• First Printing

• Final pre-production beta. Now to index, copy edit, typesetting and then to the printer.

• Changed Chapter 1 to include Gemfile’s description before Rakefile’s description.

• Fixed a few code samples which contained incorrect excerpts.

• Fixed a compatibility issue with Ruby 1.9.2 in Section 2.1.

• Added a note to the Preface about installing DevKit for Windows developers.

• First Beta