OpenBSD 4.9 released

OpenBSD 4.9 is here. To get the files for this release either order a CDROM or check out one of the FTP pages for a list of mirrors.

Generic network stack improvements:

• Reworking of the MCLGETI livelock algorithm to improve forwarding and host performance under high network load.
• Added support for socket splicing; sockets can be temporarily connected so that the kernel moves data without userland intervention. This will be used by relayd(8) in the next release.
• Added AES-GCM support for IPsec.
• Added automatic send and receive buffer scaling for TCP.
• Added wpakey option to ifconfig(8) replacing wpa-psk(8).
• TCP acknowledgments are no longer delayed on the loopback interface.
• Network livelock counters are now exported via sysctl(3).
• A radix tree sorting bug was fixed, which results in significant improvements to IPsec performance under certain conditions.
• tcpdump(8) now decodes Multicast DNS (mDNS) traffic.
• Wake on Lan support has been added to arp(8).
• Enabled MPLS and mpe(4) by default on GENERIC kernels.
• Added a mpls option to ifconfig(8) to enable MPLS on a per interface basis replacing the global sysctl knob.

OpenBGPD, OpenOSPFD and other routing daemon improvements:

• bgpd(8) handles various message encoding errors more gracefully now.
• Notification messages are now logged in bgpd(8).
• ospfd(8) will now correctly redistribute overlapping routes.
• ospfctl(8) now prints the LSDB checksum in the show summary output for quick verification that two LSDBs are in sync.
• Fixed ldpd(8)’s message parser to work on all architectures and more LDP messages are now implemented.
• Various improvements in ospf6d(8).