One example is the new photos permission API. If you don't rebuild for iOS 14, your app will continue to work... but your users get a horrendous experience wher

One example is the new photos permission API. If you don't rebuild for iOS 14, your app will continue to work... but your users get a horrendous experience where they're presented with a confusing permissions popup every time they launch your app. I'm sure there are other examples as well.