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Next.js
@nextjs.org

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.

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Next.js
@nextjs.org

Server Function calls are now logged in the terminal during 𝚗𝚎𝚡𝚝 𝚍𝚎𝚟. You'll see the function name, arguments, execution time, and source file.

Next.js
@nextjs.org

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.

Next.js
@nextjs.org

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

Next.js
@nextjs.org

The error overlay now displays up to five levels of 𝙴𝚛𝚛𝚘𝚛.𝚌𝚊𝚞𝚜𝚎 chains, making it easier to trace errors that wrap other errors.