An upgrade shouldn’t be a downgrade. But too often it is. It breaks expectations and ruins trust. Soon, users learn, and in response turn off all upgrades by de

An upgrade shouldn’t be a downgrade. But too often it is. It breaks expectations and ruins trust. Soon, users learn, and in response turn off all upgrades by default. Success? If an upgrade breaks things then it should be made exceedingly explicit (not only in text, but in a dialog button) that you accept that your existing stuff will break, and you should be provided with measures and (at least description of) steps to overcome it.