I have noticed this a long time ago. I even remember reporting it somewhere.
There’s something wrong with how updates are delivered. Sometimes I get a message that Rhino has update asking me if I want to install it. Sometimes even if I check for updates I have “last checked: Never”.
How can I make Rhino checking for updates (stable releases on its own) and suggesting to update after the SR has been released?
For sure checking “Auto-update” during install doesn’t do the trick.