The 2022 H1 update (CU12) focused on modernizing hybrid environments and expanding operating system compatibility:
: This was the first update to officially support installing Exchange Server 2019 on Windows Server 2022 . It also added support for Windows Server 2022 Active Directory domain controllers. The 2022 H1 update (CU12) focused on modernizing
Microsoft Exchange Server 2019 Cumulative Update 12 (CU12), released in April 2022, is a major servicing update that introduced critical platform support and licensing changes. Notably, searches for "cracks" or unauthorized activation keys often lead to security risks; legitimate product keys should be obtained through official channels like the Microsoft Volume Licensing Service Center (VLSC) . released in April 2022
: Microsoft updated its licensing terms to provide a product key for Exchange 2019 hybrid servers at no additional charge. This allows organizations to maintain an on-premises server for management purposes without extra cost, provided no user mailboxes are hosted on it. The 2022 H1 update (CU12) focused on modernizing