Defines the .NET runtime of the task. This must be specified if the task must run on a specific version of the .NET runtime. ...

Defines the .NET runtime of the task. This must be specified if the task must run on a specific version of the .NET runtime. If not specified, the task will run on the runtime being used by the build process. If there are multiple tasks defined in UsingTask with the same name but with different Runtime attribute values, the value of the Runtime attribute specified here will be used to match and select the correct task