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react

19.3.0738M downloads/moreact/react ↗New releases in your daily digest, changelog included.

React is a JavaScript library for building user interfaces.

Last release 2 days ago
02 Oct 2026
Ships on a steady schedule
a new release about every 9 days
Nearly every release is documented
notes for 60 of the last 60 stable releases
2 versions withdrawn
withdrawn after publishing
15 years old
2961 releases · first in 2011

Release timeline

2961 releases since 2011

20112013201520172019

Releases

19.3.09 Sept 20262 sources agree
Below is a list of all new features, APIs, and bug fixes.
Below is a list of all new features, APIs, and bug fixes.

Read the React 19.3 release post for more information.

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 transfer
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From the same repository

react/react

react

Release timeline

Releases

New React Features

New React DOM Features

Notable changes

All Changes

React

React DOM

React Server

React Server Components

From the same repository