2.0.1 - Coffeescript

releaseHeader('2017-09-26', '2.0.1', '2.0.0')

babel-core is no longer listed in package.json, even as an optionalDependency, to avoid it being automatically installed for most users. If you wish to use --transpile, simply install babel-core manually. See Transpilation.
--transpile now relies on Babel to find its options, i.e. the .babelrc file in the path of the file(s) being compiled. (Previously the CoffeeScript compiler was duplicating this logic, so nothing has changed from a user’s perspective.) This provides automatic support for additional ways to pass options to Babel in future versions, such as the .babelrc.js file coming in Babel 7.
Backticked expressions in a class body, outside any class methods, are now output in the JavaScript class body itself. This allows for passing through experimental JavaScript syntax like the class fields proposal, assuming your transpiler supports it.