Updating an Exchange Server (its non internet facing hence doing it now)
Exchange 2013 CU6 (hadnt been done since 2014)
Its a mailbox only server in a hybrid 365 environment, there is no DAG etc
Do i still need to put Exchange server into maintence mode or can I just update .Net Framework 4.7.2 and install CU23?
Thanks, links appreciated with answers as well :)