Left 4 Dead 2 - Valve
Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

- Fixed a bug where server tags were getting truncated, preventing players from finding Steam Group servers.
- Updated video card database with the latest hardware
Red Orchestra 2: Heroes of Stalingrad with Rising Storm - Valve
Modding and map making tools are now available free to everyone that owns Red Orchestra 2! While the limited functionality preview versions of the SDK have been available to select modders for a while, this release now makes the full capabilities of the Mod SDK available to everyone. Other changes in this update include:

General
- Settings menu bug fixes (e.g. Changing Vsync setting now requires a restart)
- Switching roles/teams while in a tank should now work properly
- Melee hit detection improvements. For example, it is now possible to hit a prone player with a bayonet while standing.
- The commanders order marker will now disappear properly when aimed at the sky instead of getting stuck at some location in the map
- Countdown maps will no longer show the improper amount of manpower when a new player joins during a match in progress

Performance / Stability
- Crash fixes based on .dmp files provided by players
- Fixed occasional freezing when spawning
- Updated Punkbuster to address framerate spike
- Overall performance optimization

------------------------------------------------

SDK: How to use redirects to download custom maps (Modders)
- Publish your custom map using the publish button in the editor. This will 'cook' twice because the server needs a different version.
- Grab the files from Published/CookedPCServer/ and give those to your server admins. Remember to clearly label these as server files.
- Grab the files from Published/CookedPC/ and give those to your server admins clearly labelled as client files. You must rename the published map files from .roe to .upk.

SDK: How to use redirects to download custom maps (Server Admins)
- Place the server content into ROGame/CookedPCServer
- Place the client content, removing any sub directories, at an http address. If the client content contains any .roe map they must be renamed to .upk.
- Add the following to ROEngine.ini:

[IpDrv.HTTPDownload]
RedirectToURL=http://pathtoyourredirect/

- Clients will now automatically download the custom content when connecting to your server
Sword of the Stars II: Enhanced Edition - Valve
r18950b
------

Critical Fixes:
+ Fixed the known issues where ships would not respond to controls.
+ Fixed a design screen boarding pod-related crash.
+ Fixed an AI crash that could occur when issuing orders to fleets.
+ Fixed a crash related to Hiver AI trying to set Gate missions.
+ Fixed a crash that could occur when entering combat with police cutters.
+ Fixed the rare crash that could occur when previewing maps when creating a game.
+ Fixed the crash that could occur when combat salvage generated a special project.
+ Fixed a game lockup that could occur when entering combat at a system with no orbiting bodies.

Other Fixes:
+ Fixed known issues where planet missiles and boarding pods were missing certain ship sections.
+ Fixed the issue where only one module of the same type would show up in the design screen.
+ Fixed some known Battleship rider issues with Leviathan class carriers.
+ Fixed Hiver, Human, and Liir boarding pod speeds.
+ Fixed Drone configuration issues with the Horde Drone Satellite.
+ Fixed incorrect display of armor in the design screen.
+ Fixed a couple issues causing different combat results at different time scales.
+ Fixed the launch pattern of planet missiles, which should lead to planet defenses being more effective.
+ Fixed the issue where feasibility could be displayed as 0%.
+ Fixed Meson Beam Length and the issue where its impact effects were not positioned correctly.
+ Fixed some issues where ships could fly over planets in combat.
+ Fixed the missing sound cue for relocate missions.
+ Fixed duplicate speech events for research breakthroughs.
+ Fixed an issue where the empire summary was counting fleets incorrectly.

Other Changes:
+ Various weapon and section tweaks.
+ Sensor information is now shared by players in teams (allied for example) in combat.

Known Issues:
- Overlapping start points can occur at star systems with no orbiting bodies.

Jan 7, 2012
Xotic - Valve
Xotic 2.4 is now available. The update adds windowed mode, improved translations, and a variety of fixes for customer-reported issues.

NEW FEATURES:
• Game can now be run in windowed mode

IMPROVEMENTS:
• Improved translations for all languages
• Brain Freeze achievement is now obtainable after winter sale
• Upgrade screen is bypassed in time-attack modes
• New indicator in time attack modes shows remaining goals

FIXES:
• Weapon switch timers are now reset properly
• All-Time High Scores calculation error fixed
• Fixed crash when no audio device is installed
• Fixed crash when game clip has bad data
• Fixed crash in how to play screen if gamepad control is not used
• Fixed issue with game window positioned incorrectly on non-Aero themes

Dino D-Day - Valve
- Fixed Trigger's "infinite" melee when using press-to-hold ironsights option.
- Fixed Trigger/Stygimoloch being able to fire through spawn doors when standing directly in front of them.
- Fixed sticky bombs passing through spawn doors periodically.
- Put Raptor's updated eating animation back in.
- Hardgrave can no longer go berserk while being eaten by a Trex.
- Fixed bug where Compy detonations would not kill the Compy if player was standing inside a present.
- Trigger can no longer melee a raptor while he is pounced.

Stronghold 3 Gold - Valve
Stronghold 3
Version - 1.7.25411
Patch Notes

- Fixed the issue with the campaign not continuing after loading in a save game from the main menu.
- Fixed an issue with sections of wall disappearing when loading in a save game.
- Fixed crash if closing a gatehouse when troops are moving through it.
- Several building footprints have been reduced.
- Buildings can be rotated by using the keyboard. Pressing SHIFT or CONTROL will allow the Q/E keys to rotate the building.
- Troops will no longer fall through the floor when crossing Stone Bridges.(User maps with this issue will need to be re-saved)
- Fixed the Fletcher occasionally making the bows in the stockpile.
- A few other potential crashes have been fixed.
Team Fortress 2 - Valve
An update to Team Fortress 2 has been released. The update will be applied automatically when you restart Team Fortress 2. The major changes include:
  • Naughty/Nice Winter Crate Keys have been changed to regular MannCo Crate keys.
Dungeons of Dredmor - Valve
CHANGELOG:

- FIXED: Save game compatibility with 1.0.8 save games.
- FIXED: Save game issues on levels > level 2.
- FIXED: crash looking at bookshelves containing a wand recipe
- FIXED: hordes spawning off screen causing crash in script code. (This was the Moustache Fighting League. Again. Not even kidding.)
- FIXED: primary and secondary stat buffs not loading in mods.
- Redrew minimap icons so that they are beautiful.
- Additional wandcrafting recipes.

FlatOut 3: Chaos & Destruction - Valve
Patch4
- Improved physics
- All vehicles unlocked in multiplay
- Improved crashes and collisions behaviour
- Improved performance, less stuttering.
- Steeringwheel bugs fixed!
- Reduced tiresmoke effect on asphalt
- Less 'chaos and destruction' startgrids for races
- Class restriction defaults improved!
- 'Classic' gamemode option now also available in challenge mode.
- More game mode options available: besides "Classic" and "Chaos&Destruction" there is now also something inbetween, which has become the default setting.

Jan 3, 2012
EDGE - Valve
Happy new year!

- Fixed incorrect level model in certain conditions.

...