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!
.filter(filterPrivateKeys)
      .sort();
    forwardedAPIs.forEach(forwardedAPI => {
      expect(
        Object.keys(forwardedAPI)
          .filter(filterPrivateKeys)
          .sort(),
      ).toEqual(apiKeys);
    });
  }
  it('should define the same scheduling API', () => {
    const api = require('../../index');
    const umdAPIDev = require('../../npm/umd/schedule.development');
    const umdAPIProd = require('../../npm/umd/schedule.production.min');
    const secretAPI = require('react/src/ReactSharedInternals').default;
    validateForwardedAPIs(api, [umdAPIDev, umdAPIProd, secretAPI.Schedule]);
  });
  it('should define the same tracing API', () => {
    const api = require('../../tracing');
    const umdAPIDev = require('../../npm/umd/schedule-tracing.development');
    const umdAPIProd = require('../../npm/umd/schedule-tracing.production.min');
    const secretAPI = require('react/src/ReactSharedInternals').default;
    validateForwardedAPIs(api, [
      umdAPIDev,
      umdAPIProd,
      secretAPI.ScheduleTracing,
    ]);
  });
});