SISC 1.9.8 Released

8/2/2005: SISC 1.9.8 Released

New in this Release
-------------------

This is a maintenance release for the 1.9.x series of SISC.  It contains
several bug fixes.

* Fixed a bug in SRFI 27 which was causing the secure-random-source
  to be deterministic.
* Fixed a rare closure capture bug which could corrupt continuations.
  (#1181453)
* Updated SRFI 42, fixing a bug in :while.
* Fixed some missing exports in SRFI 35.
* Fixed a garbage leak in closure which could result in
  unnecessary values occupying the stack, leading to serialization 
  problems.
* Fixed vector-fill! arity bug (#1195709)
* Fixed list-ref error handling bug (#1210879)
* Fixed a bug in require-extension for SISC specific libraries.
* Fixed a bug in SRFI 19's date->julian-day function (bug still
  exists in the reference implementation.  #1238375)

About SISC
----------

SISC is an extensible heap-based interpreter of Scheme running on
the Java VM, with an aggressively optimized, lightweight (<200k)
Scheme engine.  SISC outperforms all existing Java
interpreters (often by more than an order of magnitude).

In addition, SISC is a complete implementation of the language.
The entire R5RS Scheme standard is supported, without exception.  
This includes a full number tower including complex number support,
arbitrary precision integers and floating point numbers, as well as
hygienic R5RS macros, proper tail recursion, and first-class
continuations (not just the escaping continuations as in many
limited Scheme systems).  SISC also attempts to implement the
standard as correctly as possible, while still providing
exceptional performance.

Finally, SISC provides many useful real-world extensions, such as
networking, threading, elegant exception handling, generic
procedures, an object system, SLIB and comprehensive SRFI support, a
scope-friendly module system, a Scheme and Java object system 
with a clean foreign-function interface and more.


Downloads and More Information
------------------------------

Source code, binaries, and SISC documentation can be found on 
the web at:

    http://sisc.sourceforge.net


Licensing
---------

SISC is Free Software.  It is released simultaneously under the GNU
General Public License (for free-software projects), and the Mozilla
Public License (for commercial entities).  The documentation is
available under the GPL.


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