Via the Steam Store:

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:<br/> <ul style="padding-bottom: 0px; margin-bottom: 0px;" ><li>Fixed Festivize Woodsy Widowmaker not drawing the lights <li>Fixed the main menu being muted if clients disconnect from a server while in freezecam <li>Updated festivized items to use "Festivized" in the name instead of "Festive"<ul style="padding-bottom: 0px; margin-bottom: 0px;" ><li>This will help disinguish the original Festive weapons from weapons that have had a Festivizer applied to them</ul><li>Updated Strangifiers so they can no longer be applied to War Paint items <li>Updated the equip_regions for the The Koala Compact, Pocket Saxton, and Pocket Yeti </ul>Missed note from the Smissmas update:<ul style="padding-bottom: 0px; margin-bottom: 0px;" ><li>Australium weapons can now be Festivized </ul>