Whose brilliant idea was to have two firmware version #s? We started with the 1.X.Y series and than at some point in their wisdom Model S software team added 4.X to the mix. Now to top it off we even have non 1-to-1 mappings (e.g. 4.1 is 1.19.27 and 1.19.29). Why all the confusion? What was wrong with the good old basic software version designation (Release.Major.Minor) they started out with?