Simon:
Build 120 fixes a bug with the parts array (not being able set particles past a certain index), performance improvements when accessing parts array from Lua and access to the element transition config (tpt.eltransition.dust, etc) with the fields presHighValue, presHighType, presLowValue presLowType, tempHighValue, tempHighType, tempLowValue, tempLowType, these control state transtions and breaking.