0.4.1 was a small update to remove from hidden files that didn't need to be included.
This update changed how stats, rosters, and contracts were handled internally. It involved rewriting about 5% of the game, but by doing so there should be really quick saving and loading even in franchises dozens of seasons in.
Also, memory consumption should be lowered by a fairly decent amount in franchises that are several seasons in. There are a few more improvements I can do in this area moving forward, but I'm going to shelf them for later.
I tried to be careful when rewriting the code (that literally touched every part of the franchise mode), but theres probably a good chance I've broken something. If anything seems to not be working properly please let me know.