How to make build for es5 and es6 browser from create-react-app ?

[slgauravsharma]

How to make build for es5 and es6 browser from create-react-app ?
(App will be more faster if we serve supporting build to browser there is no need to convert es6 to es5 if browser is support es6)

I saw Serving ES6 to modern browsers link:-(https://gist.github.com/newyankeecodeshop/79f3e1348a09583faf62ed55b58d09d9)

I want to do with different es5 broswer supoort es5 build and same as es6 support es6 build
how we can achieve or configuration is required.

Thanks In Advance
Cheers !!

[petetnt]

There's #4964 that did some legwork towards it. I just reopened #3125 which was the original issue for this that got sadly locked by the stale-bot we had in use back then. We can continue discussion there :)