The Node.js Foundation has released the Node.js 4.0 version. This version is the first stable release and it contains the io.js code along with ES6 support.
Node.js has finally hit a stable version today and its 4.0 version is available for download. This version comes with enhanced ES6 support and it’s the first release that contains io.js code.
Node.js 4.0 also brings support for ARM supports for the first time and the team has developed a testing suite to check the consistency of Linux, FreeBSD, Windows, SmartOS and ARM devices. Other new features include ES6 classes, typed arrays, generators, promises, arrow functions, symbols, template strings, and block scoping.