There is a hole a the moment. We test Narayana when it is integrated into the nightly WildFly but we don't retest when WildFly is released. For example M4 is in Beta1 but we haven't retested the QS with that released version.
We should have a CI job that tests the final version of WildFly.
Maybe the QS release job should be tracking the WildFly branch and retesting when changes are added there.