Yeah some patch notes would be nice, from what ive noticed the SC-2012 was nerfed with a bit more recoil and lowered damage, and the PDW fire rate was increased by a tiny fraction(still almost useless )
The in-game muting system was adjusted allowing you to mute individuals. To mute all, mute all except friends, mute all except party, you now have an additional button press, but ultimately there's more choice.
As for other tweaks, glitch fixes, etc. I have no idea.