In this question, I inquired as to why the Check for Updates menu item wasn't working. In this answer, Michael Pryor stated that FogBugz won't always inform you of an update if they (Fog Creek) feel the update isn't that significant.
I can see suppressing notifications of minor updates when FogBugz does its automatic update check, but if the user explicitly checks for an update with that menu item, I think they should be informed of any new version, no matter how trivial the changes may be.
