Steam news announces a new automatic patch for Left 4 Dead 2 with localization fixes for the zombie shooter sequel, as well as this week's new mutation, "Gib Fest." The Left 4 Dead Blog outlines how this works: "Swords can slice up some fun. Chainsaws can tear apart the infected. But you need to get close for both and well… chainsaws are really loud! Time to go with the ultimate gun, you and three friends armed with M60s and unlimited ammo. This is going to get messy."