Microsoft released the March Public Update for Office, that contains 1 security update accompanied by 5 non-security updates.
The security update applies to Groove 2007 (KB2494047) described in Microsoft Security Bulletin MS11-116. Additional info about this update can be found in Microsoft Knowledge Base article Security Update for Groove 2007 (KB2494047).
Joining the security bulletin is an update for Office 2010 (KB2494150) 32-bit/64-bit Editions. This update will decrease installation failures for updates installed on Office 2010. Please see Microsoft Knowledge Base article Update for Microsoft Office 2010 (KB2494150) for additional information.
A non-security update for OneNote 2010 32-bit/64-bit Editions was also released. This update provides fixes associated with displaying search results, fixes to optical character recognition (OCR), indexing, and displaying of inserted documents. Additional information can be found in the Microsoft Knowledge Base article Update for Microsoft OneNote 2010 (KB2493983.).