appraise 'rails-4.2' do
  gem 'rails', '~> 4.2.0'
end

appraise 'rails-5.0' do
  gem 'rails', '~> 5.0.0'
end

appraise 'rails-5.1' do
  gem 'rails', '~> 5.1.0'
end

appraise 'rails-5.2' do
  gem 'rails', '~> 5.2.0.rc1'
end
