Saturn firmware

Sorry if this has been covered before but I searched and could not find the answer.

I've just had two wholesalers scratching around to get all my kit for a job as here in the UK getting cbus stuff on short lead time can be hard to impossible (hens teeth are easier to get) schneider don't hold much stock for some reason,

Anyway grumble over with the upshot is I've ended up with a range of different firmwares on the standard saturn's, I've got 1.6.00, 1.8.00 and 2.2.00.

The question is what changed on 1.6.00 to 1.8.00 and 1.8.00 to 2.2.00?

Any help would be appreciated

 

1.6.00 to 1.8.00 is only minor bug fixes. The change from 1.8.00 to 2.2.00 corresponds with hardware changes but no functionality changes.

 

Thanks Newman.