Release notes for OpenBSD 5.0 are on OpenBSD.org along with download links. Among the changes in OpenBSD 5.0 worth noting (for one reason or another) are:
- Support for MSI interrupts on many devices.
- Big-memory support is now enabled on as many architectures as possible.
- Support for sending Wake-On-LAN packets along with other WOL improvements through the networking stack.
- Various SCSI improvements.
- Malloc is a lot faster and has few less security issues.
- OpenSSH 5.9 integration.
- Over 7200 ports.
- Package highlights: GNOME 2.32.2, KDE 3.5.10, Xfce 4.8.0, LibreOffice 3.4, Chromium 12.