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I saw the video at WWDC19. And I found some confused sentence."Make sure your application properly lays out to support any size, whether it is the smallest iPhone to the largest iPad."Does this mean my iPhone app should support iPad? I mean, my app is an iPhone app, not iPad or Universal App. Should I change iPhone app to Universal app until April 2020?I couldn't find any other information about it. I wanna make sure what I have to do.Here is Video's URLhttps://developer.apple.com/videos/play/wwdc2019/224/?time=214