appraise "ruby" do end appraise "rails-3.0" do gem "rails", "~> 3.0.20" end appraise "rails-3.1" do gem "rails", "~> 3.1.12" end appraise "rails-3.2" do gem "rails", "~> 3.2.21" end appraise "rails-4.0" do gem "rails", "~> 4.0.13" end appraise "rails-4.1" do gem "rails", "~> 4.1.15" end appraise "rails-4.2" do gem "rails", "4.2.6" end appraise "rails-5.0" do gem "rails", "5.0.0.beta4" end