<===> options.yml
---
:warning_todo:
- sass/libsass#2887

<===> input.scss
@function foo() {
  @return 1+2 3/4 5+6;
}

@mixin bar($x: 3/4) {
  bar-content: $x;
}

div {
  content: foobar(1+2 3/4 5+6, orange);
  content: append(1+2 2/3 5+6, orange);
  content: 1+2 2/3 5+6;
  content: type-of(2/3);
  content: type-of(orange);
  content: foo();
  @include bar();
}
<===> output.css
div {
  content: foobar(3 3/4 11, orange);
  content: 3 2/3 11 orange;
  content: 3 2/3 11;
  content: number;
  content: color;
  content: 3 3/4 11;
  bar-content: 0.75;
}

<===> warning
DEPRECATION WARNING: Using / for division is deprecated and will be removed in Dart Sass 2.0.0.

Recommendation: math.div(2, 3)

More info and automated migrator: https://sass-lang.com/d/slash-div

   ,
13 |   content: type-of(2/3);
   |                    ^^^
   '
    input.scss 13:20  root stylesheet

DEPRECATION WARNING: Using / for division is deprecated and will be removed in Dart Sass 2.0.0.

Recommendation: math.div(3, 4)

More info and automated migrator: https://sass-lang.com/d/slash-div

  ,
5 | @mixin bar($x: 3/4) {
  |                ^^^
  '
    input.scss 5:16  bar()
    input.scss 16:3  root stylesheet