The 16.5.0 package released to unpkg currently has the production/profiling variant present for cjs builds but there is no equivalent for umd builds. 

i.e. There is the file https://unpkg.com/react@16.5.0/cjs/react.profiling.min.js but there is no https://unpkg.com/react@16.5.0/umd/react.profiling.min.js

It would be great if a future release had the profiling variant packaged as umd as well.

Also thanks for the awesome framework!
return `/**
${license}
 *
 * @noflow
 * @preventMunge
 * ${'@gen' + 'erated'}
 */
${source}`;
  },
};
const reconcilerWrappers = {
  
  [NODE_DEV](source, globalName, filename, moduleType) {
    return `/** @license React v${reactVersion}
 * ${filename}
 *
${license}
 */
'use strict';
if (process.env.NODE_ENV !== "production") {
  module.exports = function $$$reconciler($$$hostConfig) {
${source}
    var $$$renderer = module.exports;
    module.exports = $$$reconciler;
    return $$$renderer;
  };
}`;
  },
  
  [NODE_PROD](source, globalName, filename, moduleType) {