PLT Scheme version 371 is now available from http://download.plt-scheme.org/ This is mostly a bug-fix release. Changes:
- The debugger now works across multiple files and supports "step over" and "step out" operations.
- HtDP teachpacks: the world.ss teachpack now exports two add-line functions: one from image.ss and one for adding lines to scenes.
- ProfessorJ now includes a language level between Intermediate and Advanced, Intermediate + access, that includes all of Intermediate and introduces access modifiers and overloading. The language manuals contain the complete details.