appraise "rails23" do gem "activerecord", "~> 2.3.0" end appraise "rails30" do gem "activerecord", "~> 3.0.0" end appraise "rails31" do gem "activerecord", "~> 3.1.0" end appraise "rails32" do gem "activerecord", "~> 3.2.0" end appraise "rails32-pg" do gem "activerecord", "~> 3.2.0" end