---
title: Reference
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ps7.staging.ubuntu.com/ceph/docs/reference
---

*Submit*

# Reference

The reference guides in this section provide technical information you may need to reference when using Ceph. It also provides additional information about using Ceph; release information for Charmed Ceph, OpenStack charms and upstream Ceph; supported versions of Ceph, OpenStack and Ubuntu LTS releases.

* [Supported versions](https://ps7.staging.ubuntu.com/ceph/docs/supported-ceph-versions)
* [Release cycle](https://discourse.ubuntu.com/t/18800)
* [Release notes](https://ps7.staging.ubuntu.com/ceph/docs/release-notes)
* [Appendices](https://ps7.staging.ubuntu.com/ceph/docs/appendices)

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Supported Ceph versions](https://ps7.staging.ubuntu.com/ceph/docs/supported-ceph-versions)

This page was last modified 11 months ago. [Help improve this document in the forum](https://discourse.ubuntu.com/t/reference/47708).