appraise "rails_5.0" do gem "railties", "~> 5.0" gem 'rspec-rails', '~> 3.1' gem 'capybara', '>= 2.6.2', '< 3.33.0' gem 'sqlite3', '~> 1.3.13' end appraise "rails_5.1" do gem "railties", "~> 5.1" end appraise "rails_5.2" do gem "railties", "~> 5.2" end appraise "rails_6.0" do gem "railties", "~> 6.0" end