Active Directory Schema Version

Windows Domain Active Directory Schema Version Details

To find the current Active Directory Schema Version, you can use one of the following methods:

 Note

The internal root domain that we use in this demo is: "domain.local".

Using "ADSIEdit.msc" or/and "LDP.exe" tools:

Navigate to:

"CN=Schema,CN=Configuration,DC=domain,DC=local"

and review the current "objectVersion" attribute.

Using "DSQuery" command line:

"dsquery * cn=schema,cn=configuration,dc=domainname,dc=local -scope base -attr objectVersion"

The following information provides a mapping between the "objectVersion" attribute value, to

the Active Directory Schema commutability:

13 -> Windows 2000 Server

30 -> Windows Server 2003 RTM, Windows 2003 With Service Pack 1, Windows 2003 With Service Pack 2

31 -> Windows Server 2003 R2

44 -> Windows Server 2008 RTM

47 -> Windows Server 2008 R2 RTM

56 -> Windows Server 2012 RTM

69 -> Windows Server 2012 R2 RTM

87 -> Windows Server 2016 RTM

88 -> Windows Server 2019 RTM

To find the current Exchange Schema Version, you can use one of the following methods:

 Note

The internal root domain that we use in this demo is: "domain.local".

Using "ADSIEdit.msc" or/and "LDP.exe" tools:

Navigate to:

"CN=ms-Exch-Schema-Version-Pt, CN=Schema,CN=Configuration,DC=domain,DC=local"

and review the current "rangeUpper" attribute.

Using "DSQuery" command line:

"dsquery * CN=ms-Exch-Schema-Version-Pt,cn=schema,cn=configuration,dc=domain,dc=local -scope base -attr

rangeUpper"

The following information provides a mapping between the "rangeUpper" attribute value, to

the Exchange Schema commutability:

4397 -> Exchange Server 2000 RTM

4406 -> Exchange Server 2000 With Service Pack 3

6870 -> Exchange Server 2003 RTM

6936 -> Exchange Server 2003 With Service Pack 2

10628 -> Exchange Server 2007

11116 -> Exchange 2007 With Service Pack 1

Schema Changes Between Exchange 2000 Server and Exchange Server 2003

Exchange 2007 Schema Changes (SP1)

Microsoft Article Reference - https://social.technet.microsoft.com/wiki/contents/articles/37395.active-directory-schema-versions.aspx