With each catalog update an additional entry is added in the link database for each entry (material number).

You can recognize old part versions in the PARTlinkManager in the PSOL Project column by the version number in the project path. There are also several lines subID [Line sub ID] for the same line ID [Line ID] in a project.

Clicking on the button you can hide old part versions (marked with ".v").

Using the following filter in the PSOL Project column has the same effect.

%NOT% *.v*