Originally Posted by ssam
The part you don't seem to be grasping here is that Gnome 2 is no longer supported. It would have made absolutely zero sense for the Gnome devs to go to the trouble of renaming half of Gnome 2 so that it could be installed alongside 3, when they had no intention of further developing or supporting that codebase. Did they rename things at the final release of Gnome v1 so that users could keep on running unsupported code next to Gnome v2? No, and it's not reasonable to expect that they should have done it at v3.