An optional update for Team Fortress 2 and Day of Defeat: Source is available. Please run hldsupdatetool to receive the update. The specific changes include:

Team Fortress 2 and Day of Defeat: Source
- Fixed an issue where Linux dedicated servers would not automatically retrieve master server addresses.

Team Fortress 2:
- Fixed a missing localization string

Day of Defeat: Source
- Fixed a client crash caused by the flashlight