==============================================
Ubuntu Certification Regression Tests
==============================================

Introduction
============

Once an Ubuntu release has been completed and published, updates for the system
are only released under certain circumstances and must follow a special
procedure called a **Stable Release Update** (SRU).

The Ubuntu Certification team performs regression testing on certified hardware
on a regular cadence to ensure and improve the quality of Ubuntu SRU kernels and
point releases. Any regressions discovered do not affect existing
certifications.

The regression tests are performed on the following Ubuntu releases:

- Ubuntu Server
- Ubuntu Desktop
- Ubuntu Core
- Real-time Ubuntu


Coverage Guide
==============

The documents in this section provide information about the regression tests
performed for validating a Stable Release Update on Ubuntu Certified systems. 

.. toctree::
   :maxdepth: 1
   
   SRU Coverage Guide for Ubuntu Server <Coverage_Guide_SRU_Server>
   SRU Coverage Guide for Ubuntu Desktop <Coverage_Guide_SRU_Desktop>
   SRU Coverage Guide for Ubuntu Core <Coverage_Guide_SRU_Core> 
   SRU Coverage Guide for Real-Time Ubuntu <Coverage_Guide_SRU_RT>