Forum Discussion

Alan2021

Copper Contributor

Jul 18, 2023

Upgrade exchange 2016 DAG to 2019

My company has exchange 2016 DAG running on several Windows server 2012R2 servers. Since Windows server 2012R2 will be out of support, I plan to upgrade to exchange 2019 DAG running on Windows server...

Exchange Server

kevkelly

MCT

Jul 18, 2023

Alan2021

You should always run all DAG members on the same version of Exchange server (including cumulative and security updates)

https://learn.microsoft.com/en-us/exchange/high-availability/manage-ha/manage-dags?view=exchserver-2019#installing-updates-on-dag-members

You may also find the Exchange Deployment Assistant a useful resource