Simon 0.4.0 for speech recognition brings a whole new recognition layer, context-awareness for improved accuracy and performance, a dialog system, and much more. The main user-interface of Simon has also been reworked for improved usability.
Other changes include Simon 0.4.0 integrating the CMU SPHINX speech recognition tool-kit, Voxforge is being used for high-quality English speech models, a KDE Plasma Workspace "Simonoid", and much more. Full details on Simon 0.4.0 are available from the release announcement. Embedded below is a video on the Simon 0.4.0 release.