Document Revision History

This table describes the changes to SKPaymentTransactionObserver Protocol Reference.

2012-09-19Describes new features added in iOS 6.
2011-06-06First release of this document for OS X.
2010-01-20Fixed a typo.
2009-11-17Marked which methods in the protocol are optional.
2009-07-13Added descriptions of restored transaction methods.
2009-05-01Minor edits.
2009-03-12New document that describes an interface for observing transactions updated by the payment queue.