That is not true. There is kickstart 3.5 and 3.9 it is even mentioned on AmigaKit. it is customized and made by a person of course and then burn the kickstart 3.5 or 3.9 on a physical writeable ROM chip to be replaced with kickstart 3.1. I just want to know if someone out there actually have these customized ROM for sale because I would like to upgrade my Amiga 1200 to kicstart 3.9. It would be super cool to have that.