Node.js version 21 introduces improvements in the Fetch API, Web Streams API, WebSocket client, ES Modules, test runner, module customization, and performance. It is not recommended for production use and can be upgraded using the relevant link or an environment management tool like Volta.
Table of contents
Stable Fetch API StatusWeb Streams API Is StableA Built-in WebSocket ClientES Modules ImprovementsTest Runner ImprovementsModule Customization Improvementsllhttp v9.1.2 Strict Mode EnforcementPerformance Improvements to Key APIsV8 Upgraded to v11.8NPM Upgraded to v10.2.0Node.js 21 Miscellaneous UpdatesShould You Use Node.js v21 in Production?Upgrading to Node.js v21Wrapping UpSort: