I sometimes get the question how one can verify what the version of Exchange they’re running in the cloud. Although it should be pretty obvious based on the GUI (Exchange 2010 vs. Exchange 2013) and the fact that the latter isn’t generally available yet, it could come in handy once it does. According to some sources, the release might be sooner than later.

Additionally, when you’re planning on going hybrid with the new version of Exchange in Office 365, you’ll have to make sure your tenant isn’t in the process of being upgraded and is running version 15.

To check the version, open up a PowerShell session to your Office 365 tenant and run the following command:

Get-OrganizationConfig | ft AdminDisplayVersion,IsUpgradingOrganization

With the command for connecting to Office 365 via PowerShell, that would look something like this:

$session = New-PSSession –ConnectionUri https://ps.outlook.com/powershell –AllowRedirection –Authentication Basic –Credential (Get-Credential) –ConfigurationName Microsoft.Exchange

Import-PSSession $session

Get-OrganizationConfig | ft AdminDisplayVersion,IsUpgradingOrganization

Running these commands would then lead up to a result similar to the following:

Get-OrganizationConfig | ft AdminDisplayVersion,IsUpgradingOrganization -Autosize

AdminDisplayVersion IsUpgradingOrganization
------------------- -----------------------
0.10 (14.16.190.8)                    False

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