appraise "3.2" do gem "rails", "~> 3.2.15" gem "paperclip", :path => "../" end appraise "4.0" do gem "rails", "~> 4.0.0" gem "paperclip", :path => "../" end appraise "4.1" do gem "rails", "~> 4.1.0" gem "paperclip", :path => "../" end appraise "4.2" do gem "rails", "~> 4.2.0.rc2" gem "paperclip", :path => "../" end