React 19.3: View Transitions and Fragment Refs Go Stable
React 19.3 shipped on September 9, 2026. Two APIs that have been sitting in the experimental drawer since the April 2025 React Labs post โ <ViewTransition> and Fragment Refs โ are now stable, joined by a browser() escape hatch for SSR, Trusted Types passthrough, and Context rendering in Server Components. There are no breaking changes, no deprecations, no codemods, and no upgrade guide, because none are needed. The interesting question isn't whether to bump the version. It's which of these APIs earn a place in your codebase.
