Keynote
summary
React announces React 19.2 with concrete runtime and server features: a new activity hidden mode that defers updates while pre-warming sibling renders for suspense, partial pre-rendering for CDN-served shells, and Performance Tracks for Chromium profiling. Canary adds view transition and fragment refs for scoped animations and platform composition. A new React compiler ships with automatic memoization, an ESLint plugin that finds setState-in-render and ref-during-render bugs, and reported Meta Quest store wins up to 12% faster loads and some interactions >2x. Lifetime npm downloads hit 6 billion.
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chapters (6)
- 0:00React ecosystem updates
- 7:40React 19.2 new features
- 17:55View transitions in React
- 27:38Fragment refs composition
- 33:44React compiler release
- 49:07React Foundation formation
