[ubuntu] Will Gnome 3 automatically move over if I upgrade Ubuntu [from 12.10 to 13.04]?

I am ready to upgrade from Ubuntu 12.10 to 13.04, but I am reluctant due to that I don't know weather Gnome 3 will still work automatically on 13.04.
So, the question is...will Gnome 3 still work as usual after the upgrade?