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Hi All,
Just to check whether is it possible to update my exchange server cu from 12 to 19. The .Net version is already 4.8
Hi All,
Additionally question, just to prevent if my upgrade fail, what is the best approach to backup? Using hyper-v checkpoint, server os backup or my arc serve backup?
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Hi @soapy ,
You can use Windows Server Backup to back up Exchange databases. Besides, according to the best practices in this official link, it's suggested to "test the new update in a non-production environment first to avoid any problems in the new update affecting the running production environment".
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Hi @soapy ,
Each CU is a full installation of Exchange that includes updates and changes from all previous CUs so you can go directly from CU12 to CU19. And as suggested by AshokM, considering that you have already installed .Net 4.8, it's recommended to upgrade to CU19 right away.
Additionally, please be sure to install the KB5000871 right after upgrading to CU19 in order to fix the known security vulnerabilities including March 2021.
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Hello,
How safe is the update path from Exchange 2016 V15.1.2176 to a Cu23 or can I install the last Exchange Server 2016 CU23 Aug23SUv2 Update without any problem.
It is a MS Server 2016 Exchange (German OS)
Hi @soapy ,
Yes, its possible to upgrade from Exchange 2016 CU12 to CU19. Since you already installed .NET 4.8, please plan to update the Exchange CU19 immediately by installing other pre-requisites as .NET 4.8 is not supported with CU 12.
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Hi AshokM,
My exchange cu is 12 and .net 4.8 and it is running fine as of now. What are the pre- requisites need to be installed? It can't be upgrade directly?