Normally, OpenBSD is released every May 1 and November 1. The team was really trying to push 4.6 out the door by October 1, but problems with the CDs held it back. Still, they managed to ship the CDs early, and decided to release OpenBSD 4.6 today. I've been offline almost all day, so I just now saw it.
As always, the new release brings more hardware support and improved functionality. Check out the release notes for details. Order your 3-CD set, or hit the mirrors to download installation media images.
Posted by Ax0n