Hello
I have an exchange server 2016 15.01.0544.030, how can I upgrade to 19 CU or 18 CU when I try to upgrade, writes can not perform this upgrade because it is not supported. maybe I should run previous upgrades and try to upgrade to 19 CU or 18 CU? I need todo this upgrade becous is risk "HAFNIUM targeting Exchange Servers with 0-day exploits".
Thanks.
Kristina
