The Progress of Node.js a Year Post Merge and Where the Technology Is Going

I think that is what they mean by "It will also support 98% of ES6 language features — up from 56 percent in Node.js v5.", that 2% should include modules. In the next paragraph:

> The Node.js Core team continues to improve ES6/7 support — not an easy task. Key features of support to be added in future releases include: Promises [...], async await and supporting additional ES6 modules.