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Curious if and how Microsoft’s monthly security updates will impact your server applications? We have got you covered! With Test Base for Microsoft 365, you can now validate your applications against Windows Server 2016 and 2019, including Server Core!


Software vendors and test engineers: you spoke, we listened. Prior to now, Test Base users could only validate their applications against upcoming security updates for Windows 10 client operating systems. However, understanding the importance of servers in the software application ecosystem and the essential role they play in this space, we are empowering you to achieve more on our platform.


Simply upload your applications to the Test Base server on Azure, then select that you’d like your apps to be validated against pre-release monthly security updates for Windows Server 2019 and/or Windows Server 2016, including the Server Core edition.


Not sure how to get started? Check out the step-by-step guide below to find out how to use this new feature.


Not yet using Test Base for Microsoft 365? Complete our short sign-up form to join the private preview.


Upload an application for testing against Windows Server 2016 and Windows Server 2019


To get started with validating your applications against pre-release updates for Windows Server 2016 and 2019 operating systems on Test Base for Microsoft 365, log on to our self-service onboarding portal. From the left-side navigation menu, select Upload new package under Package catalog and fill out the Test details.



  1. Select Security updates as the OS update type:

    Selecting the OS update type in Test Base for Microsoft 365Selecting the OS update type in Test Base for Microsoft 365








    Note: We do not support feature update testing for Windows Server at this time.




  2. Under OS versions to test, select the applicable OS versions. You can select Windows Server OS versions or a combination of server and client OS versions.

    Selecting the OS version against which you want to test your applications in Test Base for Microsoft 365Selecting the OS version against which you want to test your applications in Test Base for Microsoft 365








    Note: If you select to test your application against both server and client operating systems, please make sure that the app is compatible and can run seamlessly on both.




  3. Provide other required information, review the details provided, and upload your application package. After uploading, you can view package status on the Manage packages menu tab.

  4. To view test results and insights from the validation of your application against pre-release security updates for Windows Server 2016 and 2019, go to the Test summary page or the Security update results page.

    Where to find security update test results in Test Base for Microsoft 365Where to find security update test results in Test Base for Microsoft 365


As we continue to innovate and build our service to meet all your application testing requirements, we look forward to hearing your comments and feedback on this new feature!


You can also email us at testbasepreview@microsoft.com.

Brought to you by Dr. Ware, Microsoft Office 365 Silver Partner, Charleston SC.