Click here for patch notes
Biggest change is that lobbies no longer default to custom characters being enabled. This is to promote a similar balance of modded to vanilla lobbies to before character loader was merged into base game, as modded lobbies have become a dominant majority and vanilla players are finding it difficult to find games. You can just as easily make a modded lobby, but now it is opt-in instead of opt-out.
No big shakeups, just more balancing and tweaks. I was a little late to get it in before the summer sale, sorry!