June 9, 2008 Patch

From TF2 Wiki

1. Particle rendering/simulation performance increase
2. Changed video options initialization to fix some HUD resolution problems in mods
3. Fixed crash issuing the last disguise command when not connected to a server
4. Fixed rare crash on exit
5. Fixed a couple of issues with gamestats reporting incorrect values
6. Fixed an exploit that allowed clients to crash servers

http://store.steampowered.com/news/1613/