Team Fortress 2 Update
Source Engine
* Refactored how lightmaps are downloaded to the graphics card at level load. On some hardware configurations this can lower level load times significantly
* Optimized some particle systems to improve performance on some hardware configurations
* Player stats are now sent up as they change, rather than when the player dies
* Improved playback of sub-frame sounds
* Fixed a crash caused by alt-tabs during map load
* Eliminated unnecessary temporary memory allocation in scenefilecache
Team Fortress 2
* Badlands released
Changes to Dustbowl
+ Added a new access point to the stage2 attacker gates (drop-down left from spawn), allowing attackers a way to reach the left route without being subjected to the spam and sentry gun fire
+ Fixed a gap in stage 3, cap 1 that allowed a player with to wiggle above the "ceiling" clip
+ Fixed a gap behind stage 1, cap 1 house
+ Fixed a high perch on stage1 cap1 house roof
+ Fixed a perch offering view of nodraw textures and the skybox (stage1 cap2 rock barrier)
+ Fixed a few places where rockets/demoman pipes could pass through non-solid models
+ Sealed up a gap over stage1 lower startgate
+ Clipped off tall windows in stage 3 to prevent sentry guns from behind built behind them
Changes to Capture the Flag Well
+ Fixed trains not starting on map spawn
+ Removed cap association from red spawns that were spamming console
Changes to Granary
+ Removed spawn timing advantage from the middle (from -3 to 0)
+ Fixed several model perch exploits (red, blue cp1 gate and blue cp2 gate pipe)
+ Fixed a few places where players could get stuck between containers and silos
+ Adjusted playerclips on red container that made it appear like players were floating
+ Added a small delay (200 ms) before a zoomed sniper shot can get a critical hit
+ Added server side convar mp_fadetoblack. Same functionality as Counter-Strike, used mainly during in-person tournaments and LAN events
+ Added flamethrower "sizzle" sound when the Pyro is hitting a target
+ Updated explosion debris to be a bit darker
+ Fixed idle players not being kicked from the server if mp_allowspectators was set to 0
+ Added ctf_well to the default mapcycle.txt file
+ Added ctf_well to the default motd.txt file
+ Fixed floor tile material type
+ Fixed some weapon damage info missing from TF2 game stats
+ Made some small changes to the Demoman viewmodel that were causing performance problems
+ Added exec'ing a .cfg file on the client when you select a class to play.
+ Added a new timer to the HUD to show the value of mp_timelimit. This is useful if you're playing a timed match on 2Fort, where you only set a timelimit on the server and no other win conditions.
+ Added server log entry for buildings destroyed by their owner
+ Fixed sentry gun shadows being clipped
+ Updated glass material
SourceTV
+ SourceTV now uses a hidden slot on the game server. This allows for 24 player servers to also have a SourceTV proxy connected to it
+ Fixed Pyro's flamethrower flames not showing up in SourceTV
