Two security updates were released under -Current and also in -Stable back to Slackware 12.0. Pidgin 2.7.10 has been released some times ago, but it's now part of Slackware-Current and also ported back to previous version of Slackware.
Other interesting upgrade is glib and gtk+ which are now upgraded to 2.28 and 2.24 respectively. This will bring new excitement to other applications that requires newer gtk and glib packages in order to compile.
Several other packages gets rebuilt and upgraded but with less exciting changes, such as tin, mhash, wpa_supplicant, xterm, pan, and xfce. Still, it's worted to see this changes since it's making the next Slackware release becomes more stable and solid out of the box