Microsoft released Azure AD Connect 1.1.561.0 version yesterday (7/24/17) which include a few major fixes and some new features, mostly around the Auto Upgrade feature and its support.
Fixed an issue that caused the out-of-box synchronization rule “Out to AD – User ImmutableId” to be removed
Fixed an issue that causes out-of-box synchronization rules to have precedence value that is less than 100
Fixed an issue where the Domain and OU Filtering screen in the Azure AD Connect wizard is showing Sync all domains and OUs option as selected, even though OU-based filtering is enabled.
Fixed an issue that caused the Configure Directory Partitions screen in the Synchronization Service Manager to return an error if the Refresh button is clicked. The error message is “An error was encountered while refreshing domains: Unable to cast object of type ‘System.Collections.ArrayList’ to type ‘Microsoft.DirectoryServices.MetadirectoryServices.UI.PropertySheetBase.MaPropertyPages.PartitionObject.” The error occurs when new AD domain has been added to an existing AD forest and you are trying to update Azure AD Connect using the Refresh button.
New features and improvements
Automatic Upgrade feature has been expanded to support customers with the following configurations:
The scope expansion of the Automatic Upgrade feature affects customers with Azure AD Connect build 220.127.116.11 and after. If you do not want your Azure AD Connect server to be automatically upgraded, you must run following cmdlet on your Azure AD Connect server:
Set-ADSyncAutoUpgrade -AutoUpgradeState disabled.