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Next.js 16.2 • Up to ~60% faster rendering • Up to ~400% faster 𝚗𝚎𝚡𝚝 𝚍𝚎𝚟 startup • Server Function 𝚍𝚎𝚟 logging • Redesigned error page • Better hydration errors • 𝙴𝚛𝚛𝚘𝚛.𝚌𝚊𝚞𝚜𝚎 display in error overlay nextjs.org/blog/next-16-2

We contributed a change to React that makes Server Components payload deserialization up to ~350% faster. In real Next.js apps, that's 25–60% faster rendering to HTML.

The default production error page has been redesigned. If you haven't defined a custom 𝚎𝚛𝚛𝚘𝚛.𝚝𝚜𝚡 or 𝚐𝚕𝚘𝚋𝚊𝚕-𝚎𝚛𝚛𝚘𝚛.𝚝𝚜𝚡, the built-in fallback now has a cleaner, more modern look.

Hydration mismatch errors now show a + 𝙲𝚕𝚒𝚎𝚗𝚝 / - 𝚂𝚎𝚛𝚟𝚎𝚛 label, so you can clearly spot each environment.