Papyrus-RT release 0.9 addresses the behavioral aspect of UML-RT modeling, and also tackles a number of usability and functional deficiencies. It also provides a support for inheritance for both structural and behavioral aspects.
Details about the functionality provided as part of release 0.9 has is defined by a minimal viable product (MVP) that describes the focus of and required features required implemented in this release.
In addition to progressing toward the 1.0 release (currently defined as a combination of MVP1 and MVP2 and migration to Oxygen), the 0.9 release still develops the prototype capability for textual-graphical modeling. This prototype allows users to create models using a UML-RT textual syntax that converts that to a graphical model.
Finally, integration with collaborative modeling tool EMF Compare has made some progress, in order for the users in a team to understand and merge differences at UML-RT model level.