• Great community contribution for collapsed sub processes by David Pardo. You now can model processes in a hierarchical way without needing to use call activities, which result in different process definitions in the Flowable Engine. When using collapsed sub processes, the modeling part is hierarchical and using different model diagrams for the main process and the sub process models. But when deploying on the Flowable Engine, there's still one process definition using embedded sub processes.
  So this feature it targeted at the modeling level.
• Bug fix for service tasks with class attributes using skip expressions.
• Added support for using the Flowable namespace in addition to the Activiti namespace in BPMN XML.
• Several bug fixes and smaller enhancements.