They specifically used names with minor revisions or tweaks in some of those cases to discourage folks from thinking to recertify the whole vehicle. 1.1 for exa

They specifically used names with minor revisions or tweaks in some of those cases to discourage folks from thinking to recertify the whole vehicle. 1.1 for example was basically an entire new vehicle - physically bigger and revamped avionics throughout. No customer wants to be the first to put their three hundred million dollar satellite on an untried platform, but a 0.1 difference? Meh, that’s practically the same thing!