I have been testing the latest iTunes update (11.4) and it seems to be
working fine. Initially I was concerned that it had caused my RMBP to
grind to a halt and require a re-boot, but this did not repeat on my Mac
Mini so I am thinking that was an unrelated issue. It has been working
fine on both Macs since then.
It looks like BitPerfect users can install it with confidence.
