Just use this::
https://technet.microsoft.com/en-us/library/hh135098(v=exchg.150).aspx
Microsoft Exchange Server | Version |
Microsoft Exchange Server 2007 | 8.0.685.24 or |
Microsoft Exchange Server 2007 SP1 | 8.1.240.006 |
Microsoft Exchange Server 2007 SP2 | 8.2.176.002 |
Microsoft Exchange Server 2007 SP3 | 8.3.83.006 |
Microsoft Exchange Server 2010 | 14.0.639.21 |
Microsoft Exchange Server 2010 SP1 | 14.1.218.15 |
Microsoft Exchange Server 2010 SP2 | 14.2.247.5 |
Microsoft Exchange Server 2013 | 15.0.516.032 |
Exchange 2016 Preview | 15.01.0225.042 |
Exchange Server 2016 RTM | 15.01.0225.016 |