https://learn.microsoft.com/en-us/microsoft-identity-manager/microsoft-identity-manager-2016-upgrade-from-service-pack-2-to-service-pack-3
May 15, 2026 · Learn how to upgrade an existing MIM 2016 deployment from Service Pack 2 (SP2) to Service Pack 3 (SP3), including Sync Service, MIM Service, Portal on SharePoint SE