Service Pack 1 of Exchange 2010 has reached general availability. The announcement was made on the Exchange team blog at The Future of Exchange Starts Here: Exchange Server 2010 SP1 Is Now Available.
SP1 includes new features and functionality, such as archiving and discovery updates, Outlook Web App improvements, mobile user and management improvements and improvements to the UI for management tasks.
ISVs enhance Exchange by adding functionality around email, calendaring, tasks, back up and restore, management, and transport.
For a summary of what is new, see What's New in Exchange 2010 SP1.
To get started and to see how you can enhance Exchange 2010, see the Exchange Server Development Center on MSDN.
You can download the services pack at Microsoft Exchange Server 2010 Service Pack 1 (SP1).
Bruce D. Kyle
ISV Architect Evangelist | Microsoft Corporation