{"id":19858,"date":"2025-10-22T15:45:08","date_gmt":"2025-10-22T13:45:08","guid":{"rendered":"https:\/\/pagepro.co\/blog\/?post_type=insight&#038;p=19858"},"modified":"2025-10-22T15:45:08","modified_gmt":"2025-10-22T13:45:08","slug":"next-js-16-cache-components-stable-turbopack-and-ai-devtools","status":"publish","type":"insight","link":"https:\/\/pagepro.co\/blog\/react-tldr\/next-js-16-cache-components-stable-turbopack-and-ai-devtools\/","title":{"rendered":"Next.js 16: Cache Components, Stable Turbopack, and AI DevTools"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Vercel decided to surprise us by releasing the newest version of Next.js just a few hours ahead of <strong>Next.js Conf 2025<\/strong>. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">You can upgrade to the newest version with <\/span><span style=\"font-weight: 400;\"><code>npx @next\/codemod@canary upgrade latest<\/code> command or<\/span><span style=\"font-weight: 400;\"> start a new project with <\/span><span style=\"font-weight: 400;\"><code>npx create-next-app@latest<\/code><\/span><\/p>\n<p><span style=\"font-weight: 400;\">Let\u2019s have a look at the most exciting changes we can expect.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Turbopack is now the <\/span><b>default bundler<\/b><span style=\"font-weight: 400;\"> for all new apps. Developers can expect <\/span><b>2\u20135\u00d7 faster builds<\/b><span style=\"font-weight: 400;\"> and <\/span><b>up to 10\u00d7 faster Fast Refresh,<\/b><span style=\"font-weight: 400;\"> no configuration needed. Filesystem caching will reuse build artifacts across runs.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Next.js 16 introduces <\/span><b>Cache Components<\/b><span style=\"font-weight: 400;\">, a new caching model built around the <\/span><span style=\"font-weight: 400;\">use cache<\/span><span style=\"font-weight: 400;\"> directive and <\/span><b>Partial Pre-Rendering (PPR)<\/b><span style=\"font-weight: 400;\">. Enjoy the speed of static rendering with the flexibility of dynamic content.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The new <\/span><b>Next.js DevTools MCP<\/b><span style=\"font-weight: 400;\"> integrates with the <\/span><b>Model Context Protocol<\/b><span style=\"font-weight: 400;\">, letting AI agents analyze your app\u2019s routing, caching, and rendering behavior directly inside your workflow.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">proxy.ts<\/span><span style=\"font-weight: 400;\"> replaces <\/span><span style=\"font-weight: 400;\">middleware.ts<\/span><span style=\"font-weight: 400;\">, making the app\u2019s <\/span><b>network boundary clearer<\/b><span style=\"font-weight: 400;\"> and more predictable. The logic stays the same. All you have to do is rename and update the export to <code>proxy()<\/code>.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Layout deduplication now avoids downloading shared layouts multiple times, while incremental prefetching fetches only what\u2019s missing. The new addition of\u00a0 APIs like <code>updateTag()<\/code><\/span><span style=\"font-weight: 400;\"> and <code>refresh()<\/code><\/span><span style=\"font-weight: 400;\">\u00a0will make refreshing data in real time much easier.<\/span><\/li>\n<li aria-level=\"1\"><span style=\"font-weight: 400;\">The <code>experimental.ppr<\/code><\/span><span style=\"font-weight: 400;\"> and <code>experimental.dynamicIO<\/code><\/span><span style=\"font-weight: 400;\">\u00a0flags have been replaced by the new <\/span><b>Cache Components<\/b><span style=\"font-weight: 400;\"> model.<\/span><\/li>\n<li aria-level=\"1\">From this version,<b> React 19.2 <\/b>is supported<b>,<\/b>\u00a0introducing <b>View Transitions<\/b>, <code>useEffectEvent()<\/code>, and a new <code>&lt;Activity \/&gt;<\/code>\u00a0component for rendering background tasks.<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Several old features have been removed, including <\/span><b>AMP support<\/b><span style=\"font-weight: 400;\">, the <\/span><b>next lint<\/b><b> command<\/b><span style=\"font-weight: 400;\">, and <\/span><b>legacy image settings<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">To learn more, <\/span><a href=\"https:\/\/nextjs.org\/blog\/next-16\"><span style=\"font-weight: 400;\"><strong>read the official release post<\/strong><\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Want to learn more about Next.js? Download <a href=\"https:\/\/pagepro.co\/ebook\/ebook-next-js-for-cto\"><strong>the CTO\u2019s Ultimate Guide to Next.js<\/strong><\/a> <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Subscribe to <\/span><a href=\"https:\/\/www.frictionlesspost.com\/\"><b>Frictionless<\/b><\/a><span style=\"font-weight: 400;\">, the weekly newsletter by our CEO, <\/span><b>Chris Lojniewski<\/b><span style=\"font-weight: 400;\">, to stay up to date.<\/span><\/p>\n","protected":false},"author":49,"featured_media":19859,"template":"","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Next.js 16: Cache Components, Stable Turbopack, and AI DevTools - Pagepro<\/title>\n<meta name=\"description\" content=\"React TL;DR helps you decide which content is worth your time. It is all selected by our senior developers. 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