The purpose of this note is to make several announcements related to
Chez Scheme. I have excluded any hype and gathered the notices
together in one place so that those who are not interested can simply
kill one note rather than several.
First, Chez Scheme Version 6 has been released. Some of the new
features of Version 6 include full R5RS support, modules, record
datatypes, improved performance via two new source-optimization passes,
foreign interface enhancements, edge-count profiling, and complete
on-line documentation. The on-line documentation consists of HTML
versions of The Scheme Programming Language, second edition, and the
new Chez Scheme User's Guide.
Second, Petite Chez Scheme has been released. Petite Chez Scheme is a
freely distributable interpreted version of Chez Scheme intended for
use as a distribution vehicle for compiled Chez Scheme applications.
It also serves as a stand-alone personal version of Chez Scheme.
Programs written for Chez Scheme run unchanged in Petite Chez Scheme,
as long as they do not depend specifically on the compiler.
Third, a beta version of the free Scheme Widget Library has been
released. The Scheme Widget Library is a windowing and graphics system
for Scheme developed at Indiana University. It is based on Tcl/Tk and
provides an object-oriented graphics/windowing library, REPL, simple
editor, and various other tools.
For details on Version 6, to download Petite Chez Scheme or SWL, or to
view the on-line documentation, please visit the new Chez Scheme web
site at http://www.scheme.com.
Kent Dybvig
Cadence Research Systems