 So things change, and even if you have a good version this week where you're running iOS 16 beta and you say, everything's fine, things could break in the next couple of weeks. If they've changed something and they try to optimize one feature here or there, it can affect how your apps work. So it really is sort of, if you're an early adopter and you want to test this stuff out before it's available, the developer beta is for app makers to make sure that their apps are compatible, but