title: Adaptive Layout in Xcode 8
body: <p>I am developing app using Xcode 8 (beta 1). Unfortunately, I am not able to find "Size Classes" option. </p>
  
  <p>In Xcode 7, there was option "Use Size Classes".</p>
  
  <p><a href="https://i.stack.imgur.com/9ehEy.png" rel="noreferrer"><img src="https://i.stack.imgur.com/9ehEy.png" alt="enter image description here"></a></p>
  
  <p>But in Xcode 8 there is no such option. Is there any help for using Size Classes or similar in Xcode 8?</p>