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CHANGELOG.md

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There are several changes in Xcode 6.3 that affect the Swift language, as well as its standard library. We've updated the code in this repository to bring it up to date, but this means that the code in the book doesn't line up with the code in the repo.

The main changes are:

  • NSApplicationMain(C_ARGC, C_ARGV) has been replaced with NSApplicationMain(Process.argc, Process.unsafeArgv).

  • Several methods that were implementations of protocols had the optionality of their parameters changed. For example, the applicationDidFinishLaunching parameter originally had a parameter of type NSApplication!, which has now changed to NSApplication.

  • Several properties changed from being optional to non-optional, or vice-versa.

  • Swift now has a "forced cast" operator, as!, which is used when down-casting from a class. We've update the code to use as! when appropriate (such as when downcasting from NSObject to CLLocation)

  • Changed NSCalendarUnit.DayCalendarUnit (which was deprecated) to NSCalendarUnit.CalendarUnitDay.

  • Changed "countElements" to its new replacement, "count".