Back to the list TC39ECMAScriptGeneralActivitiesTask GroupsPublished StandardsNumberDescriptionLast ChangeECMA-262ECMAScript® 2020 language specification, 11th edition (June 2020) June 2020ECMA-402ECMAScript® 2020 internationalization API specificationJune 2020ECMA-404The JSON data interchange syntaxDecember 2017ECMA-414ECMAScript® specification suiteDecember 2017