Both introduced generation-time concepts have described in this article.
Default methods support in BaseLanguage
Behavior methods overridden/implemented icons
The behavior popups with the overridden/implemented methods became asynchronous, which means that the popup is showed and then filled. Also the filtering by the name of search objects is available now.
Concept overridden/implemented icons
MPS marks concepts with an overridden/implemented icons, allowing user to navigate to the superconcept or subconcept of the current concept.