DHTMLX Gantt 4.1 technolgy


We are having Gantt 4.1 and we want to upgrade to latest one. But we want to know the technology being used for 4.1 and 7.0.
I know its javascript, but could you please let me know which standards (e.g. ES5, ES6) version 4.1 and version 7.0 conform to?


The end code of the library is written according to ES5 standards. It doesn’t have the newer features that you can find in ES6 or newer versions, so Gantt can work in old browsers. But you can use it ES6 and AngularJS applications and Javascript frameworks like Angular, React, and Vue.