There is a lot of time so I upgraded my Ubuntu to 10.10 even though it didn’t come to last release.
The biggest change is now it has a new theme: Ambiance-maverick-beta. Looks nice. Some called it “Light theme”.
And the nvidia driver looks not work with new kernel. You have edit /etc/X11/x.conf to change “nvidia” to “nv”, then you can login into X window, otherwise you will get a “no screen found” or “can’t load module nvidia” exception.
Freetype has been upgraded to version 2.4. This version turn on “Turetype bytecode” by default since this patent has expired. But I didn’t find big changes at font rendering of this version.