Dark Moon
- Added 10 new heroes:
Axe, Legion Commander, Bristleback, Venomancer, Shadow Fiend, Juggernaut, Storm Spirit, Nature’s Prophet, Leshrac, and Witch Doctor.
- Fixed an exploit that let Dark Seer sell items from creep illusions.
- Fixed a bug that could cause the round 5 Bonus Chicken to teleport out too early.
- Fixed a bug with the round summary that could cause a loop sound to play until the next round ended.

Dark Moon Tusk:
- Reduced Tusk’s Ice Shards cooldown.
- Increased Tusk’s Ice Shards damage.
- Increased Snowball damage bonus.
- Increased Snowball stun duration.
- Reduced Sigil’s mana cost.

Dark Moon Phoenix:
- Reduced Icarus Dive cooldown.
- Reduced Icarus Dive hp cost.
- Increased Icarus Dive damage per second.
- Increased Icarus Dive movement slow.
- Reduced Sun Ray’s hp cost per second.
- Increased Sun Ray’s heal percent.

- Fixed Axe's “Culling Blade” with “Blood Chaser” Immortal.
- Fixed a bug where Daily & Weekly Quests in the Battle Pass were not granting their point rewards. These have been retroactively granted.
- Fixed a bug where the trophy and emoticon rewards for winning the Dark Moon event were not being granted. These have been retroactively granted.


Custom Games
- Fixed a bug with Fog of War display in custom games with large maps.
- Fixed an issue with the hero picker blocking the custom game team setup screen by default.
- Fixed a regression in spawning runes in custom games.
- Fixed several issues in Overthrow, Colosseum, and 10v10.

An update has been released for Left 4 Dead.

- Additional fixes to prevent malicious servers from executing restricted console commands on clients.

- Fixed a matchmaking bug which caused longer than expected ranked matchmaking wait times for extremely high MMR players.
- Removed the spectating delay on Dark Moon games.

* Players who win in the Dark Moon event will have a unique Dark Moon emoticon item attached to their account, as proof for beating the final boss.
* Remote Mines now last 4 minutes in Dark Moon
* Added player muting to Dark Moon
* Increased the hit box for the level ping area
* Fixed some cases where UI clicks were unresponsive on low framerates

Fixed some cooldown based proc abilities malfunctioning
Fixed Helm of the Dominator exploits in Dark Moon

An update has been released for Left 4 Dead.

- Fixed a client crash in weapon sounds.
- Fixed a bug that allowed malicious servers to execute restricted console commands on players.
- Fixed a bug that allowed malicious servers to prevent players from executing console commands.

An update has been released for Left 4 Dead 2.

- Fixed a server lagging exploit.
- Fixed some reported security exploits.
- Fixed key bindings not displaying correctly when using the Xbox 360 controller.

New EMS scripting features:
- Added a new interface for reading/writing entity network and data table fields from script. Use "script_help NetProp" for interface details.
- New script function "TakeDamage( amount, type, attacker )".
- New script function "GetNetworkIDString()".
- Added "timeofday" keyfield to the world entity.
- Support auto_spawn of witch bride.

- Edge pan is now disabled while dragging an item.
- Fixed a bug with some item abbreviations failing to populate results in the shop.
- Fixed a bug with saved selection groups for Meepo clones and Beastmaster's summons.
- The geographic distance factor in matchmaking now has a different value for each server.

An update has been released for Portal 2.

- Fixed a full-bright material in cavern areas.
- Integrated some security patches from other Source games.

Fixed portrait spell casting
Fixed being unable to hover over stats while dead
Fixed various UI alignment issues at high resolutions
Fixed visual overlay with Guides on Talent Tree