On the surface, based on the second beta just released, Ubuntu 13.10 is shaping up to be a solid, if slightly dull, Linux distro.
There have been no major visual changes to the desktop and only a couple of expanded features for the Unity Dash, which means 13.10 – due 17 October - won't look all that different from the last release of Ubuntu when it arrives.
Ubuntu 13.10 is, however, something of an iceberg - the bulk of what's new is hidden away under the surface. Ubuntu 13.10 marks the arrival of Mir, Canonical's new graphics stack designed to replace the ageing X Server.
rest here