I have noticed that after upgrading to Ubuntu GNOME 16.04 with GNOME 3.20 that I am unable to pin gnome-terminal to Docky. There simply is no option even though it was pinned there before when I was running the previous GNOME version. It also pins perfectly well to the built-in GNOME dock in the Activities Overview, though I have not tried with any other docking application. I am running Docky version 2.2.1.1-1.
I have noticed that after upgrading to Ubuntu GNOME 16.04 with GNOME 3.20 that I am unable to pin gnome-terminal to Docky. There simply is no option even though it was pinned there before when I was running the previous GNOME version. It also pins perfectly well to the built-in GNOME dock in the Activities Overview, though I have not tried with any other docking application. I am running Docky version 2.2.1.1-1.