### Version 4.1.3
* Improved support for Delta, SCARA, COREXY & COREXZ kinematics.
* Improved stepper timer for high velocity driver and not.
* Add calibrate surface width DELTA.
* Improved serial comunication width most popular Host.
* Add Acceleration retraction for extruder.
* Add EJerk for extruder.
* Remove limit for virtual extruder to 4. Now width MKR4 or NPr2 is possible have infinite extruder…
* Add M92 T* E (Set step per unit for any extruder).
* Add M203 T* E (Set max feedrate for any extruder).
* Add M204 T* R (Set acc retraction for any extruder).
* Add M205 T* E (Set E Jerk for any extruder).
* Add Slot for G60 & G61.
* G60 Save current position coordinates (all axes, for active extruder). S – specifies memory slot # (0-based) to save into (default 0).
* G61 Apply/restore saved coordinates to the active extruder. X Y Z E – Value to add at stored coordinates. F – Set Feedrate. S – specifies memory slot # (0-based) to save into (default 0).