It’s been three years since the promising Ubuntu GNOME distribution was started, which later become an official Ubuntu flavor due to the demand from the community to use a pure GNOME desktop environment on top of a solid Ubuntu Linux base, which was not technically possible because of dependency conflicts with the Unity interface.
Unfortunately, we would have loved this distro more if it could ship with the latest version of the GNOME desktop environment in time, but being able to upgrade at a later time is also a good thing. Therefore, Ubuntu GNOME 16.04 LTS launches today with the GNOME 3.18 desktop environment.