Fun stuff. Should be easy to install. I'm looking into making a Debian package out of it, or piman's going to help me when he has some free time. Maybe ahze can make a FreeBSD port. Fun fun.
Also available are new images and a diff from 20010429.
If you're running a test server, you should upgrade -- it'll be painless. If you're trying to run LJ on an intranet, you should definitely upgrade. That's what this release was all about. It should now be possible to install it on a company intranet (or anywhere) very easily.