Originally Posted by Leffmann
Yeah, but SetPatch had to be installed with the Workbench so you could easily update it later, and there was just one SetPatch which knew how to fix bugs in all prior releases. The one that came with Workbench 3.1 mainly fixed bugs in Kickstart 3.0.
I don't have the archive myself, and I don't know what else is missing.
Believe it or not someone put all the code to github.