Most RecentMost ViewedMost LikesReleased: October 2025 Exchange Server Security Updates We have released Security Updates for Exchange Server SE, Exchange Server 2019 and Exchange Server 2016. No Exchange Server Security Updates for November 2025 We are not releasing any Exchange Server Security Updates for November 2025 Announcing Exchange 2016 / 2019 Extended Security Update program We are announcing an optional 6-month Extended Security Update (ESU) program for Exchange 2016 and 2019. Upgrading your organization from current versions to Exchange Server SE We wanted to provide additional guidance and FAQ for preparing your organizations for Exchange Server SE release. Exchange Server Roadmap Update Today, we are providing an update on our product roadmap for Microsoft Exchange Server, and our next milestones in the Exchange Server journey. Dedicated Hybrid App: temporary enforcements, new HCW and possible hybrid functionality disruptions We are announcing enforcements to move customers along to using the dedicated hybrid app. Support for Exchange Server 2016 and Exchange Server 2019 ends today Support for Exchange Server 2016 and Exchange Server 2019 ends today. Released: August 2025 Exchange Server Security Updates We have released Security Updates for Exchange Server SE, Exchange Server 2019 and Exchange Server 2016. T-1 month: Exchange Server 2016 and Exchange Server 2019 End of Support Removing Your Last Exchange Server FAQ In April, we released an update to the Management tools in Exchange Server 2019 that enables organizations that use Azure AD Connect and sync their Active Directory to manage recipients without the need for a running Exchange Server.