The CONNX CDD has been converted to a new format in order to increase performance levels. If you are currently running a version of CONNX that is earlier than 10, you may find that you need to convert your CDDs to the new format (created in and added to version 9.0) for consistency and security.
Open the CONNX
Data Dictionary Manager. Select a CDD,
then under File, click Save.
Should a situation arise when you might not wish to change your CDD format,
create a backup copy of your production CDD, and then create a copy that
can be used by CONNX. For identification purposes, the file extension
on converted CONNX CDDs is .vn9.