Next.js 15.5 is here with game-changing updates!

Here's what devs need to know:

1. Turbopack in Beta: Production builds via next build --turbopack – already handling 1.2B+ requests on http://nextjs.org. Projects seeing 2-5x faster builds, slashing deployment times!
2. Stable Node.js Middleware: No more Edge limits – full access to fs, crypto, and npm packages. Perfect for complex logic like secure token gen. Set runtime: 'nodejs' and level up your server-side game.
3. Linting Shift: next lint deprecated (gone in v16). Time to switch to ESLint or Biome manually. Start migrating now to avoid headaches.
4. TypeScript Boosts: Typed routes, route export validation, and global PageProps/LayoutProps. Enable typedRoutes: true for compile-time checks, plus new next typegen for CI validation.

Deprecations Ahead: Warnings for legacyBehavior, AMP, Image quality configs, and more – clean up before Next.js 16 drops.

These updates make Next.js even more powerful for real-world apps. For the full breakdown and migration tips, head over to :

To dive deeper!

Next.js 15.5