Exchange Schema Version

Exchange Schema Version

After you have updated the schema with the Exchange 2010 changes (RTM or service packs), you can check the current version with adsiedit.msc.

First connect to the Schema:


Expand the nodes and drill down to the name CN=ms-Exch-Schema-Version-Pt.

Right click on CN=ms-Exch-Schema-Version-Pt and select Properties.


Now find the attribute rangeUpper


The possible rangeUpper values are listed in this table (so this example is taken from a Exchange 2010 SP1 installation):

Exchange Version rangeUpper value
Exchange 2000 RTM 4397
Exchange 2000 SP3 4406
Exchange 2003 RTM 6870
Exchange 2003 SP1 6870
Exchange 2003 SP2 6870
Exchange 2007 RTM 10637
Exchange 2007 SP1 11116
Exchange 2007 SP2 14622
Exchange 2007 SP3 14625
Exchange 2010 RTM 14622
Exchange 2010 SP1 14726
Exchange 2010 SP2 14732
Exchange 2010 SP3 14734
Exchange 2013 RTM 15137
Exchange 2013 CU1 15254
Exchange 2013 CU2 15281
Exchange 2013 CU3 15283
Exchange 2013 CU4 15292
Exchange 2013 CU5 15300
Exchange 2013 CU6 15303
Exchange 2013 CU7 15312
Exchange 2013 CU8 15312
Exchange 2013 CU9 15312
Exchange 2013 CU10 15312
Exchange 2013 CU11 15312
Exchange 2016 RTM 15317

You will also be able to use DSQuery as shown here:

dsquery * CN=ms-Exch-Schema-Version-Pt,CN=Schema,CN=Configuration,DC=xx,DC=xx -scope base -attr rangeUpper


And PowerShell:

Get-ADObject -Identity “CN=ms-Exch-Schema-Version-Pt,CN=schema,CN=configuration,DC=xx,DC=xx” -properties rangeUpper


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