Hello.  I'm planning to upgrade Policy Manager from v6.6 to v6.8.  It appears from the v6.8 release notes that, for Windows 2012 OS, R2 is required, where for PM v6.6, it was not supported. Do I read that correctly?  Can I install/upgrade to v6.8 without upgrading the OS on the Windows 2012 Standard server?  Thanks. Dennis