Hi PaDu,
Our Typemock task in Azure DevOps has backwards compatibility with older versions of Typemock Isolator.
This means that running the latest version of the Typemock task with Isolator version 9.1.1, installed in your agent, should work with no issues.
Have you tried it and encountered any problems? If so, what is the issue? If not, please try and let us know about the output.
Best,
Tom Milchman
Typemock Support Specialist