ECMAScript 6 – Playing around in Harmony ECMAScript 6 is the next version of our favorite scripting language ECMAScript 5. The code name is “Harmony” or “ES.next”. The current version of Javascript is 1.8.5, which was upgraded around July 2010 to be compliant with ECMAScript 5 features. You can learn more ECMAScript 5 and below versions here. ECMAScript 6 draft specification can be found here. ECM