/admin/upgrade page has a title tag “Docker Manager”.
Being not that into the technical details, I do think that “Upgrade” would be a better title.
After all, that is what the H1 on that page, says, too.
Optionally, it would be even better IMO to also append the forum name, just like e.g. on the administration pages, too. Like e.g. “Upgrade – My great forum”.