I successfully updated my ubuntu MATE 15.10 PowerPC to 16.04 LTS Xenial Xerus today. :-) I want to do some beta testing.
I created update instructions for the AmigaONE X1000 today. Link: http://forum.hyperion-entertainment.biz/viewtopic.php?f=35&t=3228&sid=3a1b6f19de6deb910336a6ff113f6f92
Unfortunately Compiz doesn't work anymore. The window decoration doesn't display. It needs the package "compiz-gnome" to display the window decoration. I tried to install it but it has an unmet dependency (libmetacity-private3 (>= 3.17.1)). Fortunately Xorg, sound/audio, network, and 3D acceleration are working. :-)
Photo
Shared publicly