[xsd-users] XSD 4.0 backward compatibility

[Marina Egorova]

Hello,



In our system we use XSD to convert our internal system messages, based on
proprietary XML schema, to/from XDR for effective transfer. Now we are
working towards upgrading from XSD version 3.3.0 to 4.* (where 4.0 is
preferable).



However, we are faced with the issue that messages encoded to XDR by
version 3.3.0 can not be read successfully by XSD 4.0.



Is backward compatibility expected in this case? Can something be done to
have backward compatibility?