Below is the firmware revision history for the Copperhead ECU.  

Date:  October 14, 2016
Revision: 6.3f
1)  Updated low elevation mapping.

Date:  January 24, 2015
Revision: 6.3f
1)  Fixed issue where misfires could occur under special conditions.  

Date:  July 9, 2014
Revision: 6.3e - 2014+ KQ750 only
1)  Updated fuel mapping.

Date:  April 28, 2014
Revision: 6.3d - 2014+ KQ750 only
1)  Updated fuel mapping.

Date:  March 29, 2014
Revision: 6.3a
1)  Fixed issue if the engine stalled during a start, and the coolant temperature was colder than 40C, 
	the ISC valve didn't properly reset. 

Date:  August 21, 2013
Revision: 6.3
1)  Fixed issue where update via Memory Pod may result in poor operation. 

Date:  July 1, 2013
Revision: 6.2
1)  Changed Battery clip storage method.  
2)  Improved MAP read for better throttle response and operation. 
3)  Fixed glitch filter that was causing starting issues on some machines.
4)  Fixed calibration issue.  

Date:  May 15, 2013
Revision: 6.1d
1) Filter off first battery reading for better starts/operation.

Date:  May 8, 2013
Revision: 6.1c
1) Added self-reseting battery error indicator.

Date:  May 6, 2013
Revision: 6.1b
1) Fixed map switch wasn't read properly on startup in version 6.x.  
2) Fix timing error on spark duration.  
3) Addressed timing issue that could result in bad battery reading.

Date:  April 29, 2013
Revision: 6.1a
1) Fixed battery reading issue.  
2) Fixed MAP read sync.

Date:  April 12, 2013
Revision: 6.1
1) Fixed starting to running fuel transition that could cause rich idling/stalling after start.

Date:  April 9, 2013
Revision: 6.0d
1) Fixed EFI sensor timing during non-running. 

Date:  March 18, 2013
Revision: 6.0c
1) Fixed EFI sensor read during non-running.  

Date:  March 2, 2013
Revision: 6.0b
1) Added TPS adjustment support for Live Tuner. 

Date:  January 27, 2013
Revision: 6.0a
1) Fixed ISC calibration issue.  

Date:  January 5, 2013
Revision: 6.0
1) Added Live Tuner support.  


Date:  October 11, 2011
Revision: 5.5
1) Changed the map loading indication to flash the status light until the map has completed loading, and then switch 
	to solid status light to eliminate confusion about map loading.
2) Changed Afterstart Cycle Hold to prevent engine from starting until the entered number of rotations occur.
	Used for machines that tend to be hard (rich) starting (IE M109R).


Date:  May 27, 2010
Revision: 5.4d
1) Increased high temperature threshold to prevent false hot indications.


Date:  May 19, 2010
Revision: 5.4c
1) Increased the transition rate from start to run fuel to prevent warm start stalls.


Date:  March 31, 2010
Revision: 5.4a
1) Fixed bug in real time clock that could cause stalling on second boundaries.


Date:  March 30, 2010
Revision: 5.4
1) Changed the EEPROM loaded to a quick status light flash.
2) Changed the transition from start to run fuel to prevent start/stall issues.     
3) Fixed bug where flood clear threshold was loaded in /10 which was causing the injector not to fire when cranking on some machines. 
4) Fixed bug where afterstart enrichment wasn't applying properly required an artificially large cycles in the map.