Microsoft kicks off 2024 with a uneventful Patch Tuesday, maintaining the trend from December by not releasing any patches for Exchange Server 2019.

Exchange Server 2019: CU14 Delayed to Jan 2024

There are still two more CUs for Exchange Server 2019: CU14 and CU15.  CU14 is in its final stages of testing and validation and will be released as soon as that’s finished. CU15 will be released later this year.

Exchange Server 2019 has left mainstream support and entered the extended support phase. It will continue receiving security updates through October 2025.

Admins should prioritize patching their Exchange Servers with the November SUs if they have not already done so.