How to find the current Schema Version

This article describes how to find the current Schema Version.

Original product version:   Windows Server 2012 R2
Original KB number:   558112

This article was written by Yuval Sinay, Microsoft MVP.

Summary

The following articles will help you to find the current Schema Version.

Tips

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".

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

    Navigate to:

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

    and review the current "objectVersion" attribute.

  2. 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

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".

  1. 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.

  2. 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)

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