master
appraise 'rails3.1' do gem 'rails', '~> 3.1.0' end appraise 'rails3.2' do gem 'rails', '~> 3.2.0' end appraise 'rails4.0' do gem 'rails', '~> 4.0.0' end appraise 'rails4.1' do gem 'rails', '~> 4.1.0' end