Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. XBOX 360 users will see these changes in an upcoming title update. The major changes include:

Left 4 Dead 2
  • Fixed all bot teams not leaving the starting area if sb_all_bot_team 1 was set
  • Fixed a case where survivor bots would fail to rescue a friend from charger attacks
  • Updated Thai translations
  • Fixed an issue where servers wouldn't relist after the master server was bounced
  • Fixed Charger jumping exploit
  • Fixed Spitter bug where spit could emit from a location several inches from the head, causing the spit to unexpectedly strike nearby objects and fall