Microsoft today released the first service pack (SP1) for Office 2010 since the product’s launch in June of last year. This SP1 update consists of several cumulative and public updates to date for products such as Office 2010 Suite, Project 2010, Visio 2010, Office 2010 Web Apps, Sharepoint 2010, and Search Server 2010.
Office 2010 SP1 contains two types of fixes. The first being previously unreleased fixes that were made specifically for this service pack. Aside from the general fixes, the service pack also includes improvements in stability, performance, and security. The service pack also includes all public updates that were released through June 2011, and all the cumulative updates that were released through April 2011.
For a full list of changes, download the Microsoft Office 2010 Service Pack 1 Changes Excel Document.Microsoft, Office 2010