Thanks to your testing and feedback we have gotten more data on Blood Harvest. The change will come in a little rough at first and then we will clean it up if people prefer it over the current version. We also have a change to the finale that we want to get some more testing on. Before we officially release a campaign it needs to hit some performance benchmarks and be able to keep a minimum number of frames per second throughout the campaign. We have been working on some performance issues. The second most popular question, when is the next update to the Cold Stream Campaign? Soon. At the current rate of testing, feedback, and updating we are looking at around Halloween. The most popular question these days is when will the complete Cold Stream DLC be released? We have been saying end of summer, but that looks to be slipping quickly by. Please post all feedback and bugs to the L4D2 Steam Forums. No hints on what the changes are, we want you to play with fresh eyes. It will be interesting to see what people think of those changes. We have made a few changes based on issues we saw during internal testing. We are releasing the beta version of Death Toll today.

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