I'd like to verify what my Active Directory version on my Windows 2012 R2 DC is. I have another employee here telling me that it is using 2003 version and needs to be upgraded to 2012. I'm not sure what they mean. I checked the schema version and it is 69 (Windows 2012 R2). As far as I know that is the version of AD.
Is there anything else I could be missing?