Yes, and to my belief so did MOS 1.x and MOS 2.x
MOS 3.x is decided to be free giveaway to existing users, which is nice.
Maybe Hyperion shoud learn from that. New users would anyway get OS 4.2 / MOS 3
Morphos 1.x was free, so for 3 versions (including the upcoming 3.x) you only have to pay once, not three times.