MX400 Version: 1.00 Initial Release Version: 1.1 Fix for Effect select not correct after GUI change. Fix for possible flash consolidation problem. Took out space in "80 Hz" display for LPF and HPF in stereo delay effect. Fix for spin and wander panning. Fix for spring reverb in engine 2 dual stereo mode passing dry audio when set to all wet. Fix for orignal value markers displaying incorrectly when changing routing and effect index is the same. Version: 1.2 Fix for Pitch dry attenuation in routing 5 Dual Stereo and Stereo modes. Another Fix for Effect select not correct after GUI change. Exits Gui mode if USB cable disconnected. Fix for Dual Stereo program B not updating the midi bank correctly. Fix for USB String Length. Reduced Processing of duplicate parameter messages.