Next.js 15 brings significant changes to the framework, including new async request APIs, improved caching strategies, and enhanced developer experience. Let's explore the key updates.

Async Request APIs

Headers, cookies, params, and searchParams are now async. This change aligns with the server-first architecture and enables better streaming performance.

Turbopack Stable

Turbopack is now stable for development, offering significantly faster hot module replacement and build times compared to webpack.