Microsoft Entra Connect Sync version v2.5.190.0 enforces the use of Connector API v2.

What's Changed

Microsoft Entra Connect Sync version v2.5.190.0 enforces the use of the v2 AAD Connector API.

From Entra Connect Sync v2.5.190.0 onwards, using the previous V1 connector API is no longer supported.

What's New

Entra Connect Sync v2.5.190.0 offers four other improvements, with two pertaining to application-based authentication:

Application-based authentication with TPM is now compatible with MSAL

Microsoft addressed an issue where application-based authentication failed between the Trusted Platform Module (TPM) and the Microsoft Authentication Library (MSAL). The fix ensures compatibility with MSAL's default signing method.

Application-based authentication certificate renewal threshold set to 30 days

The certificate renewal threshold for Application-based Authentication has been updated to 30 days. Entra-managed certificates will now automatically renew when their expiration date is 30 days or less.

Other status no longer blocks Entra Connect Sync configuration

Microsoft addressed an issue in the configuration wizard that resulted in the following error when the status for Entra Connect Sync in the Entra admin center is defined as Other:

Directory synchronization for this directory currently has a mismatch in sync enabled and sync status

Cloud management of Exchange attributes no longer triggers export errors

Microsoft addressed an issue with cloud management of Exchange attributes that raised export errors labelled ExchangeManagedAttributesUpdateNotAllowed.

Version information

Version 2.5.190.0 of Entra Connect Sync (previously known as Azure AD Connect Sync) was made available for download on November 19th, 2025.

Admins can download the latest version of Entra Connect Sync from the Entra admin center.

Superseded versions

Past versions of Microsoft Entra Connect Sync 2.x are retired 12 months from the date they are superseded by a newer version. With the release of Entra Connect Sync v2.5.190.0, support for Entra Connect Sync version 2.5.79.0 stops on October 23rd, 2026.

Support for Entra Connect Sync v2.4.21.0 and earlier versions of Entra Connect Sync has already stopped.

If you run a retired version of Microsoft Entra Connect, it might unexpectedly stop working.