How to get a list of RUs, SPs and other updates installed for Exchange from a command line or PowerShell?

Question

Is there a way to get a list of updates, rollups, service packs installed for the MS Exchange Server from a command line, PowerShell or Exchange Management Shell?

I already tried Get-Hotfix, Get-WmiObject and Systeminfo but all of the above seem to return lists of updates installed only for the system (Windows) and not for the Exchange.

Edit: Get-ExchangeServer does not satisfy my needs as for Exchange 2010 SP3 it seems to always report Build version 123.4 despite all newer Rollups installed and real build number being 224.2.

Answer 1

The Microsoft-recommended way of getting your Exchange service pack and rollup version is to get the file version info on Exsetup.exe.

In the Exchange Management Shell, use:

Get-Command Exsetup.exe | ForEach-Object {$_.FileversionInfo}

And then look up the version returned against Microsoft's Exchange Server Updates: build numbers and release dates page.

And yeah, that's really as granular as you can get, unless you want to parse a list of all installed updates for Exchange-specific updates.