WebGPU Worklets enable developers to run libraries such as react-native-wgpu and Three.js on the UI Thread via Reanimated Worklets, allowing for smooth 3D animations. The integration requires specific versions of Reanimated and Worklets, and includes guidelines for initializing GPU access, handling gestures, and optimizing performance with ModulesConfig.

Reanimated 4 has been released as a stable version, introducing a new CSS-compatible animation API that simplifies state-triggered animations in React Native. While the focus is on declarative CSS animations for ease of use and optimization, worklets remain essential for complex animation scenarios. The update ensures compatibility with previous versions and aims to enhance developers' experiences in creating dynamic mobile app interfaces.