.com/sebmarkbage) [#35345](https://github.com/facebook/react/pull/35345)) - Move `react-server-dom-webpack/*.unbundled` to private `react-server-dom-unbundled` ([@eps1lon](https://github.com/eps1lon) [#35290](https://github.com/facebook/react/pull/35290)) - Never parse `then` functions in Flight replies ([@sebmarkbage](https://github.com/sebmarkbage) [#35289](https://github.com/facebook/react/pull/35289)) - Patch Flight reply server with fixes from Flight Client ([@sebmarkbage](https://github.com/sebmarkbage) [#35277](https://github.com/facebook/react/pull/35277)) - Complete the list of Node.js internal Promise awaits ([@eps1lon](https://github.com/eps1lon) [#35161](https://github.com/facebook/react/pull/35161)) - Reduce risk of maximum call stack exceeded when emitting async sequences ([@eps1lon](https://github.com/eps1lon) [#35159](https://github.com/facebook/react/pull/35159)) - Fix pending chunks count for streams and async iterables in DEV ([@unstubbable](https://github.com/unstubbable) [#35143](https://github.com/facebook/react/pull/35143)) - Fix broken byte stream parsing caused by buffer detachment ([@unstubbable](https://github.com/unstubbable) [#35127](https://github.com/facebook/react/pull/35127)) - Fix `hasReadable` flag in Node.js clients' debug channel ([@unstubbable](https://github.com/unstubbable) [#35039](https://github.com/facebook/react/pull/35039)) - Fix debug info filtering to include later resolved I/O ([@unstubbable](https://github.com/unstubbable) [#35036](https://github.com/facebook/react/pull/35036)) - Cache the value when visiting the same I/O or Promise along different paths ([@sebmarkbage](https://github.com/sebmarkbage) [#35005](https://github.com/facebook/react/pull/35005)) - Clone subsequent I/O nodes when resolved more than once ([@sebmarkbage](https://github.com/sebmarkbage) [#35003](https://github.com/facebook/react/pull/35003)) - Fix hang after resolving cyclic references ([@unstubbable](https://github.com/unstubbable) [#34988](https://github.com/facebook/react/pull/34988)) - Allow passing DEV-only `startTime` as an option ([@sebmarkbage](https://github.com/sebmarkbage) [#34912](https://github.com/facebook/react/pull/34912)) - Ignore bound-anonymous-fn resources as they're not considered I/O ([@sebmarkbage](https://github.com/sebmarkbage) [#34911](https://github.com/facebook/react/pull/34911)) - Fix detached `ArrayBuffer` error when streaming typed arrays ([@unstubbable](https://github.com/unstubbable) [#34849](https://github.com/facebook/react/pull/34849)) - Exclude RSC stream if the stream resolves in a task ([@sebmarkbage](https://github.com/sebmarkbage) [#34838](https://github.com/facebook/react/pull/34838)) - Forward the current environment when forwarding I/O entries ([@sebmarkbage](https://github.com/sebmarkbage) [#34836](https://github.com/facebook/react/pull/34836)) - Look for moved debug info when logging component performance track ([@sebmarkbage](https://github.com/sebmarkbage) [#34839](https://github.com/facebook/react/pull/34839)) - Respect `displayName` of Promise instances on the server ([@sebmarkbage](https://github.com/sebmarkbage) [#34825](https://github.com/facebook/react/pull/34825)) - Avoid unnecessary indirection when serializing debug info ([@unstubbable](https://github.com/unstubbable) [#34797](https://github.com/facebook/react/pull/34797)) - Fix preload `as` attribute for stylesheets ([@unstubbable](https://github.com/unstubbable) [#34760](https://github.com/facebook/react/pull/34760)) - Don't serialize `toJSON` in debug path and omit wide arrays ([@sebmarkbage](https://github.com/sebmarkbage) [#34759](https://github.com/facebook/react/pull/34759)) - Add support for `<Activity>` ([@eps1lon](https://github.com/eps1lon) [#34697](https://github.com/facebook/react/pull/34697)) ### [`v19.2.8`](https://github.com/react/react/releases/tag/v19.2.8): 19.2.8 (July 21st, 2026) [Compare Source](https://github.com/react/react/compare/v19.2.7...v19.2.8) ##### React Server Components - Performance improvements when decoding ([#37087](https://github.com/facebook/react/pull/37087) by [@eps1lon](https://github.com/eps1lon)) </details> --- ### Configuration 📅 **Schedule**: (UTC) - Branch creation - At any time (no schedule defined) - Automerge - At any time (no schedule defined) 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about these updates again. --- - [ ] If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate CLI](https://github.com/renovatebot/renovate).

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Update react monorepo 9c6c48bd77

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renovate-bot changed title from ~~Update react monorepo~~ to Update react monorepo to v19.3.0

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Update react monorepo to v19.3.0 #130

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v19.3.0

New React Features

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React

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React Server Components

v19.2.8: 19.2.8 (July 21st, 2026)

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`v19.3.0`

`v19.2.8`: 19.2.8 (July 21st, 2026)