React Native Version 0.84 Release
Article Summary
React Native 0.84 just dropped with automatic performance wins for every app. No migration needed, no config changes required—just faster execution and lower memory usage out of the box.
The React Native team released version 0.84, making Hermes V1 the default JavaScript engine across iOS and Android. This release also ships precompiled iOS binaries by default and continues removing Legacy Architecture code, with over 650 commits from 95 contributors.
Key Takeaways
- Hermes V1 now default: automatic performance gains with zero configuration changes
- Precompiled iOS binaries slash clean build times significantly
- Legacy Architecture code removed from iOS builds, reducing app size
- Node.js 22 minimum requirement enables modern JavaScript features
- React 19.2.3 synced with accessibility and URL API improvements
Critical Insight
Every React Native app automatically gets measurable performance improvements and faster iOS builds without any migration work required.
