Canonical published yesterday, July 26th, the third and last Alpha release of the upcoming Lubuntu 12.10 (Quantal Quetzal) operating system.
Lubuntu 12.10 Alpha 3 comes with a new version of the session manager, a new version of PCManFM, xfce4-notifyd replaced notification-daemon for default notification system, added Catfish searching utility, and updated the artwork (including the wallpaper and GTK themes).
Lubuntu 12.10 Alpha 3 is distributed only as Live CDs (Desktop and Alternate), for the i386, AMD64 and PowerPC architectures.
Download Lubuntu 12.10 Alpha 3 right now from Softpedia. Remember that this is an alpha release and it should NOT be installed on production machines. It is intended to be used for testing purposes only.