Microsoft Entra ID
SecurityUpgrade Previous Version
In brief
The required Microsoft Entra Connect Sync version increased from 2.5.79.0 to 2.6.84.0. Administrators must also configure application-based authentication by April 7, 2027.
What Entra admins need to know
Upgrade to version 2.6.84.0 or later and configure application-based authentication by the deadline to prevent synchronization services from stopping.
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Documentation change
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It's important that you keep your servers current with the latest releases of Microsoft Entra Connect. We are constantly making upgrades to Microsoft Entra Connect, and these upgrades include fixes to security issues and bugs, as well as serviceability, performance, and scalability improvements.
@@ -17,7 +17,7 @@ This topic describes the different methods that you can use to upgrade your Micr It's important that you keep your servers current with the latest releases of Microsoft Entra Connect. We are constantly making upgrades to Microsoft Entra Connect, and these upgrades include fixes to security issues and bugs, as well as serviceability, performance, and scalability improvements. >[!IMPORTANT]->**Mandatory upgrade required:** Upgrade Microsoft Entra Connect Sync to version 2.5.79.0 or later and configure application-based authentication by April 7, 2027. Legacy authentication is being retired, and synchronization services will stop working after this date if these requirements aren't met.+>**Mandatory upgrade required:** Upgrade Microsoft Entra Connect Sync to version 2.6.84.0 or later and configure application-based authentication by April 7, 2027. Legacy authentication is being retired, and synchronization services will stop working after this date if these requirements aren't met. > >If synchronization stops, upgrade to the latest version and configure application-based authentication to restore service. The Microsoft Entra Connect Sync .msi installation file is exclusively available on [Microsoft Entra Admin Center](https://entra.microsoft.com/#view/Microsoft_AAD_Connect_Provisioning/AADConnectMenuBlade/%7E/GetStarted). Make sure you meet the minimum requirements including .NET Framework 4.7.2 and TLS 1.2.