# Juju

> Juju is an open source orchestration engine for deploying, integrating, and managing applications across Kubernetes, VMs, and bare metal using software operators called charms.


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## Pages in this subsection

- [Release notes](https://documentation.ubuntu.com/juju/2.9/releasenotes.md): > See also: How to upgrade your deployment
- [Juju 2.9 (LTS)](https://documentation.ubuntu.com/juju/2.9/releasenotes/juju_2.9.x.md): > April 2035: expected end of security and critical bug fix support
- [Unsupported Juju releases](https://documentation.ubuntu.com/juju/2.9/releasenotes/unsupported.md): Older releases of Juju that are out of support.
- [**Before Juju 2.9 (all EOL)**](https://documentation.ubuntu.com/juju/2.9/releasenotes/unsupported/juju_2.x.x.md): Juju 2.8 series is EOL

## Optional

- [Top-level llms.txt](https://documentation.ubuntu.com/juju/2.9/llms.txt): Complete documentation index.