appraise "3.0" do gem "activerecord", "~> 3.0.0" end appraise "3.1" do gem "activerecord", "~> 3.1.0" end appraise "3.2" do gem "activerecord", "~> 3.2.0" end appraise "4.0" do gem "activerecord", "~> 4.0.0" end