From notes:
Version 3.1.2 introduces numerous enhancements.
Enhanced scripting support
Improved streaming with looped samples
Minor user interface enhancements
Improved handling of MachFive 1 presets
Improved handling of keygroup velocity/key fades
Better compatibility with MagicMouse and Trackpad
Added Gain Matrix automation support
Improved handling of tuning stored in samples
Added minor enhancements to the wave editor
Improved performance with layer rules
Added support for the FLAC format