RHEL 6 - your sensible but lovable friend
The first major update for Red Hat Enterprise Linux in more than three years hit last month, and judging by the traffic that took down Red Hat's download servers, it's long over due.
RHEL 5 came out in March 2007 with the Linux 2.6.18 kernel and while incremental updates have added kernel updates and new features, it's showing its age.
Of course, the whole point of running an enterprise distro like RHEL is that it isn't Ubuntu or Fedora, and it doesn't completely change all the rules every six months.
Still, there's a balance to be had, and even by enterprise standards RHEL 6 is a long time coming. But the RHEL 6 beta is here and the good news is that there's plenty to love.
For RHEL 6, Red Hat is using a Fedora development release based on the Linux 2.6.32 kernel - technically, it's a hybrid of several recent kernels. Red Hat engineers have hardened the Fedora base and added quite a few features - with a strong emphasis on virtualization.