Product Update - Valve
2010 年 11 月 12 日
Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Left 4 Dead 2
  • Encore Mutation: Taaannnkk!!!
  • A vote-kick ban is now applied to players even if they disconnect during voting
  • Additional script commands are cheat-protected