Exchange Server 2016 Hybrid upgrade considerations
Exchange Server 2016, RTM as of October 2015, is still very much freshly baked having just come out of the oven from Redmond. Two recent projects that I’ve worked on have required me to consider deploying it as the “Hybrid” server (not an actual role- I’ll get to that later) for integration and coexistence with Office 365 Exchange Online.
With anything new there is a learning curve as to how the new product now works (not that dissimilar from previous versions of Exchange Server) and what will work with the existing environment to not compromise service.
There is an unwritten assumption that is made in our hybrid guidance that you have already properly deployed and completed the coexistence process with the current versions of Exchange in your on-premises environment.
– The Exchange Team