electrostaticcarrot writes "DragonFly — that fourth major BSD — has had its 2.4 release. The 'most invasive change' is the addition and usage of a DevFS for /dev; building on this, drives are now also recognized by serial number (along with /etc/devtab for aliases) as listed in /dev/serno. This is also the first release with a x86-64 ISO, stable but with limited pkgsrc support. Other larger changes include a ported and feature-extended (with full hotplug and port multiplier support) AHCI driver (and SILI driver based on it) originally taken from OpenBSD, major NFS changes, and HAMMER updates. A pkgsrc GIT mirror has also been set up and put in use to make future pkgsrc updates quicker and smoother. Here are two of the mirrors."