Most RecentMost LikesMost ViewedUpdate Your Exchange SE Hybrid On-premises Rich Coexistence to Graph Configure Exchange Server SE to move your Hybrid rich coexistence scenarios to Graph API calls. Released: May 2026 Exchange Server Hotfix Update We have released a Hotfix Update for Exchange Server SE. No Exchange Server Security Updates for April 2026 We are not releasing any Exchange Server Security Updates for April 2026. Exchange Server Subscription Edition (SE) is now available We are excited to announce the general availability of Exchange Server Subscription Edition (SE). 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. No Exchange Server Security Updates for March 2026 We are not releasing any Exchange Server Security Updates for March 2026. Released: February 2026 Exchange Server Security Updates We have released Security Updates for Exchange Server SE. Exchange Server 2019 and 2016 ESU updates only. Released: September 2025 Exchange Server Hotfix Updates We have released Hotfix Updates for Exchange Server Subscription Edition (SE), 2019 and 2016. Released: October 2025 Exchange Server Security Updates We have released Security Updates for Exchange Server SE, Exchange Server 2019 and Exchange Server 2016. Retirement Date for Office Online Server (OOS) has been Announced Office Online Server retirement date has been Announced.
