A Steam client update is now available. To apply the update, click the File menu inside of Steam and then select “Check for Steam Client Updates…”. The specific changes include:

Steam Client

• Fixed a case that could cause stats and achievements to be reset
• Show timestamps in both group and individual chats based on global setting
• Fixed a Steamworks api crash that was affecting Call of Duty: Modern Warfare 2

Tweaked the connection fallback logic to be more robust