Slackware 12.1 has been released, with kernel 2.6.24-5. 'Among the many program updates and distribution enhancements, you'll find better support for RAID, LVM, and cryptsetup; a network capable (FTP and HTTP, not only NFS) installer; and two of the most advanced desktop environments available today: Xfce 4.4.2, a fast, lightweight, and visually appealing desktop environment, and KDE 3.5.9, the latest 3.x version of the full-featured K Desktop Environment.
http://www.slackware.org/announce/12.1.php