In our experience, API versioning hits a roadblock in three cases: 1. Mandatory new field. 2. Field is split. For example, address field is now divided into

In our experience, API versioning hits a roadblock in three cases: 1. Mandatory new field. 2. Field is split. For example, address field is now divided into street1 and street2. 3. Change in datatype. In the above three cases, we had to force users to upgrade their versions.