An update to Team Fortress 2 has been released. The update will be applied automatically when you restart Team Fortress 2. The major changes include: Added a new startup music track from Expiration Date Added Crate #84 and Crate #85 to the drop list Added a new promo item Fixed a Mann vs. Machine dedicated server crash Fixed materials not refreshing correctly in the Steam Workshop item import tool Fixed a bug where cloaked Spies would be visible to some players Fixed an exploit where Engineers could build level 3 mini-sentries Updated the localization files Updated the backpack page buttons to indicate how many items the pages contain Updated Hammer to add a new Normal Mode for the Sculpt tool "Screen XY" automatically chooses the axis most aligned with current view's XY axis for push/pull displacement editing More...
That's the promotional item which was added? Is so I'm not sure what game that's supposed promote, unless it's something Valve related, or crab related.