Getting Started with Next.js 16

Why Next.js 16

Next.js has evolved a lot since the App Router became the default. In this post I'll walk through what's new and why it matters.

Key Changes

• Turbopack is now the default dev bundler
• Improved caching semantics
• Simpler params handling (now a Promise)

export default async function Page({ params }) {
 const { slug } = await params;
 return <div>{slug}</div>;
}

Tip: always await params in Next.js 15+.

Read the official docs for the full changelog.