Red Hat finally announced the release of Red Hat Enterprise Linux (RHEL) 6 yesterday. RHEL 5 was released in early 2007, making the wait for RHEL 6 the longest since Red Hat rebranded their Linux-based operating system with the RHEL moniker in 2003.
RHEL 6 boasts tons of new features including XFS and EXT4 file systems, a myriad of aging software packages replaced with actively developed counterparts, and the Completely Fair Scheduler (CFS). Fans of virtualization will be interested to know that Xen has been replaced by KVM as the hypervisor of choice.
If you've had a chance to use RHEL 6, I'd appreciate your input in the comment section.