appraise "3.2" do gem "activerecord", git: 'https://github.com/rails/rails.git', branch: '3-2-stable' end appraise '4.0' do gem 'activerecord', "~> 4.0.13" end appraise '4.1' do gem 'activerecord', "~> 4.1.14" end appraise '4.2' do gem 'activerecord', "~> 4.2.5.1" end appraise '5.0' do gem 'activerecord', "~> 5.0.0.beta2" end