Left 4 Dead Update Released

Updates to Left 4 Dead have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Left 4 Dead

• Fixed an exploit with melee where swapping weapons ignored the intended delay between swings.
• In Versus mode, the Tanks' health now reflects the damage he takes from burning.Fixed an exploit related to the "joinclass" command

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[EriX920]

And now I can't even play SP..

 

[Ray]

Why you cant play anymore SP?