The Exchange Team has gone nostalgic and removed the dust of the “Hotfix” moniker.
A Hotfix Update is an optional update which doesn’t contain any new security fixes but does contain high priority fixes for one or more issues (usually introduced with the latest Security Update). In this case, it even includes 2 new features as well.
- Support for ECC certificates
ECC certificates are now supported, except when used in Active Directory Federation Services (AD FS) scenarios. - Hybrid Modern Authentication (HMA) for OWA/ECP
This feature requires Exchange 2019 CU14. To enable see; Enable Hybrid Modern Authentication for OWA and ECP.
The following issues introduced in the March 2024 SU are now fixed;
- Download domains not working after installing the March 2024 SU
- “We can’t open this document” error in OWA after installing March 2024 SU
- Search error in Outlook cached mode after installing March 2024 SU
- OwaDeepTestProbe and EacBackEndLogonProbe fail after installing March 2024 SU
- Edit permissions option in the ECP can’t be edited
- Outlook doesn’t display unread envelope icon after installing Microsoft Exchange Server March 2024 SU
- Note: the fix resolves this issue for new messages, after April 2024 HU or later is installed.
- My Templates add-in isn’t working after installing Microsoft Exchange Server March 2024 SU
- Published calendars might not work with a “This calendar isn’t available” error after installing March 2024 SU
The remaining issue introduced in the March 2024 SU will be fixed in a future update;
- Calendar printing in OWA might not work unless CTRL+P keyboard shortcut is used.
View: Exchange Blog: Released: April 2024 Exchange Server Hotfix Updates
View: Hotfix update for Exchange Server 2019 and 2016: April 23, 2024 (KB5037224)
Exchange 2019 CU14 HU2 – Download
Exchange 2019 CU13 HU6 – Download
Exchange 2016 CU23 SU12 – Download
