SharePoint 2010 October 2011 Cumulative Updates
28 Oct 2011 | SharePoint 2010SharePoint Foundation: http://support.microsoft.com/kb/2596508
SharePoint 2010: http://support.microsoft.com/kb/2596505
Project Server: http://support.microsoft.com/kb/2596506
Office 2010 Cumulative Updates for October 2011: http://support.microsoft.com/kb/2618119