Reading through the documentation I see where MS 2012 is supported but wanted to find out if R2 is supported yet?
Since the link under 'Start Using FSM v6.6' points to an older revision of the System Requirements link I wanted to verify.
SolarWinds Firewall Security Manager version 6.5, revised 5.22.2013
Requirements Operating System Install FSM on a 32- or 64-bit computer running any of the following operating systems:
Windows Server 2003 or later (including SP2)
Windows Server 2003 R2 or later (including SP2)
Windows Server 2008 or later (including SP2)
Windows Server 2008 R2 or later (including SP1)
Windows Server 2012
Windows 7 (clients only)
Windows 8 (clients only)