Jamup
back in the day Bob Tait was the go to for IREX study material. The recent changes are being thrown out by CASA at a rate that any theory publisher would struggle to keep up. For instance, it was only a recent alteration by CASA to remove the requirement for AZI to be tested after the decommissioning of all those ground based aids. We're talking weeks not months. So I would imagine that no book authors have yet been able to include this, or other recent amendments, and exemptions in their latest version of their IREX books. But then again, what do you think the chances are that the exam system itself has been updated to ask questions related to these changes?
At best, some diligent and proactive person may have realised that they should remove old and now outdated questions from the exam system so at least they aren't asking defunct questions. Don't hold your breath thought ...because you should use it to actually call CASA and ask them to be sure.
to be sure to be sure
Bort