Go straight to it:
First Prepare the Forest
Run Each required Step Separately:
https://learn.microsoft.com/en-us/exchange/prepare-active-directory-and-domains-exchange-2013-help
Then Apply .net 4.8
Then:
Apply CU23:
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running Exchange 2013, CU13, 2 node DAG cluster. Need to get to CU23 so I can apply the out of band patches. What is the best steps to get to CU23? Can I go right to it? I see there are some caveats with .net when you get to the last 3 CU.
Go straight to it:
First Prepare the Forest
Run Each required Step Separately:
https://learn.microsoft.com/en-us/exchange/prepare-active-directory-and-domains-exchange-2013-help
Then Apply .net 4.8
Then:
Apply CU23: