Great to see this updated for 1.5. Aside from that and some treatment of clojurescript, are there other updates from the first edition that might push a 1st edition owner to buy this one too?
A couple topics that we plan to cover, besides the 1.5 additions and changes and ClojureScript, are logic programming and data-driven development. We talked a little about the latter in the 1st edition, but it'll be front and center in the 2nd.