The point here is that you can do this more easily. Consider a really dumb example /people/12345 becoming /people/v2/12345 Sure, you still have to support the

The point here is that you can do this more easily. Consider a really dumb example /people/12345 becoming /people/v2/12345 Sure, you still have to support the old version (maybe only temporarily), but migrating schemas gets marginally easier (you can do it via an entirely different service, for example)