The widget is very convenient but has a few peculiarities at the moment:
(1) it doesn't reset the "updates available for x qubes" in the tooltip;
(2) it doesn't automatically select the templates needing upgrading, and
(3) some things that fail get a green check mark, so I always have to
look at the 'details' pane.
I haven't seen (3) in the last several days, so it may be fixed, but
iirc it was Fedora templates that couldn't find one or more of their
repos.
Sure is nicer than doing it manually though!
Cheers
BillW