- Support for installing and deploying Exchange 2010 on Windows Server 2012;
- Support for Internet Explorer 10 to connect to Exchange 2010;
- Coexistence with Exchange 2013.
Important: Exchange 2010 SP3 allows Exchange 2010 servers to coexist with Exchange 2013 CU1, which is scheduled to be released in February 27th.
Please also note that this Service Pack requires schema updates.