Dev Tools · 2h ago
Next.js 16.3 previews Instant Navigations and faster caching
Next.js 16.3 introduces Instant Navigations for faster page transitions, plus new dev tools like Instant Insights and a Navigation Inspector. The update also includes declarative caching improvements and a Playwright helper for testing. Separately, the cnfast library offers a 3.8x faster drop-in replacement for tailwind-merge in React apps.
Meridian48 take
The Instant Navigations feature could meaningfully improve user-perceived performance, but its real-world impact depends on adoption and compatibility with existing Next.js projects.
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Next.js 16.3, WebSocket on Vercel, cnfast, Instant Navigations, React Libraries for 2026, What RSCs Can Do →
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