Since GTK3 is default in ubuntu and we want to drop GTK2 from the CD by the next LTS update-notifier should be switched to GTK3
You can find migration instructions on http://developer.gnome.org/gtk3/3.1/gtk-migrating-2-to-3.html
Since GTK3 is default in ubuntu and we want to drop GTK2 from the CD by the next LTS update-notifier should be switched to GTK3
You can find migration instructions on http:// developer. gnome.org/ gtk3/3. 1/gtk-migrating -2-to-3. html