When was UIStackView introduced?
Asked on 07/31/2024
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UIStackView was introduced in iOS 9, which was announced at WWDC 2015. This information is not directly available in the provided context, but it is a well-known fact about the history of UIKit.
For more recent updates and enhancements to UIKit, you can refer to the session What’s new in UIKit from WWDC 2024.

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