I noticed the GSU doing some updating when I first switched on and I saw it saying V10.1.

I have to be honest and say I didn't see what the version was with the original ECU. May have been V10.0 - can't say 100%. Sorry.

BUT, irrespective of that, you'll know immediately if you have the old ECU LOL. They should then simply swap it for you.

I'm sure JetCat dealers will be able to offer a little more clarity in the next few days to those purchasing engines.

Rgds,
Mark