Scheme 48 is an implementation of Scheme written by Richard Kelsey and Jonathan Rees. It is based on a byte-code interpreter and is designed to be used as a testbed for experiments in implementation techniques and as an expository tool.
The current version of Scheme 48 is 1.9.2 (released April 2014).
- 1.9.2 release notes
- 1.9.2 source distribution
- 1.9 Windows distribution
- 1.9.2 manual (html)
- 1.9.2 manual (pdf)
- 1.9.2 manual (gzipped PostScript)
Kali is a distributed version of Scheme built on top of Scheme 48.
Instructions for getting the current development sources and building them are here.
Scsh (SCheme SHell) is a scripting and systems programming environment built on top of Scheme 48 and POSIX.
If you have questions about Scheme 48, please feel free to contact us at s48-info at s48 dot org.