Upgrade Exchange 2013 Standard from CU16 to CU23

Jeff Curtiss 21 Reputation points
2021-03-11T20:41:30.737+00:00

I need to upgrade an Exchange 2013 Standard server from CU16 to CU23. Can I directly upgrade or do I need to do it in steps? How would I get the older CU's? My Exchange box has all roles on one server and I'm not doing any DAG's or anything complicated.

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,350 questions
Accepted answer
  1. Andy David - MVP 141.6K Reputation points MVP
    2021-03-11T20:45:33.037+00:00

    Go straight to CU23:

    https://learn.microsoft.com/en-us/exchange/plan-and-deploy/prepare-ad-and-domains?view=exchserver-2013

    Run each step separately first to prep the AD Forest:
    Setup.exe /IAcceptExchangeServerLicenseTerms /PrepareSchema
    Setup.exe /IAcceptExchangeServerLicenseTerms /PrepareAD
    Setup.exe /IAcceptExchangeServerLicenseTerms /PrepareAllDomains

    Then install .net 4.8 on the server

    https://learn.microsoft.com/en-us/exchange/plan-and-deploy/supportability-matrix?view=exchserver-2019#exchange-2013

    then install CU23 FROM AN ELEVATED PROMPT

    https://support.microsoft.com/en-us/topic/cumulative-update-23-for-exchange-server-2013-d3664482-52d4-b36b-6426-0485271070b5

    then install the security patch FROM AN ELEVATED PROMPT:

    https://www.microsoft.com/en-us/download/details.aspx?id=102775

1 additional answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. Joyce Shen - MSFT 16,641 Reputation points
    2021-03-12T07:40:17.963+00:00

    Hi @Jeff Curtiss

    Yes, Andy has provided very complete steps to perform the upgrade.

    Each CU is a full installation of Exchange that includes all updates and changes from previous CUs. When installing a new Exchange server using the latest released CU, you don't need to install Exchange RTM or any previously released CU.

    .NET Framework 4.8 supports for Exchange 2013 CU23, you could just continue.

    Make sure you have meet all the Exchange 2013 prerequisites list in the official document
    And the guide here: Upgrade Exchange 2013 to the latest cumulative update or service pack

    If an Answer is helpful, please click "Accept Answer" and upvote it.

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
     

    0 comments