We've made a few adjustments to the Test Server:
  • Code changes to address problems with doors displaying open when they are closed (and vice-versa)
  • Data changes for recipes - assorted changes
  • Changed large zombie group spawn limits
(for those that check, Steam Build ID is 672500)

NOTE: This is NOT the update for next week - next week's patch is large and taking some time to process - today's patch is testing for bug fixes.

EDIT: a werd or two EDIT: we will be patching this to LIVE at 5am on 6/26
Source: Reddit