AD Schema Version Identification

Every time we plan to upgrade our domain controller, the first question pops up in our mind is - Do we need to upgrade our schema?

There is very simple way to check.

From Command Line

dsquery * cn=schema,cn=configuration,dc=testlab,dc=com -scope base -attr objectVersion 

From Powershell

Get-ADObject (Get-ADRootDSE).schemaNamingContext -Property objectVersion

And now compare the output with following table, to know your AD Schema Version.

AD version	objectVersion
Windows Server 2000	13
Windows Server 2003	30
Windows Server 2003 R2	31
Windows Server 2008	44
Windows Server 2008 R2	47
Windows Server 2012	56
Windows Server 2012 R2	69
Windows Server 2016	87