Do you presagis have on your site the differences between CDB 2.1 and CDB 3.0?

Thanks

The information can be found in the CDB 3.0 Specification document.

The first section of the document is the "Summary of Changes" and it includes all of the modification/change between CDB 1.0 up to 3.0, including all of the changes between CDB 2.1 to 3.0.

The Official CDB 3.0 Specification can be found on the Presagis web site:

http://www.presagis.com/products/standards/cdb/more/download_the_cdb_specification/