A: No, we are not extending the end-of-life date for Exchange 2016 or Exchange 2019, and we are not offering extended support or ESU for either version. Our efforts are focused on ensuring that the Exchange Server SE release, as well as the in-place upgrade experience, is seamless for customers running Exchange 2019. We strongly recommend all Exchange 2016 customers who want to remain on-premises to upgrade to Exchange 2019 as soon as possible.