The soft kind. Major versions are deeply ingrained as "possible backward-compatibility issues" in most engineers' brain. If you handle model development, evalua

The soft kind. Major versions are deeply ingrained as "possible backward-compatibility issues" in most engineers' brain. If you handle model development, evaluation and deployment yourself than sure you won't have any issues, but in a bigger organization you have to get people to switch and that version number will mean that everyone will ask the same "hang on this is a major version change?!" question every step of the way.