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!
'use strict';
const bundleTypes = {
  UMD_DEV: 'UMD_DEV',
  UMD_PROD: 'UMD_PROD',
  NODE_DEV: 'NODE_DEV',
  NODE_PROD: 'NODE_PROD',
  NODE_PROFILING: 'NODE_PROFILING',
  FB_WWW_DEV: 'FB_WWW_DEV',
  FB_WWW_PROD: 'FB_WWW_PROD',
  FB_WWW_PROFILING: 'FB_WWW_PROFILING',
  RN_OSS_DEV: 'RN_OSS_DEV',
  RN_OSS_PROD: 'RN_OSS_PROD',
  RN_OSS_PROFILING: 'RN_OSS_PROFILING',
  RN_FB_DEV: 'RN_FB_DEV',
  RN_FB_PROD: 'RN_FB_PROD',
  RN_FB_PROFILING: 'RN_FB_PROFILING',
};