Next.js: Cache Fixes and Performance Updates
Twenty pull requests were merged addressing critical caching bugs, improving Firefox compatibility, and upgrading React dependencies. Key fixes include search parameter cache corruption and Firefox refresh loops in streaming pages.
Duration: PT2M6S
Episode overview
This episode is a short developer briefing from Next.js.
It explains recent repository work in plain language.
- Show: Next.js
- Published: 2026-05-27T10:02:11Z
- Audio duration: PT2M6S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good morning. This is your Next.js development briefing for May 27th, 2026.
Twenty pull requests were merged yesterday, focusing on cache reliability and browser compatibility improvements.
Andrew Clark merged a critical bugfix for incorrect search params stored in cache. The route cache was incorrectly keying entries, causing stale search strings to appear in browser address bars after navigation. This resolves reported issues with router.push and router.replace operations.
Josh Story merged improvements to notFound recovery in error pathways, effectively relanding previous changes that handle cache components behavior when pages call notFound. This addresses connection closed problems during static prerendering.
The team also addressed a Firefox-specific issue. An update fixed refresh loops on initial load of streaming pages in development mode, where Firefox's transferSize property behavior was causing incorrect cache restore detection.
Tobias Koppers merged a significant Turbopack fix addressing an unsound IntoIterator implementation for ReadRef, which was causing use-after-free panics during JSON serialization. This required updates across 29 files to ensure memory safety.
Nearby episodes from Next.js
- Turbopack JavaScript Compatibility and Debugging Improvements
- Weekly Recap - Turbopack Optimization & Developer Experience
- Developer Experience Improvements and Turbopack Optimizations
- React Upgrade and Turbopack Fixes
- Developer Tooling and Cache Optimization Updates
- Developer Tools Organization
- Weekly Recap - DevTools Enhancements & Build System Improvements
- DevTools Overhaul and Build System Fixes