2010/12/26 R P Herrold herrold@centos.org:
My last post here noted that Red Hat ran a four month beta program, AFTER their internal stabilization. My blog post crossing 'planet.centos.org' made it clear that the CentOS team simply are not much driven to respond to 'popular demand' or press pressure, and more motivated to produce a durable product. Before that my post here noted that it was unlikely that few oterh than hard core developers who enjoyed pain would ever be able to do a yum transition from 5 to 6, as 6 is rather radically different 'under the hood' as to SELinux model
Mind you, CentOS is not building a new OS from scratch. It's a rebuild, so it's reasonable to assume that most of the painful work has already been done.
That said, the subtle and unpredictable pains of SELinux and the trade-offs of simply disabling it and spending your security time on more gaping vulnerabilities, such as Subversion clients storing passwords in clear-text and SSH keys without passphrases, has been the subject of a lot of other threads.