JavaScript Versions

Last Updated : 16 Nov, 2024

JavaScript is a popular programming language used by developers all over the world. It’s a lightweight and easy-to-learn language that can run on both the client-side (in your browser) and the server-side (on the server). JavaScript was created in 1995 by Brendan Eich.

In 1997, JavaScript became a standard, known as ECMAScript. Since then, there have been many versions of ECMAScript, with new features added over the years. Each version after 2016 is named after the year it was released, like ECMAScript 2016, ECMAScript 2017, and so on.

JavaScript Versions

Let’s take a look at the different versions of ECMAScript, their release years, and the key features they introduced:

Version	Name	Release Year	Features
ES1	ECMAScript 1	1997	Initial Release
ES2	ECMAScript 2	1998	Minor Editorial Changes
ES3	ECMAScript 3	1999	Added: Regular Expression try/catch Exception Handling switch case and do-while
ES4	ECMAScript 4		Abandoned due to conflicts
ES5	ECMAScript 5	2009	Added: JavaScript "strict mode" JSON support JS getters and setters
ES6	ECMAScript 2015	2015	Added: let and const Class declaration import and export for..of loop Arrow functions
ES7	ECMAScript 2016	2016	Added: Block scope for variable async/await Array.includes function Exponentiation Operator
ES8	ECMAScript 2017	2017	Added: Object.values Object.entries Object.getOwnPropertiesDescriptors
ES9	ECMAScript 2018	2018	Added: spread operator rest parameters
ES10	ECMAScript 2019	2019	Added: Array.flat() Array.flatMap() Array.sort is now stable
ES11	ECMAScript 2020	2020	Added: BigInt primitive type nullish coalescing operator
ES12	ECMAScript 2021	2021	Added: String.replaceAll() Method Promise.any() Method
ES13	ECMAScript 2022	2022	Added: Top-level await New class elements Static block inside classes
ES14	ECMAScript 2023	2023	Added: toSorted method toReversed method findLast, and findLastIndex methods on Array.prototype and TypedArray.prototypet

Note: Older versions of browsers do not support ES6.

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