I'm unsure if they have files and other versions of the game, if you're talking about Surge/MicroVault and things like that, other versions entirely. Previous versions of Microvolts Recharged though, I can almost guarantee that they do, I'd imagine it's standard practice to keep previous game versions just in case some major bug occurs and a rollback is necessary. I wish they would have done this with the new sniper bug, although when spoken about, they didn't seem to agree that the severity and replicability were as bad as players were making it out to be (I can't stand the bug myself). They have been made aware of the issue, and with the help of a community member who put together a very useful video comparing the old and new sniper zoom, they should be able to fix it relatively soon.
Sorry for the late response my friend, if anyone wants my attention quickly please quote my replies ๐