We’ve been waiting for the new L4D2 Cold Stream DLC package for a few months now. On the 6th, Valve announced that if 20,000 people would complete the new public beta version of the Cold Stream campaign by the 9th, the updated version of Dead Air (from L4D1), a Dead Air 2, if you will, would be split off from the main Cold Stream DLC package, and released on the 22nd of July.
By the 7th of July, after a mere 24 hours, almost 61,000 people had completed the new beta version of Cold Stream. And make no mistake, Valve plans to keep their promise!