Version 3.5.0 (October 2015)- Textual editor
  - Extended POOSL help within the IDE
- Debugging framework
  - Process window with a separate Execution Tree and Variable view
  - StackTrace window when an error occurs during debugging
  - Improvements to the rotalumis execution engine (see also http://www.es.ele.tue.nl/poosl/Tools/rotalumis/)
    - Improved stability of the Socket data class
    - Improved stability of guards
- Graphical editor
  - Class diagram filters to include/exclude basic and imported classes
- Libraries
  - New trace.poosl library for visualizing Gantt charts and design-spaces using TRACE (http://trace.esi.nl/)
  - Improved Gamma distribution in distributions.poosl library
  - Updated examples project at http://poosl.esi.nl/documentation/