Microsoft said on May 12, 2026, that it will not release Exchange Server security updates this month for Exchange Server Subscription Edition or for Exchange Server 2016 and 2019 customers enrolled in Extended Security Updates. That makes May a quiet Patch Tuesday for on-premises Exchange, but...
Although Microsoft’s Exchange Server security-update cadence has been unusually quiet in the months after Exchange 2016 and Exchange 2019 reached end of support, April 2026 is different for one important reason: it is the final month of the temporary Extended Security Update program, and...
The release of Exchange Server Subscription Edition (SE) marks a pivotal moment for Microsoft’s enterprise email infrastructure, moving decisively into a new era characterized by a subscription-centric, cloud-aligned approach even for on-premises scenarios. Enterprises that have depended on...
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