Taken from ATARI.ORG
Jaguar Development Kit 1.991
By Jan Daldrup on 1999-06-21At E3 Hasbro announced that new Jaguar games can now be freely released and if you want to make profit out of this decision you probably want to make your own killer game for the Jag. But before you can do so you have to download the latest version of the Jaguar Development Kit 1.991 (TOS/MiNT/MagiC) by Laurent Favard.
Download from :
ftp://ftp.lip6.fr/pub5/atari/Jaguar/jdk1991.zip