Microsoft has released Hotfix Updates (HUs) that enable support for new functionality and address issues in the March 2024 Security Update (SU).
The April 2024 HU is available for the following bui...
Updated May 06, 2024
Version 4.0
Blog Post
LukasSMSFT
Microsoft
Microsoftdubilava1655 make sure to update all of them to the latest version. Exchange Server 2016 CU20 is very old and we've made many changes with the latest version (CU23 + April 2024 HU) compared to CU20.
srfndoc Global_Helpdesk I can confirm that the issue with the piped cmdlet still exists in the latest update (April 2024 HU). We've updated the documentation (updated version will become available within the next few hours) to reflect this issue (https://learn.microsoft.com/en-us/exchange/plan-and-deploy/post-installation-tasks/security-best-practices/exchange-serialization-payload-sign?view=exchserver-2019#exchange-server-2016-cu23--2019-cu13-or-cu14--march-2024-or-later-su--hu).
The ECC certificate POP/IMAP issue is still under investigation.