Back to the list TC39ECMAScriptGeneralActivitiesTask GroupsPublished StandardsNumberDescriptionLast ChangeECMA-262ECMAScript® 2022 language specificationJune 2022ECMA-402ECMAScript® 2022 internationalization API specificationJune 2022ECMA-404The JSON data interchange syntaxDecember 2017ECMA-414ECMAScript® specification suiteDecember 2017