React Native 0.75 vs 0.74: What’s Changed?
1 ) Introduction to React Native 0.74 and 0.75
React Native 0.74 introduced Yoga 3.0 and made the Bridgeless New Architecture the default under the new architecture framework.
React Native 0.75 focused on stabilizing the New Architecture, adding support for percentage values in layout, and updating templates and initialization processes.
2 ) Key Updates in React Native 0.74
Yoga 3.0 was integrated, enhancing the layout engine's capabilities.
The Bridgeless mode under the New Architecture was enabled by default, simplifying the rendering pipeline and improving performance.
3 ) Enhancements in React Native 0.75
Support for percentage values in layouts was added, allowing more flexible UI designs.
Continued stabilization of the New Architecture, making it more reliable for production use.
Updates to templates and project initialization improved the developer experience and facilitated smoother project setups.
4 ) Developer Experience and Migration Insights
Developers upgrading from versions like 0.67.5 to 0.74 have reported challenges due to compatibility issues with packages, native code, and ARM machine support.
Migration strategies include using the React Native Upgrade Helper tool to apply version diffs manually and resolve issues incrementally.
Specific native module APIs have changed, especially in handling Fabric UI components and native view instances, requiring updates in custom native modules.
Android deprecated `reactContext.fabricUIManager`, replaced by `UIManagerHelper` for UI management.
iOS developers need to adjust how to access the `RCTHost` object in native code.
5 ) Common Issues and Workarounds
SafeAreaView compatibility issues were observed, especially within navigation drawers, resolved by wrapping components with `SafeAreaProvider`.
Breaks in third party dependencies such as `op sqlite` required API adaptations due to major version upgrades (e.g., from v6 to v12 ).
Contributions to open source cryptography libraries helped fix regressions in dependencies like `react native quick crypto` to maintain consistent behavior across versions.
6 ) Conclusion and Forward Look
React Native 0.75 builds upon the solid foundation laid by 0.74, emphasizing stability and enhanced layout capabilities.
While upgrading can be complex due to architectural and dependency shifts, the React Native community and tooling provide resources and guidance to ease transitions.
Embracing the new architecture and updates promises better performance and feature richness moving forward.
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