When I say officially in the topic, I don’t mean to say that it hasn’t been available earlier for those who like to interact with the whole Ubuntu community, similar to when people, such as me, were downloading new Firefox versions a day or two before any public statement was made.
This new version comes with Gnome 2.2.0, and you can read more about that here, but at it’s core, Ubuntu brings a new and very Spotlight-like search system which displays search results very quickly, the ability to instantly switch between users and better plugin/extension support for Firefox.
On the more technical side, the new Ubuntu now allows you to write to NTFS formated disks or partitions, which means that you no longer have to make an extra Fat32 partition to exchange files between the two systems, a graphical configuration tool for X, which allows you to change the screen resolution and refresh rate without having to go through the dos-like interface, and better security, less power consumption, etc etc.
You can read the whole list of changes here. As for me, I’ll be busy throughout most of the day tomorrow installing this new version since most of the things it includes eliminate the reasons that made me uninstall it.