July 01, 2010 Patch
Server Browser Server browser now starts centered onscreen when it opens up. Filter panel now starts expanded, instead of hidden. Added a warning dialog that pops up to warn players joining games with more than the recommended number of players. Added a "max player count" filter setting. Renamed quick list checkbox from "Show Map List" to "Simplified List". Mouseover the checkbox now explains the simplified list in the status bar. Quicklist now shows the number of other servers running each map. Fixed a couple of bugs related to toggling the quick list, which were resulting in you needing to refresh again.
Team Fortress 2 Added missing earbud particles for DX8 players. Added new ConVar mp_windifference_min to be used with mp_windifference. Added Engineer to the list of classes that can equip Max's Pistol. Rebuilt sound cache files that were out of date. Source TV: Fixed unlockable items not being visible. Stopped "player is carrying X" messages looping forever. Fixed overhealed particle effect being visible on your current view target when in first-person spectator mode. Changed in-game button colors to be less eyepoppingly bright. Improved Steam Web APIs for TF2 items (see http://www.teamfortress.com/)
Engine Fixed some graphical issues when alt-tabbing during a game. Fixed bullet penetration problems with Linux dedicated server. Removed an exploit that allowed people to change their names to something other than their Steam profile name.