Team Fortress 2
Added the Mann-conomy.
Added 65 new items (hats, weapons, tools, minigames, gifts, crates).
Added the Mann Co. Store & Catalog.
Added Trading.
Added Item customization.
Additional TF2 features
Added new auto-team-scramble system:
Set mp_scrambleteams_auto to 1 (default) to automatically scramble the teams if the criteria is met
Set mp_scrambleteams_auto_windifference to set the number of round wins a team must lead by in order to trigger an auto scramble (default is 2)
Updated how Spy disguise targets are selected to more randomly distribute the selections
Fixed the FreezePanel background not using the correct color if you were killed by a player or building on your own team
Server browser tweaks
It will now encourage you to add servers to Favorites or Blacklists after you have a good/bad experience on them.
The Server Browser now automatically closes after successfully connecting to a server (opt-out via the Options-Multiplayer->Advanced dialog)
Achievement tuning
Demoman achievement "The Stickening" changed to 3 from 5.
Heavy achievement "Krazy Ivan" changed to 50 from 100.
Medic achievement "Consultation" changed to 3 from 5.
Medic achievement "Peer Review" changed to 10 from 50.
Medic achievement "Placebo Effect" changed to 2 from from 5.
Medic achievement "FYI I am A Medic" changed to 1 from 5.
Medic achievement "Family Practice" changed to 5 from 10.
Soldier achievement "Geneva Contravention" changed to 3 from 5.
Scout achievement "Strike Zone" now counts assists.
Scout achievements "Fall Classic" and "Foul Territory" are fixed.
Engine (CS:S, DoD:S, TF2, HL2
M)
Added sv_alltalk to the list of convars that are checked for the sv_tags list.
Fixed a model instance crash.
Removed engine ConVar "r_ForceRestore"