Version 1.6 is completely compatible with version 1.5. Some new features have been added, the system has been ported to various new platforms and there is a provisional interface to GNU Emacs. This interface will be improved and documented later.
The WAM virtual-machine interpreter has been modified to use GCC-2's support for threaded code.
From version 1.6, the sources are now versioned using the CVS version control system.