Can I debug iOS 4.3 using GM Xcode 4 on iOS 5?
Can I compile 开发者_JS百科with my 4.3 SDK Xcode 4 GM on an iPhone using iOS 5?
I think it's the same as running/debugging any other existing iOS 4.3 app on a device running iOS 5, whether from the device itself or from Xcode. You'll just run into the same bugs for anything that has changed/broken in iOS 5.
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