20 June 2017 B3.0

  • New section on Active Job in Chapter 14.
  • Section on system testing when sending email and queuing background jobs.
  • Addressed errata

31 May 2017 B2.0

Addition of the chapter “Task K: Internationalization”, which includes translation of the React JavaScript application using the i18n-js library. Code throughout the book has been updated to Rails 5.1.1 and WebPacker 2.0. 11 other errata have been fixed.

09 May 2017 B1.0

Initial beta release.