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!
const forksForBundle = {};
  Object.keys(forks).forEach(srcModule => {
    const dependencies = getDependencies(bundleType, entry);
    const targetModule = forks[srcModule](
      bundleType,
      entry,
      dependencies,
      moduleType
    );
    if (targetModule === null) {
      return;
    }
    forksForBundle[srcModule] = targetModule;
  });
  return forksForBundle;
}
function getImportSideEffects() {
  return importSideEffects;
}
module.exports = {
  getImportSideEffects,
  getPeerGlobals,
  getDependencies,
  getForks,
};