Possibly also worth pointing out that CC2014.2 reads ProRes4444XQ fine.
Notably also does not display the gamma shift in the ProRes that CS6 and CS2014.1 does.
Eg, when comparing to a uncompressed 10bit source (YUV v210) ProRes (any flavour) is always darker when viewed in pre2014.2 AE. QT displays without the gamma shift.
2014.2 now, finally, displays ProRes that's (almost) visually identical the original source. But, won,t export. So a win and fail there.