ZCM 10.3.2 upgrade to 11.2

I am getting ready to upgrade to 11.2 from 10.3.2 and I am reading through the upgrade guide and other stuff. I noticed in the upgrade guide it says that "Windows Server 2008 is no longer supported as a Primary Server." Our primary server is not at 2008 R2 it is Server 2008 SP2. I then looked at the primary server requirements for 11.2 and it shows "Windows Server 2008 SP1 / SP2 x86, x86_64 (Enterprise and Standard editions)" as being an option. So when the upgrade guide says that Windows Server 2008 is no longer supported to they mean Server 2008 without any SPs is not supported or do they mean that I have to be at Server 2008 R2?

Thanks,
Andrew