The latest release of React Native 0.81 brings a game-changing update for iOS developers — precompiled builds. Thanks to a collaboration between Meta and Expo, build times can now be reduced by up to 10×, making development significantly faster and more efficient.
With this version, React Native ships a prebuilt binary package called ReactNativeDependencies.xcframework that bundles libraries like Folly, Glog, and DoubleConversion. Instead of compiling these dependencies from scratch on every clean build, developers can now link directly to the precompiled framework. This means faster onboarding, smoother CI/CD pipelines, and more consistent results across machines.
The feature is opt-in for now (via RCT_USE_PREBUILT_RNCORE=1), but Expo SDK 54 will enable it by default, ensuring seamless adoption for developers in the Expo ecosystem. The move also aligns React Native more closely with Apple’s native toolchain through XCFrameworks and paves the way for future Swift Package Manager (SPM) integration.
For dev teams and businesses, this shift means faster release cycles, lower infrastructure costs, and a better developer experience. React Native 0.81 isn’t just an update — it’s a milestone in modernizing cross-platform app development.
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