After months of planning and hard work, Service Pack 1 for SharePoint 2010 Products is live and available for download. Service Pack 1 provides additional functionality and specific fixes, such as the ability to recover site collections and sites from the Recycle Bin, granular management and insight into storage using StorMan.aspx (Storage Space Allocation), and many others.
The SharePoint documentation team has published new and updated articles that were available as of June 28. For more information about these articles, as well as to learn what's new in this service pack, download the Service Pack 1 for SharePoint Foundation 2010 and SharePoint Server 2010 white paper.
The following SharePoint team blog post provides more information about the contents of the service pack, such as its contents, how to download it, and FAQs: http://sharepoint.microsoft.com/blog/Pages/BlogPost.aspx?pID=984.
You can also visit the Updates for SharePoint 2010 Products Resource Center (http://technet.microsoft.com/en-us/sharepoint/ff800847.aspx) to get detailed information about installing the service pack.