AFIncrementalStore seems to have a dependency on AFHTTPClient which is no longer available in AFNetworking 2.0? Is there an updated version of AFIncrementalStore for AFNetworking 2.0, or am I just missing something?
You're not missing anything, unfortunately there is no updated version of AFIncrementalStore for AFNetworking 2.0. It seems that AFIncrementalStore is not actively maintained at the moment.
There are a couple of issues, #242 and #248, where some support has been provided by third parties.