Jesper Louis Andersen <jlouis@mongers.org> in private email.
No earth-shattering changes, just a long list of bugfixes and minor
twiddles and additions. For a complete list, see plt/notes/mzscheme/HISTORY
changes:
* NetBSD patches integrated
* improvements to the module system
* new interfaces
basically numerous changes, see plt/notes/mzscheme in the source directory