The emergence of a new version of Microsoft Exchange Server 2013 introduces some changes to the Exchange environment. These changes concern both the design and administration of the servers.
Microsoft Exchange 2013 Preview can be downloaded here:
System requirements have not changed significantly in relation to the requirements for Microsoft Exchange 2010.
The new Administration Console
In the new version there is a new console to administer servers and users. This console was called the EMC (Exchange Administration Center) and replaces consoles EMC (Exchange Management Console) and ECP (Exchange Control Panel).
The new console is said to have run faster, and she also has the support to be fast in large organizations Exchange.