CentOS-5.5 Release Notes (Online | single page | PDF) Technical Notes (Online | PDF) CentOS-5.4 Release Notes (Online |single page | PDF) Technical Notes (Online | PDF) CentOS-5.3 Release Notes (Online | PDF) Release Manifest (Online | PDF) CentOS-5.2 Package Manifest (Online | PDF) Deployment Guide (Online | PDF) Installation Guide (Online | PDF) Virtualization Guide (Online | PDF) Cluster Suite