React

React Router 8.5.0, dated October 19, 2026, deprecates its view transition APIs for React's ViewTransition and adds unstable API-only Mode, custom fetch and route discovery.

React 19.3, released September 9, stabilizes the ViewTransition component and Fragment Refs and adds a browser() API for opting components out of server rendering.

The React team merged a work-in-progress Rust rewrite of the React Compiler, and Vercel says early Turbopack tests found 20-50% faster compilation.

Next.js 15.5.18 and 16.2.6 land with a 13-advisory bundle covering a React Server Components DoS (CVE-2026-23870), middleware-bypass routes, SSRF, and cache poisoning; Vercel says the WAF cannot reliably block them.

Remix released the Remix 3 beta preview on April 30, the first hands-on cut of a full-stack rebuild that drops React in favor of a Preact fork and brings routing, auth, forms, data, and UI under one package.

Vercel's Next.js 16.2 delivers an 87 percent reduction in dev server startup time, up to 60 percent faster rendering via a React contribution, and introduces experimental tooling that gives AI coding agents direct access to browser DevTools and component trees from the terminal.

Vercel releases Next.js 16.2 with experimental AI agent tooling, a React contribution that speeds up Server Component rendering by up to 350 percent, Turbopack Server Fast Refresh, and over 200 bug fixes.