The Evolving Architecture of React Native
React Native has long enabled developers to build Android and iOS applications using JavaScript and React, rendering real UI components with native platform elements. However, the original architecture — relying on a Java/C++ bridge between the JavaScript thread and the native thread — introduced performance bottlenecks, especially in dynamic interactions. The new architecture addresses these limitations head-on.
The Four Pillars of the New Architecture
Key Improvements and Benefits
React Native's new architecture represents a fundamental shift in how JavaScript and native code interact on mobile devices. By eliminating the asynchronous bridge bottleneck and introducing JSI, Fabric, Turbo Modules, and CodeGen, Meta has made React Native a much more competitive option for building high-performance cross-platform mobile applications. Developers migrating to the new architecture will see measurable improvements in startup time, animation smoothness, and overall app responsiveness.