osx - Xcode-beta and updated/new frameworks -


i run xcode-beta 7 on 10.10.3. has new gameplaykit framework , updated scenekit framework. can use them (or new features) in current project, or must have 10.11 beta?

you can write code on os x 10.10.3 using xcode 7β. can compile , export app since xcode can build against included 10.11 sdks.

you can not, however, run app on mac under 10.10.3. app run need update 10.11β.

make sure

  1. always use the same beta version xcode , os x
  2. always use latest beta

if try run app links against sdk not available app crash before started error similar to

dyld: library not loaded: /system/library/frameworks/metal.framework/versions/a/metal

that because app configured tell dyld search in system's frameworks directory framework , directory not contain framework on version of os x.

for unknown symbols in existing (updated) frameworks there 2 options depending on language:

swift: swift 2.0 compiler automatically warns api want use not available , makes guard statement so:

if #available(osx 10.11, *) {     let namecomponents = nspersonnamecomponents() } else {     // fallback on earlier versions }

objc: use this answer.


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