out of scope

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Auth.js maintenance transition to Better Auth

Auth.js, formerly known as NextAuth.js, is now being maintained and overseen by the Better Auth team as of September 22, 2025. Better Auth was inspired by Auth.js and shares aligned goals around enabling developers to own their authentication.

Auth.js existing users support and migration guidance

Existing Auth.js/NextAuth.js users can continue using the project without disruption as security patches and urgent issues will continue to be addressed. However, new projects are strongly recommended to start with Better Auth unless there are specific feature gaps. A migration guide is available for teams considering migration to Better Auth.

Better Auth framework-agnostic design origin

Better Auth was designed to be framework-agnostic because the founder encountered problems adding auth to projects using different frameworks. Adding OAuth with NextAuth felt nearly impossible for Expo apps, and there was no equivalent for Svelte, making migrations painful.

Better Auth initial release date

Better Auth's first release was published on September 28, 2024. The founder teased the release on X with a post dated that showed September 28 as the planned launch date.

Better Auth beta period and release cycle

Better Auth stayed in beta for the first three months after its September 28, 2024 release. Every Friday through the end of November 2024, new releases were shipped packed with fixes, improvements, and new features, until version 1.0 was reached.

Better Auth acquired Auth.js and NextAuth.js

Better Auth acquired and took over the Auth.js / NextAuth.js project. The team saw an opportunity for Better Auth to continue maintaining Auth.js, fix security issues and bugs, and figure out a long-term path to transition people from NextAuth.js to Better Auth.

Better Auth joining Vercel announcement

Better Auth is joining Vercel as of 2026-07-07. The team is moving to Vercel to accelerate work on open-source auth and securing agent workflows. Vercel shares Better Auth's commitment to keeping auth open source, framework and platform agnostic.

Agent Auth Protocol development

Better Auth launched the Agent Auth protocol to research how auth should work in a world where agents act on behalf of users. This addresses security and authorization challenges specific to agentic workflows and securing agentic systems.

Better Auth founding motivation - organizations and multi-tenancy

Better Auth was created because the founder needed organizations (multi-tenant) support—inviting teammates, roles, permissions, proper access control—when building an open-source web analytics platform. Existing solutions like NextAuth did not provide this capability without significant custom work.

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