Assume that you enable Always On Availability Groups in Microsoft SQL Server 2016 and 2017 on Windows Server Failover Cluster (WSFC) node with Cloud Witness quorum. In Dynamic Management View (DMV), sys.dm_hadr_cluster reports cloud witness quorum as type "4" and quorum_type_desc as "UNKNOWN_QUORUM".


This update is included in the following cumulative updates for SQL Server:

About cumulative updates for SQL Server:

Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:


Learn about the terminology that Microsoft uses to describe software updates.

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