After a rocky start to the morning (with client version we patched the major crash bug that appears to have been caused by some threaded code issues. After seeing the volume of crashes, we locked the servers until we addressed the significant crash.
  • A few reports have come in about the client hanging on exit, we're looking at that.
  • The zombie density and distribution changed pretty significantly, so you will find them in different areas, and hopefully in generally larger amounts. You will probably find FEWER of them wandering lonely in the wilderness for now.
  • With the increase in zombie and other characters, there's a chance there will be lag-related issues.
As usual, I will update if we find more things and you can reply here with additional issues.

UPDATE: We're looking at the adjustments to reduce the lag-related issues.

UPDATE: I've been on the servers most of the day adjusting settings to deal with some of the lag issues, and the team is also making some other adjustments to deal with some additional slow-downs on the server side of things.

Source: Reddit