Are the extensions compatible with Aspire 9?

[Kralizek]

I don't know much on the breaking changes in Aspire 9.

I know it supports WaitFor natively, but how about the other extensions. I'm especially interested in the YARP extesion.

[Kralizek]

@davidfowl @DamianEdwards

I'm in the process of upgrading to Aspire 9. I wonder if you had on top of your head the answer to the compatibility of the YARP resource with the new version before I found it out the hard way. :D