React Native: 0.85 Performance Debugging and Stability Updates

React Native's 0.85 branch received significant performance debugging enhancements and stability fixes through six merged pull requests. The updates include comprehensive frame timing tools, Fast Refresh improvements, and thread safety fixes.

Duration: PT2M12S

Episode overview

This episode is a short developer briefing from React Native.

It explains recent repository work in plain language.

  • Show: React Native
  • Published: 2026-05-01T00:00:00Z
  • Audio duration: PT2M12S

Transcript excerpt

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Good morning, it's May 1st, 2026. I'm your host with today's React Native development update.

The React Native team focused heavily on the 0.85 stable branch yesterday, merging six pull requests that strengthen performance debugging capabilities and fix critical stability issues.

Motiz88 merged the largest update, backporting performance debugging improvements across 62 files. This comprehensive change brings frame timing observers, screenshot encoding tools, and tracing helper functions from the main branch to 0.85, giving developers better visibility into their app's performance…

The same contributor also merged Fast Refresh enhancements, adding performance markers and an experimental Chrome DevTools Protocol event called "unstable_fastRefreshComplete." This gives developers more precise timing data when Fast Refresh updates complete.

Three smaller but important fixes rounded out the 0.85 updates: a fix for silent tar extraction failures on EdenFS file systems, debugger frontend updates to support the new performance features, and corrections to the iOS build process for dynamic frameworks.

On the main branch, Pieter De Baets addressed two critical thread safety issues caught by…

Nearby episodes from React Native

  1. Weekly Recap - Infrastructure & Code Quality
  2. Threading Fixes and Version Updates
  3. Weekly Recap - Performance Optimization and Stability
  4. Image Prefetching Consolidation
  5. Feature Flags and Android Improvements
  6. Weekly Recap - Infrastructure Cleanup and Build Reliability
  7. iOS Build Fixes and Performance Logger Refactoring
  8. iOS Build Fixes and Paper Renderer Cleanup