Comment 64 for bug 988079

tbushnell: AFAIK, since Unity 6.0 is slated for release for Quantal, this bugfix will probably not make it into Precise, unless someone decides to backport Unity 6.0. You can, however, attempt to compile Unity 6.0 for yourself: http://askubuntu.com/questions/28470/how-do-i-build-unity-from-source

Source: https://answers.launchpad.net/unity/+question/203290