TMiR 2024-12: React 19 is here 🎉 2024 is over

New releasesRelay v18.2React-admin v5.4Preact v10.25Playwright 1.49Astro 5.0Radon IDEReact 19 compat for react-redux and Redux ToolkitMain ContentReact 19 is actually out (blog post)Upgrade guide from April 2024TKDodo: Ref Callbacks, React 19, and the CompilerIntroducing React Native Screens 4.0.0React 19 support in React Native TBD (0.77/78?)Expo has experimental supportNext 15.1experimental: css inliningReact Native Fast IO now in prereleaseCreate Target Widgets in Expo⚡ Lightning round ⚡React Native demo for Android XRIf Not React, Then What?Vitest vs. JestAiden Bai “render-shaming” sites while working on React ScanReact Scan adds React Native supportLenz’s Weber’s testing-library/react-render-stream-testing-library (00:00) - This Month In React - December (01:45) - Sponsored by [Infinite Red](https://infinite.red) (02:46) - New Releases (02:48) - [Relay v18.2](https://github.com/facebook/relay/rele