appraise 'rails-61' do gem 'actionpack', '~> 6.1.0' gem 'railties', '~> 6.1.0' end appraise 'rails-60' do gem 'actionpack', '~> 6.0.0' gem 'railties', '~> 6.0.0' end appraise 'rails-52' do gem 'actionpack', '~> 5.2.0' gem 'railties', '~> 5.2.0' end appraise 'rails-51' do gem 'actionpack', '~> 5.1.0' gem 'railties', '~> 5.1.0' end appraise 'rails-50' do gem 'actionpack', '~> 5.0.0' gem 'railties', '~> 5.0.0' end appraise 'rails-42' do gem 'actionpack', '~> 4.2.0' gem 'railties', '~> 4.2.0' end