It doesn't appear that my app is using the API v1. Is this possible that my app doesn't use API v1 or v2 interface with dropbox? How can I determine this. I read a previous post about looking into the DBSession.m file to determine the API version, but I don't have a DBSesson.m file. It's been so long since I wrote the app in Objective C that I can't seem to figure out if I need to update my app. Any help is greatly appreciated.