Exchange Server 2010 SP1 Beta incorporates a number of feature updates including archiving and discovery enhancements, a faster Outlook Web App (OWA), upgraded mobility features, and several improvements in the management UI. The SP1 beta is available to the public and can be downloaded today.
Recently, Exchange Server 2007 Service Pack 3 was also made available to customers in 11 languages for both 32 and 64 bit. As highlighted in the recent post on the Exchange Server Team Blog, this service pack was created in response to strong customer demand for Windows Server 2008 R2 supportability for Exchange Server 2007. In addition to the newly supported OS, this service pack also provides updates to a number of core components and the reintroduction of the password reset functionality within OWA for customers using Windows Server 2008 and Windows Server 2008 R2.