Addressed a long-standing issue where searching message tracking logs on high-volume servers would time out or cause excessive memory consumption.
CU12 improved the user experience for those utilizing hybrid environments with SharePoint Online and OneDrive for Business. This update enabled support for OneDrive shortcuts to appear in Outlook on the Web. This creates a more unified file management experience for users who store attachments and files in the cloud. microsoft exchange server 2019 cumulative update 12 download