SRU documentation

Once an Ubuntu release has been completed and published, updates for it are only released under certain circumstances, and must follow a special procedure called a “stable release update” or SRU.

This documentation describes the principles and processes we follow in order to keep stable Ubuntu releases stable.

Our documented principles are intended to be read by all Ubuntu users if they wish to understand what to expect from Ubuntu stable releases, and are for upstream and Ubuntu developers to read if they wish to understand what changes would or would not be acceptable to us. The rest is intended for Ubuntu developers and SRU team members to achieve this in practice.

Did you notice a regression in a package which went to -updates? Please report this using these steps.

In this documentation

How-to guides

Step-by-step guides covering key operations and common tasks

Reference

Technical information - specifications, APIs, architecture

Explanation

Discussion and clarification of key topics

Project and community