It, as with all Ubuntu releases, contains the latest version of both the Linux Kernel and GNOME, the desktop environment used on the default Ubuntu release.
There are a few differences between this version of Ubuntu and its predecessors, though. The first of which is probably the Instant Messaging client. It is not, like in previous releases, the much loved Pidgin. It is, instead, Empathy. This may be a good thing for some people, but for many, it is not. Although Pidgin cannot meet up to the many features that other messaging clients offer, it is still a very good one, and Empathy, I must say (in my opinion), is not. You may like it, if you don't however, go into the Terminal (Applications -> Accessories -> Terminal) and type the following:
sudo apt-get install pidgin
That command installs pidgin on your system for you. Enjoy.
Another new feature is that of the login screen. I cannot find a way to change the login screen as seen in the other versions. In this version, it's a simple dialog, and I cannot find a way to use new or existing login themes with it, even once it's unlocked. If you do know, let me know in the comments, share your info :)
Now, the next new feature is quite possibly something that Canonical (the people that make Ubuntu) put in to compete with Windows 7 and OS X Snow Leopard, who, if you remember, were all launched recently. This feature is not really a feature, but more an improvement. It is wallpapers. As you may or may not know, Windows 7 came with LOADS of wallpapers that were all really good and artistic. Snow Leopard may have had a similar improvement. Ubuntu isn't one to go with the trends, but it's still gone and done it. There's about a dozen (possibly more) pre-included wallpapers which makes a change from the less-than-4 that have been seen in other versions.
There's a ton of other features which I'll hopefully be looking at in a video soon. I'll be taking some screenshots of 9.04 (which I'm still using) and then comparing them with 9.10 which I'll hopefully upgrade to this afternoon.
To upgrade your Ubuntu version, go to System -> Administration -> Update Manager. At the top you should see a bar similar to the one you see below...
Just click update and then it'll connect to the update server, download the iso (could be some time as the servers are completely full with the amount of people getting on and downloading) and then it will install on your computer. It'll then install this new update, keeping all your applications and documents etc. However, it is a good idea to backup just in case.
If you haven't got Ubuntu currently installed, use the usual instalation method which is detailed on the website
If you're downloading, remember to use Bittorrent as this keeps the loads off the Ubuntu servers for those upgrading.
That's some of Ubuntu Karmic's new features.
In Other news: The poll is still open for the logo competition. See the previous post for details and use the poll at the top of the blog.
For now,
Yours,
Ratscallion