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?

Currently the text under "Chrome" says "No" on the MDN page

Chrome Desktop 138 has added support for sign() CSS function.

What browsers does this problem apply to, if applicable?

No response

What did you expect to see?

Checkmark with green text saying 138 under the Chrome column.

Did you test this? If so, how?

div {
  height: 100px;
  width: calc(100px + 50px * sign(-5 * 5));
  background: cyan;
}

If you change the - inside sign(, the width of the div will change as expected (between 50px and 150px).

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

See https://groups.google.com/a/chromium.org/g/blink-dev/c/NSW2sp4ItoU/m/zpyBG1IIAAAJ and https://chromiumdash.appspot.com/commits?commit=9d01364eb61bd196c5d880089cee5134e3459e32&platform=Mac

Do you have anything more you want to share?

No response

MDN URL

https://developer.mozilla.org/en-US/docs/Web/CSS/sign

MDN metadata