Ecma Technical Committee 55: Web-interoperable Server Runtimes (a.k.a. WinterTC) aims to provide a space for JavaScript runtimes to collaborate on API interoperability with each other and with the web.
Learn more at https://wintertc.org/.
If you are a representative of a company or an individual building a web-interoperable runtime, or are interested in collaborating on the work that we do, here is how you can help.
- You can open an issue or a PR to any of the existing repos in this GitHub organization.
- You can participate in workstream discussions you are interested in. You can find the active workstreams at https://wintertc.org/work
- You can join the WinterTC Matrix channel: https://matrix.to/#/#wintertc:matrix.org. This is the primary communications channel outside of the GitHub issues.
- You can review the agendas and minutes of the regularly held meetings.
- In most scenarios, you can join the committee to actively attend meetings.
For improved awareness of WinterTC (TC55) events, there is a public calendar available.
Members are typically one of two categories: Delegates and Invited Experts.
- If you work for an Ecma member organization), you can become a delegate on behalf of your employer.
- If you don't work for an Ecma member, or your company is still exploring membership, you can participate by becoming an invited expert.
If you have already joined the committee via one of these roles, you can find the link to join the call via the GitHub organisation members-only view
For more information on WinterTC (TC55)'s scope and programme of work, see the committee page on Ecma's website.
WinterTC (TC55) was initially started as a W3C Community Group called WinterCG, but in December 2024 decided to move to Ecma. You can read the rationale for this move in the standardization document. All documents from the W3C Community Group era are retained in the WinterCG Archive.