v0 Introduces Native User Authentication via Vercel Auth

Vercel has launched 'Vercel Auth' directly within v0, allowing builders to add secure sign-in, social login, and session management to their generated apps with a single prompt. The system is built on top of Auth.js and requires no external provider setup for basic use cases.

Why it matters: Authentication is the biggest hurdle for new apps; having it built-in means builders can launch secure, user-facing products in minutes.