November 2, 2009 Patch

From TF2 Wiki

• Added Bill's Hat for players who pre-purchase Left 4 Dead 2
• Fixed client-side perf problem after changing levels on Koth_Harvest_Event

Source: http://store.steampowered.com/news/3044/

Patches
Preceded by October 29, 2009 Patch	November 2, 2009 Patch	Succeeded by December 7, 2009 Patch