Clarify Subscription Flow 2.0

The APIs and Schemas mentioned in diagrams in subscription flow 2.0 and that mentioned in the API swagger are inconsistent. Could you please add documentation for v0.5 APIs. I see documentation for only Subscription Flow 2.0.

Also, What about documentation and swagger APIs for v2 ? Are they available ?

Also, just for the sake of clarification, are the schemas mentioned on swagger in accordance with beta (v3) or v0.5 APIs defined on the swagger page ?