Vrijdag is versie 5.5 van CentOS beschikbaar gekomen. Dit opensource besturingssysteem is gebaseerd op Red Hat Enterprise Linux en profileert zich voor gebruik in enterprise omgevingen. CentOS staat dan ook voor Community ENTerprise Operating System. In tegenstelling tot RHEL is CentOS wel gratis te gebruiken. De volledige release notes voor versie 5.5 zijn op deze pagina te vinden, dit is de introductie daaruit:
Introduction
Welcome to the CentOS 5.5 release. CentOS is an Enterprise-class Linux Distribution derived from sources freely provided to the public by our Upstream OS Provider (UOP).
CentOS conforms fully with the upstream vendors redistribution policy and aims to be 100% binary compatible. (CentOS mainly changes packages to remove upstream vendor branding and artwork.) CentOS is a Free Operating System.
CentOS 5.5 is the fifth update to the CentOS 5 distribution series. It contains a lot of bugfixes, updates and new functionality. Before reading any further we advise you to read the UOP Release Notes (or Single Page Release Notes) and Technical Notes (or Single Page Technical Notes). The rest of this document is an addendum and primarily covers CentOS-specific issues.