FreeBSD 6.1-RELEASE

http://www.freebsd.org/releases/6.1R/announce.html

~ Addition of a keyboard multiplexer.  This allows USB and PS/2 keyboards
  to coexist without any special options at boot.
~ Many fixes for filesystem stability.  High load stress tests are now run
  successfully on a regular basis as part of the normal FreeBSD QA process.
~ Automatic configuration for man Bluetooth devices, as well as automatic
  support for running WiFi access points.
~ Addition of drivers for new ethernet and SAS and SATA RAID controllers.
~ BIND updated to 9.3.2
~ sendmail updated to 8.13.6