This release tries to address some of the major issues found in the 1.0.4 version, issues that have been reported by many users. In particular, the major issue that should be resolved is the actual impossibility to use more than two environments at a time (bug 1669794). Also, at the cost of some performance, a mechanism has been implemented to avoid garbage collection over non asserted facts (bug 1575151) in situations where it would be triggered and corrupt slots (this happens in CLIPS by design: see http://www.cpbinc.com/clips/viewtopic.php?t=2653&highlight= for details).
PyCLIPS is now actively developed and tested with Python versions 2.4 and 2.5; it should also work with Python 2.3 though.
You can find the documentation for this release at this address: http://pyclips.sourceforge.net/manual/pyclips.html
You can download this release at the following address: http://sourceforge.net/project/showfiles.php?group_id=114052&package_id=123549