This update for Azure Stack version 1904 includes fixes and reliability improvements. No new features are being introduced in this update.

Important changes include the following:

  • Fixed issue: Compute host agent warning appears after restarting a node in the scale unit.

  • Fixed issue: Infrastructure backup fails to back up internal identity service. 

  • Improved reliability of Update Resource provider automatic downloader.


  • Compute host agent: Warning appears after restarting a node in the scale unit.

  • Identity service backup: Infrastructure backup finishes but is only partially successful because it does not back up the internal identity service.


  • Compute host agent: Restarting the node changes the default startup setting for the compute host agent service.

  • Identity service backup: There is a bug in the backup workflow.

Hotfix information

To apply this hotfix, you must have version 1.1904.0.36 installed.

Important As outlined in the Release Notes for the 1904 update, make sure that you refer to the update activity checklist on running Test-AzureStack (with specified parameters), and resolve any operational issues that are found, including all warnings and failures. Also, review active alerts and resolve any that require action.

File information

How to get this update

Download the following files. Then, follow the instructions on the Apply updates in Azure Stack page on the Microsoft Docs website to apply this update to Azure Stack.

Download the file now.

Download the hotfix .xml file now.

More information

Azure Stack update resources

Manage updates in Azure Stack overview

Apply updates in Azure Stack

Monitor updates in Azure Stack by using the privileged endpoint

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