Tree Shaking, a modern dead code elimination algorithm for ECMAScript 2015+ is one of the most anticipated features in Webpack 2. By eliminating unused ES6 exports, Webpack can further help the minification process to get your bundle much smaller than ever before. Update 11/14/2016: Webpack 2 sample application code has been updated to match the most recent updates in Webpack (v2.2), React (v15.4)