We have been doing EDI now for over 16 years. Over the years we have seen changes in the standards that reflect changing business needs. That's a good thing. Yet the adoption of new versions of the X12 standards has been slow. We still have the majority of retail trading partners using 4010, some have upgraded to 5010 and once in a while we come across those who are dinosaurs and live in the age of 3010 and younger. C'est la vie.