I've been bitten a few times recently when the App Update comes in and it says, "Improvements and bug fixes" and the update actually is a regression or removal of functionality that was in the previous build. Case in point: Hulu removed their picture-in-picture support on the iOS version of the app, but the notes made no mention of that. I think that type of change is something that people should be made aware of, especially if they're paying for a service.