[iamflimflam1]

I've been using babel instead of the internal transpiler and yes you can use all the ES6 syntax out of the box.

I think the JSX transpiler was deprecated some time ago and pretty much all the react starter templates and examples have been using Babel.

I don't think adopting babel is going to compromise your use of coffeescript, in then babel is just transpiling down to old style javascript.

[danmaz74]

So you were using babel with a JSX module? Did they just make the JSX module the default? Sorry but I know babel only by name yet!