Currently we are using the v1 Core API to suport users accessing their Dropobox content via our apps on 3 ptatforms (iOS , MacOS, and Windows) with App Folder permission. We are likely to migrate to the v2 API in our iOS app first with the two desktop apps to follow later. If we migrate a user to the v2 API in our iOS app will that cause any problems for this user acessing their content in our desktop apps which may still be using the v1 Core API? Or do we need to release this support simultaneously?