React Native’s New Architecture: Sync and async rendering

React Native's New Architecture significantly enhances performance and developer experience in version 0.76, resolving long-standing issues by removing the asynchronous bridge between JavaScript and native code and introducing the JavaScript Interface (JSI) for direct native calls. This redesign improves the efficiency of synchronous and asynchronous rendering, allowing for shared memory between JavaScript and native layers, thereby eliminating visual glitches and improving the user experience. The New Architecture supports advanced React 18+ features and ensures backward compatibility, while tools like the React Native Upgrade Helper facilitate migration from the old system. Performance benchmarks demonstrate a notable speed increase, with the New Architecture consistently outperforming the legacy system in various scenarios, highlighting its advantages for developers seeking to optimize their apps.

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