These are the latest Gemfiles for the Ruby on Rails Tutorial (4th Ed.) by Michael Hartl. Because the files here are easier to keep up-to-date, readers of the Ruby on Rails Tutorial print edition should always use these Gemfiles in preference to the ones listed in the book.
Gemfilefor the hello app (hello_app) from Chapter 1Gemfilefor the toy app (toy_app) from Chapter 2Gemfilefor the sample app (sample_app) from Chapters 3–14