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Next.js 16.2: AI Improvements • Next.js-aware browser lets Agents improve your app • 𝙰𝙶𝙴𝙽𝚃𝚂.𝚖𝚍 included in 𝚌𝚛𝚎𝚊𝚝𝚎-𝚗𝚎𝚡𝚝-𝚊𝚙𝚙 by default • Browser errors forwarded to terminal • Dev server lock file prevents duplicate servers nextjs.org/blog/next-16-2-ai
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𝚌𝚛𝚎𝚊𝚝𝚎-𝚗𝚎𝚡𝚝-𝚊𝚙𝚙 now ships 𝙰𝙶𝙴𝙽𝚃𝚂.𝚖𝚍 by default, pointing agents to version-matched docs bundled in 𝚗𝚘𝚍𝚎_𝚖𝚘𝚍𝚞𝚕𝚎𝚜. This hit a 100% eval pass rate vs. 79% for skill-based approaches.
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Next.js now forwards all browser errors to the terminal during development, making it easy for agents to fix client-side bugs.
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Turbopack: What's New in Next.js 16.2 • Up to ~375% faster updates with Server Fast Refresh • Improved Web Workers support • Subresource Integrity (SRI) support • Tree shaking for dynamic 𝚒𝚖𝚙𝚘𝚛𝚝() • 200+ bug fixes nextjs.org/blog/next-16-2-tu…
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Server Fast Refresh brings browser-style hot reloading to server code. Only the changed module is reloaded instead of clearing the entire 𝚛𝚎𝚚𝚞𝚒𝚛𝚎.𝚌𝚊𝚌𝚑𝚎 chain. Up to ~375% faster server-side updates in real Next.js apps.
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Turbopack now tree shakes destructured dynamic imports the same way it does static imports. 𝚌𝚘𝚗𝚜𝚝 { 𝚌𝚊𝚝 } = 𝚊𝚠𝚊𝚒𝚝 𝚒𝚖𝚙𝚘𝚛𝚝('./𝚕𝚒𝚋') Unused exports are removed from the bundle.
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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
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Hydration mismatch errors now show a + 𝙲𝚕𝚒𝚎𝚗𝚝 / - 𝚂𝚎𝚛𝚟𝚎𝚛 label, so you can clearly spot each environment.
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The error overlay now displays up to five levels of 𝙴𝚛𝚛𝚘𝚛.𝚌𝚊𝚞𝚜𝚎 chains, making it easier to trace errors that wrap other errors.
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Next.js installs will soon include version-matched docs, giving agents context on new and recently updated APIs. In our evals, this improved success rates by ~20%. Try it out: 𝚗𝚙𝚡 𝚌𝚛𝚎𝚊𝚝𝚎-𝚗𝚎𝚡𝚝-𝚊𝚙𝚙@𝚌𝚊𝚗𝚊𝚛𝚢
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As more Next.js apps are built with AI, we've been focusing on improving the agent experience. Here's what we've learned, and how we're thinking about agents as first-class users ↓ nextjs.org/blog/agentic-futu…
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GPT 5.3 Codex has achieved the highest success rate on Next.js evals. View the leaderboard ↓ vercel.fyi/next-evals-2-5
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Two ways to handle a blocking component in Next.js: • Cache: so it can be prerendered with the rest of the page. • Stream: so the rest of the page doesn't have to wait for it.
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How we're making Turbopack fast. In this deep dive, @lukeisandberg explains how Turbopack uses incremental caching and compilation so the cost of work scales with your change, not the size of your app.
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