In version 3, we have noticed the introduction of the literal "dcat:version". In our case, datasets & dataset records are assembled by multiple parties / sources with various versioning schemes, nomenclature and standards. We see the need to discriminate these different schemes with an additional term such as "versionScheme".
Comment submitted by Martin East in https://lists.w3.org/Archives/Public/public-dxwg-comments/2022Feb/0000.html