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This PR contains the following updates:
19.1.12→19.2.819.1.9→19.2.319.1.1→19.2.319.1.1→19.2.3Release Notes
facebook/react (react)
v19.2.3: 19.2.3 (December 11th, 2025)Compare Source
React Server Components
v19.2.2: 19.2.2 (December 11th, 2025)Compare Source
React Server Components
react-server-dom-webpack/*.unbundledto privatereact-server-dom-unbundled(@eps1lon #35290)v19.2.1: 19.2.1 (December 3rd, 2025)Compare Source
React Server Components
v19.2.0Compare Source
Below is a list of all new features, APIs, and bug fixes.
Read the React 19.2 release post for more information.
New React Features
<Activity>: A new API to hide and restore the UI and internal state of its children.useEffectEventis a React Hook that lets you extract non-reactive logic into an Effect Event.cacheSignal(for RSCs) lets your know when thecache()lifetime is over.New React DOM Features
resume: to resume a prerender to a stream.resumeAndPrerender: to resume a prerender to HTML.resumeToPipeableStream: to resume a prerender to a stream.resumeAndPrerenderToNodeStream: to resume a prerender to HTML.prerenderAPIs to return apostponedstate that can be passed to theresumeAPIs.Notable changes
<ViewTransition>Component. React will batch as much reveals as possible before the first paint while trying to hit popular first-contentful paint metrics.prerender,renderToReadableStream) to server-side-rendering APIs for Node.js:IDs generated by useIdAll Changes
React
<Activity />was developed over many years, starting beforeClassComponent.setState(@acdlite @sebmarkbage and many others)%oplaceholder (@eps1lon #34198)useDeferredValueloop in popstate event (@acdlite #32821)useDeferredValue(@acdlite #34376)cacheSignal(@sebmarkbage #33557)React DOM
:for IDs generated byuseId(@sebmarkbage, @eps1lon: #32001, #33342#33099, #33422)nonceto be used on hoistable styles (@Andarist #32461)React.useinsideReact.lazy-ed Component (@hi-ogawa #33941)progressiveChunkSizeoption for server-side-rendering APIs (@sebmarkbage #33027)React Server Components
<img>and<link>using hints before they're rendered (@sebmarkbage #34604)filterStackFrame(@eps1lon #33707)React Reconciler
on*handlers to account for upcoming experimental APIsv19.1.4: 19.1.4 (December 11th, 2025)Compare Source
React Server Components
v19.1.3: 19.1.3 (December 11th, 2025)Compare Source
React Server Components
react-server-dom-webpack/*.unbundledto privatereact-server-dom-unbundled(@eps1lon #35290)v19.1.2: 19.1.2 (December 3rd, 2025)Compare Source
React Server Components
Configuration
📅 Schedule: 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.
👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.
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