# Ubuntu release notes

> This is the documentation for the Ubuntu release notes, which describe the changes
> in current and upcoming Ubuntu releases.


2026

## Pages in this subsection

- [Ubuntu 15.04 release notes](https://documentation.ubuntu.com/release-notes/15.04/index.html.md): These release notes for **Ubuntu 15.04** (Vivid Vervet) provide an overview of the release and docum...

## Optional

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