The schema version is revealed via the objectversion attribute off of the schema object from your configuration head of the forest i.e “cn=schema,cn=configuration,dc=yourdomain,dc=int”. So using Quest Cmdlets, you can run this query : Get-QADObject "cn=schema,cn=configuration,dc=yourdomain,dc=int" -ip objectversion | select objectversion The –ip is the alias for includedproperties. And, when using the native AD Cmdlets of ...