# JAAS

> JAAS is an enterprise layer on top of Juju that provides centralized controller management, OIDC authentication, and ReBAC authorization.


2026 CC-BY-SA, Canonical Group Ltd

## Pages in this subsection

- [JAAS](https://documentation.ubuntu.com/jaas/latest/reference/jaas.md): JAAS reference documentation including supported Juju versions for deployment, CLI usage, and controller compatibility requirements.
- [Supported Juju versions](https://documentation.ubuntu.com/jaas/latest/reference/jaas/jaas-supported-juju-versions.md): Learn JAAS supported Juju versions for deployment, CLI usage, and controller compatibility with minimum version requirements and LTS support.

## Optional

- [Top-level llms.txt](https://documentation.ubuntu.com/jaas/latest/llms.txt): Complete documentation index.