Building blocks of React Native
summary
Roadmap shows concrete changes: the renderer keeps platform views but React Native adds useLayoutEffect runs synchronously on the new architecture, DOM-like APIs (focus, children APIs, IntersectionObserver, ResizeObserver), and a shim layer called react-native-dom that exposes div/span/img semantics while still rendering native primitives. Yoga gains gap, percent units, VH/VW, percent borderRadius, position: static and space-evenly plus many bug fixes. Styling moves to Styx with media queries and pseudo classes, is type-safe, and partners like Microsoft are already experimenting.
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