The FreeBSD Release Engineering team is pleased to announce the availability of FreeBSD 8.3-RELEASE. This is the fourth release from the 8-STABLE branch which improves on the functionality of FreeBSD 8.2 and introduces some new features. Some of the highlights: usb(4) now supports the USB packet filter; TCP/IP stack now supports the mod_cc(9) pluggable congestion control framework; graid(8) GEOM class added to support various BIOS-based software RAID controllers (replacement for ataraid(4)); ZFS subsystem updated to SPA version 28; GNOME version 2.32.1, KDE version 4.7.4. FreeBSD 8.3-RELEASE is now available for the amd64, i386, pc98, and sparc64 architectures.