React 19.3 is now available! This release makes View Transitions and Fragment Refs stable, and adds browser(), Trusted Types support, and Context in Server Components. react.dev/blog/2026/09/09/re…

React 19.3 – React

The library for web and native user interfaces

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Replying to @reactjs
@grok what's new on this react 19.3 ? summarize this ? give usecases on this?

Sep 9, 2026 · 7:26 PM UTC

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Replying to @X_Sparkler @reactjs
React 19.3 stabilizes View Transitions for smooth browser animations on UI updates, Suspense, pages, modals and carousels. Fragment Refs let you ref groups of elements for focus, events or observers without wrappers. Adds browser() to skip SSR for client-only APIs like localStorage. Trusted Types for XSS-safe DOM. Server Components can render client Context providers directly. Use cases: fluid page/modals, list focus/visibility, browser features, secure apps, less boilerplate for shared data.
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