Well it was meant to indicate the first season was completely finished. But we discovered some issues, and it ended up needing more work. Answer is no, I don't THINK any saves should break, as there are no new variables being introduced that aren't set in your save. One just got moved to the side story file.
Viewing post in [BUGFIX INCOMING] Some Adjustments to the Rework comments
I think the easiest "fix" would be to elaborate a little bit on how the version numbers work. (Maybe in that first little paragraph at the top of the game's main page?)
I haven't seen any confusion yet for this game about it, but I have seen it a couple of times for other games that did something similar with their version numbers.
Oh shit. That's not a bad idea. My thought process is thus:
1.2.2.2
First digit (1) = the last season that I consider fully complete
Second digit (2) = the last episode that I consider fully complete in the new season
Third digit (2) = the approximate progress (main + side content) toward the finishing of the next episode
Last digit/two digits (2/20) = the most recent bugfix version