# Node.js 21 is now available!

DevFeed: [Node.js 21 is now available!](<https://devfeed.tech/articles/node-js-21-is-now-available-2432.md>)

Original publisher: [Read original article](<https://nodejs.org/en/blog/announcements/v21-release-announce>)

Published: 2023-10-17T15:45:00Z

Content type: article

Language: en

Sources: [Node.js Blog](<https://devfeed.tech/sources/node-js-blog.md>)

Topics: [Node.js](<https://devfeed.tech/topics/node-js.md>), [JavaScript](<https://devfeed.tech/topics/javascript.md>), [releases](<https://devfeed.tech/topics/releases.md>), [V8](<https://devfeed.tech/topics/v8.md>), [WebSocket](<https://devfeed.tech/topics/websocket.md>), [CommonJS](<https://devfeed.tech/topics/commonjs.md>)

Tags: [commonjs](<https://devfeed.tech/tags/commonjs.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [lts](<https://devfeed.tech/tags/lts.md>), [new-features](<https://devfeed.tech/tags/new-features.md>), [node-js](<https://devfeed.tech/tags/node-js.md>), [releases](<https://devfeed.tech/tags/releases.md>), [v8](<https://devfeed.tech/tags/v8.md>), [websocket](<https://devfeed.tech/tags/websocket.md>)

## AI overview

The article announces Node.js 21, which updates the V8 JavaScript engine to version 11.8, makes selected features stable, adds an experimental flag for changing module defaults, introduces a built-in WebSocket client, and expands the test runner with glob expression support. Node.js 21 becomes the Current release line while Node.js 20 moves toward long-term support.

## Source excerpt

Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.