    # File lib/chef/provider/package.rb, line 67
          def action_upgrade
            if @current_resource.version != candidate_version
              orig_version = @current_resource.version || "uninstalled"
              status = upgrade_package(@new_resource.package_name, candidate_version)
              if status
                @new_resource.updated_by_last_action(true)
              end
              Chef::Log.info("#{@new_resource} upgraded from #{orig_version} to #{candidate_version}")
            else
              Chef::Log.debug("#{@new_resource} is at the latest version - nothing to do")
            end
          end