Monobjc QTKit Assemblies for Versions Prior to OS X 10.9 Do Not Include Recently Deprecated API's

The QTKit assemblies for versions prior to OS X 10.9 do not include the recently deprecated API's.  For example, the Play() method of QTMovie does not exist in the 10.7 version of the assembly.  What is the recommended approach to continue using QTKit functionality?
