- Using NSTextView
- Creating Frameworks
- Creating Interface Builder Palettes
I understand why the palettes and GNUstep chapters were removed (Interface Builder no longer uses Palettes and GNUstep is somewhat dormant at the moment). In return, a few other chapters were added, most notably on web services, Core Data, and Core Animation.
Of course, it's not just chapters added that counts - a lot of new things have been written, new challenges have been added, and it really seems like a much better book.