ios - Adaptive Layout in Xcode 8 -

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i developing app using xcode 8 (beta 1). unfortunately, not able find "size classes" option.

in xcode 7, there option "use size classes".

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but in xcode 8 there no such option. there using size classes or similar in xcode 8?

now have "use trait variations" improved version of size classes

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can select device based , orientation based trait view size classes (ipad pro, ipad, iphone 6splus, iphone 6s, iphone se , iphone 4s)

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