「Collaborating across W3C and Ecma for web-interoperable server runtimes through WinterTC | 2025 | Blog | W3C」
The W3C Web Interoperable Runtimes Community Group ("WinterCG") and Ecma International (the organization which standardizes ECMAScript, also known as JavaScript) have collaborated to create a new Ecma Technical Committee,TC55 – Web-interoperable server runtimes, dubbed "WinterTC", for the development of a common web-aligned API surface for server-side JavaScript runtimes like Node.js, Deno and Cloudflare Workers.