title: Xcode 8 Storyboard - Updating existing storyboards. App republish required?
body: <p>I just updated to <code>Xcode 8</code>. On selecting any of the devices at bottom, constraints are to be reset. Since the view is now not accommodating on the screens. Earlier to this, I was using <strong>wAny hAny</strong> window and also supplied the constraints. These constrains are even there now but need to be changed.<br>
  I am assuming the only way I see is to update the frames and constraints for all devices (wondering it is a boon or curse). But since a single constraint will be same for all devices, how will it's value be retained considering it has to be used in code.<br>
  How to update the existing storyboards to fit <code>Xcode 8</code> ?<br>
  Having said this, storyboard needs to be restructured which means app needs to be published again as the current build would give layout issues on <code>iOS 10</code>.<br>
  Is my reason valid enough ?</p>