Yes, the book has received significant updates lately. More updates are available from the draft version: http://www.ccs.neu.edu/home/matthias/HtDP2e/Draft/ ht

Yes, the book has received significant updates lately. More updates are available from the draft version: http://www.ccs.neu.edu/home/matthias/HtDP2e/Draft/ http://www.ccs.neu.edu/home/matthias/HtDP2e/Draft/ . But, of course, it's not done yet, so there are still parts missing.