[regrep] Backward Compatibility of OASIS ebXML Registry V2.0

Hello All,

I'd like to ask that the OASIS ebXML Registry V2.0 is backward compatible with V1.0 or not.

There are already many implementations of ebXML Registry V1.0. 

I think it is required to guarantee the backward compatibility in order to save their investments.

--
Regards,
K.C.