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SteveJD's avatar
SteveJD
Copper Contributor
Jan 08, 2026
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Upgrading to Exchange SE

Hi, I currently have Exchange 2019 and need to upgrade to SE. When attempting an upgrade the process didn't appear as expected.  Articles I've read basically said the process should be the same as ...
  • Scott_Schnoll's avatar
    Jan 08, 2026

    Hi SteveJD​,

    15.2 2562.17 is the SE RTM build number.  You can track all Exchange Server release information at https://learn.microsoft.com/exchange/new-features/build-numbers-and-release-dates. 

    It looks like you're re-running Setup using SE RTM, which is why it does not look like an upgrade.

    Exchange Server SE is available in four Editions:

    • Enterprise, which supports a maximum of 100 mounted databases per server.
    • Standard, which supports a maximum of 5 mounted databases per server.
    • StandardEvaluation, which is a 180-day time-limited Standard Trial Edition.
    • Coexistence (aka Hybrid Deployment), which maintains the hybrid relationship with Exchange Online.

    So, the output you see from Get-ExchangeServer is showing you the correct Edition.

    Unfortunately, this can be confusing because SE also uses the word Edition in its name, but these are two different things (one is simply the product name, and the other is determined by product key).

    You can verify your installation specifics using the https://aka.ms/exchangehealthchecker, or by running the following PowerShell command on your Exchange server:

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

    Hope this helps!

     

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