This is a feature suggestion.
For 2.1.41 I had some bug reports that my add-ons don’t work after updating Anki to .41 or .42. These problems occurred because these users were still running old versions of my add-ons and these disappeared after they checked for add-on updates or reinstalled them.
I think this problem would be fixed if the first run after anki updated triggered an add-on update check.
There’s a related problem: One or two reports said that an error occured even though they only had one add-on of mine running. They actually disabled all other add-on in the add-on dialog but didn’t restart so that still code from other add-ons was loaded. Maybe there could be a tooltip when you disable or uninstall an add-on that a restart is suggested?