How to check Exchange Active Directory Versions

Andres Bohren

2023-02-23

Hi All,

Sometimes you need to check the Exchange Active Directory Versions to see if a Schema Upgrade is needet.

It is well documented on the Website from Microsoft

Exchange Active Directory versions

https://learn.microsoft.com/en-us/exchange/plan-and-deploy/prepare-ad-and-domains?view=exchserver-2019#exchange-active-directory-versions

In this Case we use ADSIEdit.msc

Or you simply run this Script

###############################################################################
# Get Exchange AD Schema Version
###############################################################################
#Needs ActiveDirectory PowerShell Module

# Exchange Schema Version
$sc = (Get-ADRootDSE).SchemaNamingContext
$ob = "CN=ms-Exch-Schema-Version-Pt," + $sc
Write-Output "RangeUpper: $((Get-ADObject $ob -pr rangeUpper).rangeUpper)"

# Exchange Object Version (domain)
$dc = (Get-ADRootDSE).DefaultNamingContext
$ob = "CN=Microsoft Exchange System Objects," + $dc
Write-Output "ObjectVersion (Default): $((Get-ADObject $ob -pr objectVersion).objectVersion)"

# Exchange Object Version (forest)
$cc = (Get-ADRootDSE).ConfigurationNamingContext
$fl = "(objectClass=msExchOrganizationContainer)"
Write-Output "ObjectVersion (Configuration): $((Get-ADObject -LDAPFilter $fl -SearchBase $cc -pr objectVersion).objectVersion)"

Regards

Andres Bohren