- Optenni history: 2013-2015
- April 2013 (version 2.0): simultaneous multiport matching, microstrip lines, multicore optimization
- October 2013 (version 2.1): link with FEKO
- July 2014 (version 3.0): link to network analyzers, optimization of tunable matching circuits, automatic optimization inside CST parameter sweeps
- April 2015 (version 3.1): two-way link with ANSYS Electronics Desktop
- October 2015 (version 3.2): user-defined frequency bands