CentOS 6.3 for i386 and x86_64 architectures has been released.
Announcement: http://lists.centos.org/pipermail/centos-announce/2012-July/018706.htmlRelease notes: http://wiki.centos.org/Manuals/ReleaseNotes/CentOS6.3
Release notes: http://wiki.centos.org/Manuals/ReleaseNotes/CentOS6.3