Summary for the impatient: - A completely new GUI and drawing layer. Replacing 200,000 lines of C++, Xt, Win32, and Carbon with about 30,000 lines of Racket th

Summary for the impatient: - A completely new GUI and drawing layer. Replacing 200,000 lines of C++, Xt, Win32, and Carbon with about 30,000 lines of Racket that builds on Gtk, Win32, Cocoa, Cairo, and Pango. Nice. - Web server changed semantics - Scribble documents can now hold any image - Module dependency tools