Version 4.1 has a renewed version of SmartUpdate. A column has been added to the SmartUpdate table and the procedure has extra parameters. This causes SmartUpdate to be incompatible with older versions. If you wish to use the new version, remove the old table and procedure and create them anew.
Version 4.0 is not (fully) compatible with previous version. Relation markup has changed and Related Field Aliases have been introduced. The information is stored in (XML) config files which look quite differently in the new version. There is no automatic conversion from old versioned config files to new ones.
If you send your config files to us with the request to convert them to the latest version, we are happy to oblige. This service is free for licensed customers.
Future versions will be compatible with config files from version 4.0 or higher. We recommend switching to version 4 as soon as possible.