(Non-normative) The following topics outline the changes from earlier versions of DITA
to the current version.
B.1.1 Changes from DITA 1.1 to DITA 1.2
(Non-normative) DITA 1.2 adds a number of new features to DITA, including indirect addressing via map-defined keys; the ability to define content-model constraints for DITA document types; specializations for learning content and the machine industry; and taxonomies, ontologies, and controlled vocabularies. Other refinements include extended markup for glossaries and terminology.