hi , If you update shell extensions, the old version continues to work.
I installed the latest version of the dash to dock plugin from the antergos repository. The features that came with v60 did not work.
And then reinstalled from https://extensions.gnome.org. The same result.
Release notes (v60)
New feature: implement windows thumbnails popup menu [franglais125: c7108993, 9a4e2f5d, 31fb0597, 3c9f7f3b].
Not work for me