Exactly. All minor/revision API changes should be backwards compatible. You can add new optional parameters and new methods/objects, but you can't change the

Exactly. All minor/revision API changes should be backwards compatible. You can add new optional parameters and new methods/objects, but you can't change the semantics of anything existing. If you need a breaking change, that's time to increment the major number. Besides that, who'd want to support that many versions running live?