Temporal - Node.js v26

[james-pre]

What type of issue is this?

Incorrect support data (example: BrowserX says "86" but support was added in "40")

What information was incorrect, unhelpful, or incomplete?

Node.js v26 was released today (blog, github release) and includes full support for the Temporal API.

What browsers does this problem apply to, if applicable?

Node.js

What did you expect to see?

Compatiblity tables should be updated.

Did you test this? If so, how?

I downloaded Node.js v26 and tested some parts of the Temporal API.

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

• https://nodejs.org/en/blog/release/v26.0.0#temporal-api
• https://github.com/nodejs/node/releases/tag/v26.0.0
• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal

Do you have anything more you want to share?

No response

MDN URL

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal

MDN metadata

MDN page report details

• Query: javascript.builtins.Temporal
• Report started: 2026-05-05T22:38:26.848Z

[DecimalTurn]

Would it also be worth mentioning that Node v20+ has almost full support when using the flag --harmony-temporal?

I tried running the test script provided in the PR and I've got 230/232 tests passing while using the flag.

[caugner]

Would it also be worth mentioning that Node v20+ has almost full support when using the flag --harmony-temporal?

In BCD, we consider flag data irrelevant once the feature landed in the stable release.

See: https://github.com/mdn/browser-compat-data/blob/main/docs/data-guidelines/README.md#removal-of-irrelevant-flag-data

[DecimalTurn]

Gotcha, thanks!