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25d33be440
* document random($limit) behavior whe $limit has units * add breaking change section for random-with-units * add random-with-units link to sidenav
43 lines
1.8 KiB
Plaintext
43 lines
1.8 KiB
Plaintext
---
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title: Breaking Changes
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introduction: >
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New versions of Sass are as backwards-compatible as possible, but sometimes
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a breaking change is necessary. Sass needs to keep up with the evolving CSS
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specification, and old language design mistakes occasionally need to be fixed.
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overview: true
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---
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Before each breaking change is released, Sass implementations will produce
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deprecation warnings for stylesheets whose behavior will change. Whenever
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possible, these warnings will include suggestions for how to update the
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deprecated styles to make them forward-compatible.
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Different implementations have different policies for breaking changes and
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deprecations. [Dart Sass][] will emit deprecation warnings for at least three
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months before releasing a breaking change, and will release the breaking change
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with a new major version number **unless that change is necessary for CSS
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compatibility**. CSS compatibility changes are often both non-disruptive and
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time-sensitive, so they may be released with new minor version numbers instead.
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[Dart Sass]: /dart-sass
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These breaking changes are coming soon or have recently been released:
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* [`random()` with units](breaking-changes/random-with-units) beginning in Dart
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Sass 1.54.5.
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* [Selectors with invalid combinators will be
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invalid](breaking-changes/bogus-combinators) beginning in Dart Sass 1.54.0.
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* [`/` is changing from a division operation to a list
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separator](breaking-changes/slash-div) beginning in Dart Sass 1.33.0.
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* [Color functions are becoming more strict about
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units](breaking-changes/color-units) beginning in Dart Sass 1.32.0.
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* [Compound selectors could not be extended](breaking-changes/extend-compound)
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in Dart Sass 1.0.0 and Ruby Sass 4.0.0.
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* [The syntax for CSS custom property values changed](breaking-changes/css-vars)
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in Dart Sass 1.0.0, LibSass 3.5.0, and Ruby Sass 3.5.0.
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