How to find the current Exchange Server Schema Version

In a previous post I showed how to determine the current version of Schema version for Active Directory for this one I will show how to determine the Schema version for Exchange server.

In contrary to Active Directory , installing of a higher in service pack within the same edition can cause schema version change , as you can see below ( I added Forest ObjectVersion and Domain ObjectVersion as a bounce ) :

Exchange edition	Schema version	Forest objectVersion attribute of Organization container	Domain objectVersion attribute on Microsoft Exchange System Objects
Exchange 2000 RTM	4397	-	4406
Exchange 2000 SP3	4406	-	4406
Exchange 2003 RTM	6870	6903	6936
Exchange 2003 SP1	6870	6903	6936
Exchange 2003 SP2	6870	6903	6936
Exchange 2007 RTM	10628	10666	10628
Exchange 2007 SP1	11116	11221	11221
Exchange 2007 SP2	14622	11222	11221
Exchange 2007 SP3	14625	11222	11221
Exchange 2010 RTM	14622	12640	12639
Exchange 2010 SP1	14726	13214	13040
Exchange 2010 SP2	14732	14247	13040

Now , here are how to find your current Exchange Schema version ( for all , replace data in italic with yours )

• Using GUI : by using either ADSIEdit / LDP.exe , navigate to :

"CN=ms-Exch-Schema-Version-Pt,CN=Schema,CN=Configuration,DC=itguydiaries,DC=net"

• Using Directory Services command line ( DSQuery )

dsquery * CN=ms-Exch-Schema-Version-Pt,cn=schema,cn=configuration,dc=itguydiaries,dc=net -scope base –attr “RangeUpper"

• Using Active Directory module for PowerShell

Get-ADObject "CN=ms-Exch-Schema-Version-Pt,cn=schema,cn=configuration,dc=itguydiaries,dc=net" -properties UpperRange

Hope that was helpful