appraise "rails-5-2" do gem "activerecord", "~> 5.2.0" end appraise "rails-5-1" do gem "activerecord", "~> 5.1.4" end appraise "rails-5-0" do gem "activerecord", "~> 5.0.6" end appraise "rails-4-2" do gem "activerecord", "~> 4.2.9" end appraise "rails-4-1" do gem "activerecord", "~> 4.1.16" end