Folks doing any sort of serious NFS serving on 2.2 Linux boxes should get this version of the server. See the announcement for details. Pset 0.60 by Tim Hockin. This patch allows the binding of processes to specific processors on SMP systems. PPSkit 0.6.0 from Ulrich Windl - nanosecond time resolution and better NTP support.
Capabilities continue to generate a lot of discussion.
It does seem to have evolved, however, into a more general difference of opinion on how security in Linux systems should work. In the absence of a root user, capability schemes which depend on setuid root files will not work. A capability-based system will be a very different world, so the fact that a lot of programs will break under this model is just part of the pain that has to be endured to get there. The other camp sees capabilities as a way of increasing security by reducing the privileges of server programs and the like. They see no need to abolish the root account, and no need to adopt schemes that break more of the system than is absolutely necessary.