OpenBSD

Improved hardware support. pf(4) improvements.
Generic network stack improvements. OpenBGPD, OpenOSPFD, and other routing daemon improvements.
A new installer that can be largely "entered through". OpenSSH 5.3. Over 5,800 ports, and minor robustness improvements in package tools. There are many other changes.

This release adds hardware support, including a generic sensors framework and blob-free Nvidia support, a new FTP proxy, an improved host access daemon, major improvements to bgpd and ospfd, and OpenSSH 4.3.

This release adds hardware support, a RAID management interface, a wireless host access daemon, major improvements to bgpd and ospfd, large improvements in NFS write performance, guard pages (which help in detecting heap based buffer overflows and prevent various types of attacks), and OpenSSH 4.2. malloc(3) now uses mmap(2), introducing unpredictable allocation addresses.

A new platform is supported: OpenBSD/luna88k. SMP
support was added on OpenBSD/i386 and
OpenBSD/amd64. A new NTP daemon, hotplug, and USB
2.0 support were added. BGP and NFS performance
and reliability were improved. New packages
include OpenSSH 3.9, OpenSSL 0.9.7d, XFree86
4.4.0, GCC 2.95.3 and 3.3.2, Perl 5.8.5, Apache
1.3.29, Sendmail 8.13.0, BIND 9.2.3, Lynx
2.8.5rel.2 with HTTPS and IPv6 support, ncurses
5.2, the latest KAME IPv6, Binutils 2.14, and GDB
6.1.