There is a new Update for Outlook Social Connector 2010 (KB2553406) available to download. As usual, there are 2 versions: 32-bit and 64-bit.
Brief Description
Microsoft has released an update for the Outlook Social Connector. This update provides the latest fixes to the Outlook Social Connector. Additionally, this update contains stability and performance improvements.
Overview
You can get specific information about this update in the Microsoft Knowledge Base article Update for Microsoft Outlook Social Connector 2010 (KB2553406).