This directory holds any special "boot" files needed to get from some deltato the next. The directory src/bootfiles/18c holds files generated post 18crelease.The files will be named boot1.lisp, boot2.lisp, ..., bootz.lisp. Each fileshould have some commentary as to the particulars about the file. It ishoped, but not guaranteed, that one could load all files into a fresh 18cor nearly current environment and be able to compile current sources.