Engine (CS:S, DoD:S, TF2, HL2:DM)
* Removed the rate limit for the "status" command when entered into the server console
* Fixed an exploit that allowed people to send fake server messages to clients
* Significantly improved engine vertex compression (large reduction in per-model memory usage)
Team Fortress 2
* Added TF2Maps.net Art-pass contest winners:
o Mountain Lab
o Mann Manor
* Halloween 2010 Event
o Mann Manor is haunted by the Horseless Headless Horsemann.
o Random gift drop in Mann Manor.
o 4 new Halloween achievements.
o Added new Halloween hats.
o Added a new Halloween weapon.
* Added Gift Wrapping of gifts to the store.
* Added Custom Description tag to the store.
* Added the community created "Swamp Theme" assets, so all maps can use it:
o See
http://swamp.tf2maps.net/ for full details.
* Updated cp_coldfront with the latest changes from the community creator (Icarus):
o Improved visibility on last CP.
o Moved second CP slightly closer to the attacker's side.
o Added cover for players queuing up the health pack on the second CP.
o Improved clipping on the zig-zag ramp to middle CP.
o Teams that capture the middle CP are now awarded with faster spawn times.
* Added a health penalty to the Rocket Jumper.
* Added the Sticky Jumper for Demomen to practice jumping.
* Fixed the Sandvich charge meter.
* Fixed glows not drawing correctly when using antialiasing on some computers.
* Improved the checks that trigger mp_scrambleteams_auto.
* Added console commands to initiate trades directly (cl_trade/cl_trade_steamid) to help people running trading servers