Hello all, my development team is about to start a new software implementation in IDL. The implementation will consist mainly on a object oriented XML parser procedure and a log system. It is also needed that the IDL procedures can be invoked through the "Callable IDL" interface as it is going to be integrated in a C++ library. The question is the following , Are there any potential problems related to the compatibility between versions ? My company have already a 6.0 development license but we are thinking about purchasing 7.1 or waiting for the 8.0 scheduled for July. Thanks in advance.