I wrote[0] about a method I've used with success in the past. Essentially you use the previous version's hash as the name for the next version. The benefit is that merging the work of multiple developers is easier. I ran the process manually when I did it and would love to hear if someone writes a script that makes the process easier.

[0]: https://medium.com/@clord/for-migration-of-schemas-use-versi...