PodRocket Whats new in React 19.2 with Shruti Kapoor
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Dec 4, 2025 Shruti Kapoor, a staff engineer and educator expert in React, dives into the latest features of React 19.2. She breaks down innovations like Activity for easy state restoration and View Transitions for seamless animations. The discussion covers useEffectEvent for better event handling and cacheSignal for efficient server interactions. Shruti also touches on new Chrome DevTools performance tracks and the stable React Compiler, making your development experience smoother. It's an insightful look into React's evolution!
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Watch Effects And Cleanup With Activity
- Avoid Activity for components that rely on background effects because hidden components stop running useEffect.
- Add explicit cleanup for DOM side effects (e.g., stop videos) to prevent lingering behavior when Activity hides components.
View Transitions Move Blocks, Not Parts
- View Transitions animate components as visual blocks, enabling automatic zoom, pan, or fade transitions.
- Combined with Activity, they produce smooth state-restoration plus animated navigation without heavy animation libraries.
Move Nonreactive Logic To useEffectEvent
- Use useEffectEvent to separate non-reactive event logic from reactive effect logic to avoid unnecessary dependencies.
- Keep reactive updates in useEffect and move one-off or event-driven logic into useEffectEvent to prevent dependency-array churn.