P1.0 (Printing) - 31 March 2011

  • First Printing

B3.0 - 23 January 2011

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

B2.0 - 28 December 2010

  • 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.

B1.0 - 07 December 2010

  • First Beta