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appDir

This is a legacy API and no longer recommended. It's still supported for backward compatibility.

Last updated June 16, 2025

Good to know: This option is no longer needed as of Next.js 13.4. The App Router is now stable.

The App Router (app directory) enables support for layouts, Server Components, streaming, and colocated data fetching.

Using the app directory will automatically enable React Strict Mode. Learn how to incrementally adopt app.