Lies, I have Better Quests active right now and I am in-game just fine. Rather, you folks having issues should check if you have any “chat” related add-on(s) active as those are the highest likely cause of your game crash(es) due to the chat system being overhauled by this patch. Lastly, verify your game file integrity thru Steam as a possible last resort before heading over here.
It’s supposed to be “common knowledge” to make sure you have a clean copy (this means removing any addons prior to patching EVEN IF they wouldn’t directly affect the files of the game) of the game prior to any major updates/patches.