Wow, I guess I got to work on my research skills a bit more.
Spent the last two hours looking for suggestions but didn't find half of what you just posted (probably because I was missing the key word 'versioning')
Spent the last two hours looking for suggestions but didn't find half of what you just posted (probably because I was missing the key word 'versioning')
However, I would name them "v1", "v2" etc. That makes the purpose of the number clear.