appraise "4.2" do gem "activerecord", "~> 4.2.5.1" end appraise "5.0" do gem "activerecord", "~> 5.0.0" end appraise "5.1" do gem "activerecord", "~> 5.1.0" end appraise "5.2" do gem "activerecord", "~> 5.2.0" end