A little off topic, but still. It appears some testing confusion stems from the fact that people forget what version of Safe browser they have installed. I still think this could be helped by making sure the browser and other components are always consistently updated in the repositories.
Compare:
sascha@computer ~ $ emacs --version
GNU Emacs 24.5.1
vs.
sascha@computer ~ $ safe-browser --version
[AUTO-UPDATE] Error: Disabled. Only available on macOS and Windows.
(Browser starting)
Adding something like “About browser → Version” to the browser window itself would also help, I think.