Editing JiffyDOS Kernal Upgrade (section)

== Licensing ==

'''JiffyDOS is not abandonware.''' Mark Fellows wrote the ROM replacement and joined forces with Creative Micro Designs to market and sell it; when CMD left the Commodore market the rights stayed with Fellows, who set up a royalty agreement with the firm that bought the remaining CMD stock.<ref name="ri">RETRO Innovations, ''JiffyDOS'' product page — https://www.go4retro.com/products/jiffydos/ . Source for the licensing history (Mark Fellows wrote the ROM replacement and joined with Creative Micro Designs to market it; the rights stayed with Fellows when CMD left the Commodore market), for the current list of authorised sales channels, and for the list of published installation guides.</ref>

'''RETRO Innovations does not hold an exclusive licence.''' As of the current RETRO Innovations product page the authorised sales channels are:<ref name="ri" />

* Restore Store — replacement ROM overlays, specialising in country-specific variants
* Coprolite Computer By-Products — "switchless" ROM overlays
* Custom Commodores — replacement ROM overlays
* RETRO Innovations — replacement ROM overlays and images

Each licensee runs its own product line. Buying from one of these keeps licensed copies available; no other distributor is currently licensed.<ref name="ri" />