Очередной набор кумулятивных апдейтов для Microsoft Exchange 2013 и 2016.
Exchange 2016 CU9 - https://support.microsoft.com/en-us/help/4055222/cumulative-update-9-for-exchange-server-2016
Exchange 2013 CU20 - https://support.microsoft.com/en-us/help/4055221/cumulative-update-20-for-exchange-server-2013
