The upcoming Ubuntu 12.10 with codename Quantal Quetzal has just released Alpha 3 by ubuntu developer and available for download. This Alpha release is not recommended to be installed on production systems. A production machine is a machine that you use to do work on and can’t afford to have it corrupted by unstable programs.
Ubuntu 12.10 Alpha 3 comes with Firefox 15 Beta,Kernel 3.5, Xorg 1.12, LibreOffice 3.6 RC1, Gnome Shell 3.5.4 (including revamped ‘Nautilus’ with UI changes, which still looks a bit ugly due to Ubuntu’s theme incompatibilities),Unity 6.0 and more.
Download Ubuntu 12.10 Alpha 3
If you want test out this release, you can download Ubuntu 12.10 Alpha 3 ISO image here: