CORBA26 — Is GIOP 1.x sustainable any more?

Is GIOP 1.x really sustainable any more?
We've got implementation nightmares because:

• Features haven't been thought through properly
  eg Fragment in 1.1, BiDir in 1.2

• Simple backwards compatibility is being lost
  eg ReplyHeader v1.2 has fields in completely different places to
  previous versions, albeit for very good reasons.

• The TypeCode CDR version problems

• Not enough information in certain messages
  eg MessageError can't indicate which message may have caused a
  problem, and certainly can't describe in what way there was an error.

see above