Josh

Coding agents hit Next.js errors, unclear docs, and non-obvious workarounds while they build. They often solve the task and move on without reporting what failed. For Next.js 16.4, we created a new agent feedback system. 𝚎𝚡𝚙𝚎𝚛𝚒𝚖𝚎𝚗𝚝𝚊𝚕: { 𝚊𝚐𝚎𝚗𝚝𝙵𝚎𝚎𝚍𝚋𝚊𝚌𝚔: 𝚝𝚛𝚞𝚎, } Learn more about the feature ↓

built Stamp, a Gmail-style inbox, to explore the new 𝚗𝚊𝚟𝚒𝚐𝚊𝚝𝚒𝚘𝚗() API in Next.js 16.4. Sometimes you want to cache content for return visits without prefetching it before someone opens the page. Live demo, source code, and docs below ↓

Next.js 16.3 is now available! • Up to 90% less memory in dev • Faster builds, type checking, and rendering • Better tooling for AI agents • Custom error boundaries • Instant Navigations for SPA-like responsiveness nextjs.org/blog/next-16-3 Here's what's new ↓

Building SPA-like experiences with Next.js (3) With Partial Prefetching, you can tap a link and the page arrives with its content already there. Live demo, source code, and docs below ↓

Introducing eve, an agent framework. 𝚊𝚐𝚎𝚗𝚝/ 𝚊𝚐𝚎𝚗𝚝.𝚝𝚜 𝚒𝚗𝚜𝚝𝚛𝚞𝚌𝚝𝚒𝚘𝚗𝚜.𝚖𝚍 𝚝𝚘𝚘𝚕𝚜/ 𝚜𝚔𝚒𝚕𝚕𝚜/ 𝚜𝚊𝚗𝚍𝚋𝚘𝚡/ 𝚜𝚌𝚑𝚎𝚍𝚞𝚕𝚎𝚜/ Like Next.js, for agents. vercel.com/blog/introd...

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-1...

Next.js is used by millions of developers across every major cloud. Making it work well everywhere is on us. Here's what we've built with Netlify, Cloudflare, OpenNext, AWS, and Google Cloud, and the commitments we're making. nextjs.org/nextjs-acro...

We paid $1 million to hackers to harden our firewall defenses. Today we're telling the story of how we strengthened our WAF, disclosing a runtime mitigation layer for the first time, and how we partnered with @Hacker0x01 to defend against React2Shell. vercel.com/blog/our-mi...

⛩️ Waku v0.27.3 has been released. - Dependency updates addressing the critical React Server Components security vulnerability - Various small improvements All users should update immediately: github.com/wakujs/waku/...

A critical vulnerability in React Server Components (CVE-2025-55182) affects React 19 and frameworks, including Next.js (CVE-2025-66478). All users should upgrade to the latest patched version in their release line. nextjs.org/blog/CVE-20...

Our thanks to the @react.dev team for informing us so that we could provide mitigation for our users. bsky.app/profile/deno...

Thank you to the React and Next.js teams for involving us early and for the clear communication. We were able to patch our network ahead of disclosure to help keep our customers secure. bsky.app/profile/netl...

There is critical vulnerability in React Server Components disclosed as CVE-2025-55182 that impacts React 19 and frameworks that use it. A fix has been published in React versions 19.0.1, 19.1.2, and 19.2.1. We recommend upgrading immediately. react.dev/blog/2025/12...

very good talk by @samselikoff.com about App Router instant navigations and "use cache", clarified my mental model a lot

Next.js 16 • Cache Components • Turbopack enabled by default • Turbopack file system caching (beta) • Optimized navigations and prefetching • Improved caching APIs • Build Adapters API (alpha) • React 19.2 nextjs.org/blog/next-16

React 19.2 is now available! This release includes Activity, useEffectEvent, React Performance Tracks, partial pre-rendering, and more: react.dev/blog/2025/10...

i have some news. ✨ i’m occasionally available for React-adjacent consulting — architectural reviews, perf optimization, technical guidance. the format is hourly calls — a single call or possibly a series. email dan.abramov.consulting@gmail.com with what you need help on. i’ll reply if i can help.

Fluid: fast, cost-efficient compute. What you love about servers—combined with the best parts of serverless. vercel.fyi/fluid

Next.js's new features are powered by a hack. A beautiful hack. A truly magical one. I had to make a vid about it youtu.be/VMDydLUCLtE

it's done

big day tomorrow can't wait

what's your biggest frustration with the current next.js error overlays? working on some improvements with @huozhi.im & co 🖤

Holbox in LA. Michelin star. $5 Baja fish taco. Don’t make it make sense. Just eats tacos (and everything else)

react@19.0.0-rc1 is out today with a replacement for sibling pre-rendering. Give it a try and maybe we can ship React 19 soon? github.com/facebook/rea...

Vercel Ship, Day 4 🚀 https://vercel.com/ship

Introducing Vercel Storage ◆ Vercel Postgres: Serverless and Edge-ready SQL ◆ Vercel KV: Durable, global, serverless Redis ◆ Vercel Blob: Fast, simple file storage https://vercel.com/blog/vercel-storage

Vercel Ship is next week. Join us to hear about the latest product updates. https://vercel.com/ship

@styfle.bsky.social someone took pity on my I’m your replies and shared and invite!