The list of Active Directory Schema versions:
- Windows 2000 RTM = Schema version 13
- Windows Server 2003 = Schema version 30
- Windows Server 2003 R2 = Schema version 31
- Windows Server 2008 = Schema version 44
- Windows Server 2008 R2 = Schema version 47
- Windows Server 2012 = Schema version 56
- Windows Server 2012 R2 = Schema version 69
- Windows Server 2016 = Schema version 87
Check the schema version in the Registry:
HKLMSYSTEMCurrentControlSetServicesNTDSParameters<Schema Version>
