I think there may be some confusion over at Donut Central about how a release process is supposed to work. I was recently perusing the Foundation changes in iOS 8 and noticed an absolute gem:
Say what? I went and checked the iOS 7 diffs - it is definitely there!
Here's what the iOS 7 header says:
/*!
@const NSURLErrorBackgroundTaskCancelledReasonKey
@abstract The NSError userInfo dictionary key used to store and retrieve the NSNumber corresponding to the reason why a background
NSURLSessionTask was cancelled
*/
FOUNDATION_EXPORT NSString * const NSURLErrorBackgroundTaskCancelledReasonKey NS_AVAILABLE(NA, 7_0);
and here's the corresponding version from the iOS 8 headers:
/*!
@const NSURLErrorBackgroundTaskCancelledReasonKey
@abstract The NSError userInfo dictionary key used to store and retrieve the NSNumber corresponding to the reason why a background
NSURLSessionTask was cancelled
*/
FOUNDATION_EXPORT NSString * const NSURLErrorBackgroundTaskCancelledReasonKey NS_AVAILABLE(10_10, 8_0);
Reading between the lines, maybe this is code for "We know it is in iOS 7, but it will never actually work".
Next, take a look at how XCode has been released. A few weeks ago we had Xcode 6.1 GM (Gold Master). Then, a bit later, we had Xcode GM 2. Guessing the first one was more of a Silver Master then.