我的Mac OS X应用可以在10.10或以后使用故事板吗，但不能在10.6到10.9中使用?

I am working on a consulting gig in which my client got a prototype for his App to work on Mac OS X 10.10 (Yosemite) by using a storyboard. However the App crashes on 10.9.x and earlier, because the APIs required to use storyboards in Cocoa desktop applications were not yet available.I am working on a consulting gig in which my cl