Well done to the Exchange Team – the Release Candidate for Exchange 2010 is ready. See http://msexchangeteam.com/archive/2009/08/17/451974.aspx
Worthy of note are the following new features in the Release Candidate:
- Support for Windows Server 2008 R2
- Support for in-place upgrade from Exchange Server 2010 Release Candidate to Exchange Server 2010 RTM. i.e. you can planning and deploying your Exchange Server 2010 environment today and rely on a safe upgrade to RTM later.
- Co-existence with Exchange Server 2007 and Exchange Server 2003. For Exchange Server 2007 co-existence, Service Pack 2 (SP2) is required, and will be available later this month.