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
https://t.co/lNAQqpAKT1
Here's what's new ↓
The Partial Prefetching optimizer Skill turns a navigation goal into an 𝚒𝚗𝚜𝚝𝚊𝚗𝚝() test, then refactors the app until it passes.
Try it in your app:
npx skills add vercel/next.js --skill next-partial-prefetching-optimizer
https://t.co/cczvj4D8fY
We used a coding agent with Next.js 16.4's new prefetching controls and Skill to improve v0's navigation experience at no added cost.
The loop:
• Capture navigation with 𝚒𝚗𝚜𝚝𝚊𝚗𝚝()
• Define the target UI in the test
• Refactor until it passes
https://t.co/xdZ1jrAehM
The Next.js site has a new look!
We've redesigned the homepage, /docs, /blog, and more, with a consistent design that keeps the focus on the content.
https://t.co/S5DGXywqm5
A few highlights ↓
The Next.js Blog has a redesigned index for browsing posts and updated article layouts that make longer reads more comfortable.
https://t.co/nyuY2oUpzr
You can also follow security advisories through GitHub or a dependency monitoring service.
On the Next.js repository, choose Watch → Custom → Security alerts.
https://t.co/SPPDEw3lcZ
An out-of-band Next.js security update is planned for Wednesday, October 14.
It will address three vulnerabilities in upstream dependencies, including two critical and one high-severity issue.
https://t.co/aKsv1rkT8T
We're also changing how we share future security notices ↓
We'll continue making Next.js more secure and publish notices on our security blog:
https://t.co/EMRcrjcNLS
Routine updates won't be posted on social media unless there's something specific to call out. To follow future updates, subscribe via RSS:
https://t.co/B2tjyonxC0
Next.js 16.4 also includes React 19.3, with stable View Transitions and Fragment Refs, the new 𝚋𝚛𝚘𝚠𝚜𝚎𝚛() API, and Trusted Types support.
https://t.co/DRHGNYAOdb
Next.js 16.4
• Cache Components by default in new apps
• Static output guarantees and more control over prefetching
• Agent-guided upgrades and feedback
• 20–25% smaller Turbopack disk cache
• Faster development and smaller bundles
https://t.co/3SE5yL6Mj7
Turbopack Bundle Analyzer now surfaces large client routes, snapshot diffs, and critical render-path modules.
Use the 𝚗𝚎𝚡𝚝-𝚋𝚞𝚗𝚍𝚕𝚎-𝚘𝚙𝚝𝚒𝚖𝚒𝚣𝚎𝚛 skill with your coding agent to reduce what reaches the browser.
https://t.co/k3qPOmK5YH
The September Next.js security release is now available.
It addresses seven vulnerabilities, including one high-severity issue. Upgrade now:
▲ ~/ npm install [email protected]
▲ ~/ npm install [email protected]
https://t.co/fJOqERE854
We work with researchers through Vercel’s Open Source Bug Bounty to secure Next.js and other open source frameworks.
To participate:
https://t.co/5HyckWjvGN