The Studio DITA filter allows us to integrate a DTD for validation purposes. That DTD is a snapshot of the DTD at the time the Studio filter is configured. DTD updates, however infrequent they may be, need to be replicated in the filter settings. Tridion Docs provides a web application that can be used by anyone to validate content using the DTD hosted in Tridion Docs. Could the Studio filter be enhanced to allow users to point to that web application?