I want to use the newer APIs in the Store Kit to validate receipts. The methods to do this are described in the documentation but with one thing missing - the necessary frameworks and headers. Linking against the AppKit and StoreKit frameworks doesn't help. What frameworks and headers would I need to get XCode to recognize for example, AppTransaction?
Also some of the documentation is in Swift only. Is this a subtle hint that Apple is moving towards a Swift-only development environment?