http://www.simplify3d.com/changelog/
Version 2.0.1
Better error handling for USB upload of poorly formatted G-Code files
Added option for reduced support structure printing speeds
Better retraction movements for complex support structures
Improved behavior for retraction between layers
Verified that correct toolhead is always selected after USB connection is established
Better support for pausing builds mid-print and performing manual actions
Added new options to configure endstop homing directions
Improved temperature auto-configuring so that disabled heaters will always remain turned off
More reasonable limits for extrusion multiplier inputs
Corrected some rare previewer prompts for special case scenarios
Fix for manually turning off secondary extruder when using multiple toolheads
Fix for manually moving multiple models together using the Shift key
Fixed issue where program would close immediately after successful activation on some operating systems
Miscellaneous profile updates