Release Notes: Support was added for Intel Macs running Mac OS X.
Release Notes: A handful of small bugs have been fixed.
Release Notes: Standard Scheme ("hygienic") macros are now supported. The workaround for AMD Athlon processors now works properly on Windows.
Release Notes: A workaround for a fatal bug in some AMD Athlon processors.
Release Notes: An XML parser and support for writing other parsers. The compiled-code representation has been changed, so applications must be recompiled.