I love how Photo Mechanic is always improving, and hope the new subscription model will keep an emphasis on updates.
I hate how I sit down after a long day of shooting, am on a deadline, and Photo Mechanic asks me if I want to take a few minute break to update it right then. It is never a good time to update if I am opening up Photo Mechanic. So I click "no" and get to work, and am faced with the same question tomorrow. It doesn't even show me the changelog so I can decide if there is some pressing reason to do it now or later.
It is just the nature of the work, that I can update it any other time, except for right when I open up Photo Mechanic. It would be far more convenient if it updated on closing, or updated silently in the background.