Microsoft has released the final version Service Pack 1 for Office 2010. It is a quite surprise since there was not been any BETA versions of Sp1 announced and testing has been done by a bunch of selected beta testers.
To get an overview of enhancements in Office 2010 Service Pack 1, please visit this knowledge base article
and Service Pack 1 for Visio 2010, Project 2010 and SharePoint Server, Designer & Foundation 2010 is also available for download via Microsoft Download Center
To quickly download Office 2010 Service Pack, please use the link given below.
Download : Microsoft Office 2010 SP1 x86
Download : Microsoft Office 2010 SP1 x64
SharePoint Server 2010 – Sp1
Other Office Server 2010 Updates