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chore(deps): update dependency sass to ^1.79.3

Renovate requested to merge renovate/sass-1.x into staging

This MR contains the following updates:

Package Type Update Change
sass devDependencies minor ^1.37.5 -> ^1.79.3

Release Notes

sass/dart-sass (sass)

v1.79.3

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  • Update the $channel parameter in the suggested replacement for color.red(), color.green(), color.blue(), color.hue(), color.saturation(), color.lightness(), color.whiteness(), and color.blackness() to use a quoted string.

v1.79.2

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  • Add a $space parameter to the suggested replacement for color.red(), color.green(), color.blue(), color.hue(), color.saturation(), color.lightness(), color.whiteness(), and color.blackness().

  • Update deprecation warnings for the legacy JS API to include a link to relevant documentation.

v1.79.1

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  • No user-visible changes.

v1.79.0

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  • Breaking change: Passing a number with unit % to the $alpha parameter of color.change(), color.adjust(), change-color(), and adjust-color() is now interpreted as a percentage, instead of ignoring the unit. For example, color.change(red, $alpha: 50%) now returns rgb(255 0 0 / 0.5).

  • Potentially breaking compatibility fix: Sass no longer rounds RGB channels to the nearest integer. This means that, for example, rgb(0 0 1) != rgb(0 0 0.6). This matches the latest version of the CSS spec and browser behavior.

  • Potentially breaking compatibility fix: Passing large positive or negative values to color.adjust() can now cause a color's channels to go outside that color's gamut. In most cases this will currently be clipped by the browser and end up showing the same color as before, but once browsers implement gamut mapping it may produce a different result.

  • Add support for CSS Color Level 4 color spaces. Each color value now tracks its color space along with the values of each channel in that color space. There are two general principles to keep in mind when dealing with new color spaces:

    1. With the exception of legacy color spaces (rgb, hsl, and hwb), colors will always be emitted in the color space they were defined in unless they're explicitly converted.

    2. The color.to-space() function is the only way to convert a color to another color space. Some built-in functions may do operations in a different color space, but they'll always convert back to the original space afterwards.

  • rgb colors can now have non-integer channels and channels outside the normal gamut of 0-255. These colors are always emitted using the rgb() syntax so that modern browsers that are being displayed on wide-gamut devices can display the most accurate color possible.

  • Add support for all the new color syntax defined in Color Level 4, including:

    • oklab(), oklch(), lab(), and lch() functions;
    • a top-level hwb() function that matches the space-separated CSS syntax;
    • and a color() function that supports the srgb, srgb-linear, display-p3, a98-rgb, prophoto-rgb, rec2020, xyz, xyz-d50, and xyz-d65 color spaces.
  • Add new functions for working with color spaces:

    • color.to-space($color, $space) converts $color to the given $space. In most cases this conversion is lossless—the color may end up out-of-gamut for the destination color space, but browsers will generally display it as best they can regardless. However, the hsl and hwb spaces can't represent out-of-gamut colors and so will be clamped.

    • color.channel($color, $channel, $space: null) returns the value of the given $channel in $color, after converting it to $space if necessary. It should be used instead of the old channel-specific functions such as color.red() and color.hue().

    • color.same($color1, $color2) returns whether two colors represent the same color even across color spaces. It differs from $color1 == $color2 because == never consider colors in different (non-legacy) spaces as equal.

    • color.is-in-gamut($color, $space: null) returns whether $color is in-gamut for its color space (or $space if it's passed).

    • color.to-gamut($color, $space: null) returns $color constrained to its space's gamut (or to $space's gamut, if passed). This is generally not recommended since even older browsers will display out-of-gamut colors as best they can, but it may be necessary in some cases.

    • color.space($color): Returns the name of $color's color space.

    • color.is-legacy($color): Returns whether $color is in a legacy color space (rgb, hsl, or hwb).

    • color.is-powerless($color, $channel, $space: null): Returns whether the given $channel of $color is powerless in $space (or its own color space). A channel is "powerless" if its value doesn't affect the way the color is displayed, such as hue for a color with 0 chroma.

    • color.is-missing($color, $channel): Returns whether $channel's value is missing in $color. Missing channels can be explicitly specified using the special value none and can appear automatically when color.to-space() returns a color with a powerless channel. Missing channels are usually treated as 0, except when interpolating between two colors and in color.mix() where they're treated as the same value as the other color.

  • Update existing functions to support color spaces:

    • hsl() and color.hwb() no longer forbid out-of-bounds values. Instead, they follow the CSS spec by clamping them to within the allowed range.

    • color.change(), color.adjust(), and color.scale() now support all channels of all color spaces. However, if you want to modify a channel that's not in $color's own color space, you have to explicitly specify the space with the $space parameter. (For backwards-compatibility, this doesn't apply to legacy channels of legacy colors—for example, you can still adjust an rgb color's saturation without passing $space: hsl).

    • color.mix() and color.invert() now support the standard CSS algorithm for interpolating between two colors (the same one that's used for gradients and animations). To use this, pass the color space to use for interpolation to the $method parameter. For polar color spaces like hsl and oklch, this parameter also allows you to specify how hue interpolation is handled.

    • color.complement() now supports a $space parameter that indicates which color space should be used to take the complement.

    • color.grayscale() now operates in the oklch space for non-legacy colors.

    • color.ie-hex-str() now automatically converts its color to the rgb space and gamut-maps it so that it can continue to take colors from any color space.

  • The following functions are now deprecated, and uses should be replaced with the new color-space-aware functions defined above:

    • The color.red(), color.green(), color.blue(), color.hue(), color.saturation(), color.lightness(), color.whiteness(), and color.blackness() functions, as well as their global counterparts, should be replaced with calls to color.channel().

    • The global adjust-hue(), saturate(), desaturate(), lighten(), darken(), transaprentize(), fade-out(), opacify(), and fade-in() functions should be replaced by color.adjust() or color.scale().

  • Add a global-builtin future deprecation, which can be opted-into with the --future-deprecation flag or the futureDeprecations option in the JS or Dart API. This emits warnings when any global built-in functions that are now available in sass: modules are called. It will become active by default in an upcoming release alongside the @import deprecation.

Dart API
  • Added a ColorSpace class which represents the various color spaces defined in the CSS spec.

  • Added SassColor.space which returns a color's color space.

  • Added SassColor.channels and .channelsOrNull which returns a list of channel values, with missing channels converted to 0 or exposed as null, respectively.

  • Added SassColor.isLegacy, .isInGamut, .channel(), .isChannelMissing(), .isChannelPowerless(), .toSpace(), .toGamut(), .changeChannels(), and .interpolate() which do the same thing as the Sass functions of the corresponding names.

  • SassColor.rgb() now allows out-of-bounds and non-integer arguments.

  • SassColor.hsl() and .hwb() now allow out-of-bounds arguments.

  • Added SassColor.hwb(), .srgb(), .srgbLinear(), .displayP3(), .a98Rgb(), .prophotoRgb(), .rec2020(), .xyzD50(), .xyzD65(), .lab(), .lch(), .oklab(), .oklch(), and .forSpace() constructors.

  • Deprecated SassColor.red, .green, .blue, .hue, .saturation, .lightness, .whiteness, and .blackness in favor of SassColor.channel().

  • Deprecated SassColor.changeRgb(), .changeHsl(), and .changeHwb() in favor of SassColor.changeChannels().

  • Added SassNumber.convertValueToUnit() as a shorthand for SassNumber.convertValue() with a single numerator.

  • Added InterpolationMethod and HueInterpolationMethod which collectively represent the method to use to interpolate two colors.

JS API
  • While the legacy API has been deprecated since we released the modern API, we now emit warnings when the legacy API is used to make sure users are aware that it will be removed in Dart Sass 2.0.0. In the meantime, you can silence these warnings by passing legacy-js-api in silenceDeprecations when using the legacy API.

  • Modify SassColor to accept a new space option, with support for all the new color spaces defined in Color Level 4.

  • Add SassColor.space which returns a color's color space.

  • Add SassColor.channels and .channelsOrNull which returns a list of channel values, with missing channels converted to 0 or exposed as null, respectively.

  • Add SassColor.isLegacy, .isInGamut(), .channel(), .isChannelMissing(), .isChannelPowerless(), .toSpace(), .toGamut(), .change(), and .interpolate() which do the same thing as the Sass functions of the corresponding names.

  • Deprecate SassColor.red, .green, .blue, .hue, .saturation, .lightness, .whiteness, and .blackness in favor of SassColor.channel().

Embedded Sass
  • Add Color SassScript value, with support for all the new color spaces defined in Color Level 4.

  • Remove RgbColor, HslColor and HwbColor SassScript values.

v1.78.0

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  • The meta.feature-exists function is now deprecated. This deprecation is named feature-exists.

  • Fix a crash when using @at-root without any queries or children in the indented syntax.

JS API
  • Backport the deprecation options (fatalDeprecations, futureDeprecations, and silenceDeprecations) to the legacy JS API. The legacy JS API is itself deprecated, and you should move off of it if possible, but this will allow users of bundlers and other tools that are still using the legacy API to still control deprecation warnings.

  • Fix a bug where accessing SourceSpan.url would crash when a relative URL was passed to the Sass API.

Embedded Sass
  • Explicitly expose a sass executable from the sass-embedded npm package. This was intended to be included in 1.63.0, but due to the way platform-specific dependency executables are installed it did not work as intended. Now users can run npx sass for local installs or just sass when sass-embedded is installed globally.

  • Add linux-riscv64, linux-musl-riscv64, and android-riscv64 support for the sass-embedded npm package.

  • Fix an edge case where the Dart VM could hang when shutting down when requests were in flight.

  • Fix a race condition where the embedded host could fail to shut down if it was closed around the same time a new compilation was started.

  • Fix a bug where parse-time deprecation warnings could not be controlled by the deprecation options in some circumstances.

v1.77.8

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  • No user-visible changes.

v1.77.7

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  • Declarations that appear after nested rules are deprecated, because the semantics Sass has historically used are different from the semantics specified by CSS. In the future, Sass will adopt the standard CSS semantics.

    See the Sass website for details.

  • Potentially breaking bug fix: // in certain places such as unknown at-rule values was being preserved in the CSS output, leading to potentially invalid CSS. It's now properly parsed as a silent comment and omitted from the CSS output.

v1.77.6

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  • Fix a few cases where comments and occasionally even whitespace wasn't allowed between the end of Sass statements and the following semicolon.

v1.77.5

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  • Fully trim redundant selectors generated by @extend.

v1.77.4

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Embedded Sass
  • Support passing Version input for fatalDeprecations as string over embedded protocol.

  • Fix a bug in the JS Embedded Host where Version could be incorrectly accepted as input for silenceDeprecations and futureDeprecations in pure JS.

v1.77.3

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Dart API
  • Deprecation.duplicateVariableFlags has been deprecated and replaced with Deprecation.duplicateVarFlags to make it consistent with the duplicate-var-flags name used on the command line and in the JS API.

v1.77.2

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  • Don't emit deprecation warnings for functions and mixins beginning with __.

  • Allow user-defined functions whose names begin with _ and otherwise look like vendor-prefixed functions with special CSS syntax.

Command-Line Interface
  • Properly handle the --silence-deprecation flag.

  • Handle the --fatal-deprecation and --future-deprecation flags for --interactive mode.

v1.77.1

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  • Fix a crash that could come up with importers in certain contexts.

v1.77.0

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  • Don't throw errors for at-rules in keyframe blocks.

v1.76.0

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  • Throw errors for misplaced statements in keyframe blocks.

  • Mixins and functions whose names begin with -- are now deprecated for forwards-compatibility with the in-progress CSS functions and mixins spec. This deprecation is named css-function-mixin.

v1.75.0

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  • Fix a bug in which stylesheet canonicalization could be cached incorrectly when custom importers or the Node.js package importer made decisions based on the URL of the containing stylesheet.
JS API
  • Allow importer to be passed without url in StringOptionsWithImporter.

v1.74.1

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  • No user-visible changes.

v1.72.0

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  • Support adjacent /s without whitespace in between when parsing plain CSS expressions.

  • Allow the Node.js pkg: importer to load Sass stylesheets for package.json exports field entries without extensions.

  • When printing suggestions for variables, use underscores in variable names when the original usage used underscores.

JavaScript API
  • Properly resolve pkg: imports with the Node.js package importer when arguments are passed to the JavaScript process.

v1.71.1

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Command-Line Interface
  • Ship the musl Linux release with the proper Dart executable.
JavaScript API
  • Export the NodePackageImporter class in ESM mode.

  • Allow NodePackageImporter to locate a default directory even when the entrypoint is an ESM module.

Dart API
  • Make passing a null argument to NodePackageImporter() a static error rather than just a runtime error.
Embedded Sass
  • In the JS Embedded Host, properly install the musl Linux embedded compiler when running on musl Linux.

v1.71.0

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For more information about pkg: importers, see the announcement on the Sass blog.

Command-Line Interface
  • Add a --pkg-importer flag to enable built-in pkg: importers. Currently this only supports the Node.js package resolution algorithm, via --pkg-importer=node. For example, @use "pkg:bootstrap" will load node_modules/bootstrap/scss/bootstrap.scss.
JavaScript API
  • Add a NodePackageImporter importer that can be passed to the importers option. This loads files using the pkg: URL scheme according to the Node.js package resolution algorithm. For example, @use "pkg:bootstrap" will load node_modules/bootstrap/scss/bootstrap.scss. The constructor takes a single optional argument, which indicates the base directory to use when locating node_modules directories. It defaults to path.dirname(require.main.filename).
Dart API
  • Add a NodePackageImporter importer that can be passed to the importers option. This loads files using the pkg: URL scheme according to the Node.js package resolution algorithm. For example, @use "pkg:bootstrap" will load node_modules/bootstrap/scss/bootstrap.scss. The constructor takes a single argument, which indicates the base directory to use when locating node_modules directories.

v1.70.0

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JavaScript API
  • Add a sass.initCompiler() function that returns a sass.Compiler object which supports compile() and compileString() methods with the same API as the global Sass object. On the Node.js embedded host, each sass.Compiler object uses a single long-lived subprocess, making compiling multiple stylesheets much more efficient.

  • Add a sass.initAsyncCompiler() function that returns a sass.AsyncCompiler object which supports compileAsync() and compileStringAsync() methods with the same API as the global Sass object. On the Node.js embedded host, each sass.AsynCompiler object uses a single long-lived subprocess, making compiling multiple stylesheets much more efficient.

Embedded Sass
  • Support the CompileRequest.silent field. This allows compilations with no logging to avoid unnecessary request/response cycles.

  • The Dart Sass embedded compiler now reports its name as "dart-sass" rather than "Dart Sass", to match the JS API's info field.

v1.69.7

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Embedded Sass
  • In the JS Embedded Host, properly install the x64 Dart Sass executable on ARM64 Windows.

v1.69.6

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  • Produce better output for numbers with complex units in meta.inspect() and debugging messages.

  • Escape U+007F DELETE when serializing strings.

  • When generating CSS error messages to display in-browser, escape all code points that aren't in the US-ASCII region. Previously only code points U+0100 LATIN CAPITAL LETTER A WITH MACRON were escaped.

  • Provide official releases for musl LibC and for Android.

  • Don't crash when running meta.apply() in asynchronous mode.

JS API
  • Fix a bug where certain exceptions could produce SourceSpans that didn't follow the documented SourceSpan API.

v1.69.5

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JS API
  • Compatibility with Node.js 21.0.0.

v1.69.4

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  • No user-visible changes.

v1.69.3

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Embedded Sass
  • Fix TypeScript type locations in package.json.

v1.69.2

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JS API
  • Fix a bug where Sass crashed when running in the browser if there was a global variable named process.

v1.69.1

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  • No user-visible changes.

v1.69.0

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  • Add a meta.get-mixin() function that returns a mixin as a first-class Sass value.

  • Add a meta.apply() mixin that includes a mixin value.

  • Add a meta.module-mixins() function which returns a map from mixin names in a module to the first-class mixins that belong to those names.

  • Add a meta.accepts-content() function which returns whether or not a mixin value can take a content block.

  • Add support for the relative color syntax from CSS Color 5. This syntax cannot be used to create Sass color values. It is always emitted as-is in the CSS output.

Dart API
  • Deprecate Deprecation.calcInterp since it was never actually emitted as a deprecation.
Embedded Sass
  • Fix a rare race condition where the embedded compiler could freeze when a protocol error was immediately followed by another request.

v1.68.0

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  • Fix the source spans associated with the abs-percent deprecation.
JS API
  • Non-filesystem importers can now set the nonCanonicalScheme field, which declares that one or more URL schemes (without :) will never be used for URLs returned by the canonicalize() method.

  • Add a containingUrl field to the canonicalize() and findFileUrl() methods of importers, which is set to the canonical URL of the stylesheet that contains the current load. For filesystem importers, this is always set; for other importers, it's set only if the current load has no URL scheme, or if its URL scheme is declared as non-canonical by the importer.

Dart API
  • Add AsyncImporter.isNonCanonicalScheme, which importers (async or sync) can use to indicate that a certain URL scheme will never be used for URLs returned by the canonicalize() method.

  • Add AsyncImporter.containingUrl, which is set during calls to the canonicalize() method to the canonical URL of the stylesheet that contains the current load. This is set only if the current load has no URL scheme, or if its URL scheme is declared as non-canonical by the importer.

Embedded Sass
  • The CalculationValue.interpolation field is deprecated and will be removed in a future version. It will no longer be set by the compiler, and if the host sets it it will be treated as equivalent to CalculationValue.string except that "(" and ")" will be added to the beginning and end of the string values.

  • Properly include TypeScript types in the sass-embedded package.

v1.67.0

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  • All functions defined in CSS Values and Units 4 are now once again parsed as calculation objects: round(), mod(), rem(), sin(), cos(), tan(), asin(), acos(), atan(), atan2(), pow(), sqrt(), hypot(), log(), exp(), abs(), and sign().

    Unlike in 1.65.0, function calls are not locked into being parsed as calculations or plain Sass functions at parse-time. This means that user-defined functions will take precedence over CSS calculations of the same name. Although the function names calc() and clamp() are still forbidden, users may continue to freely define functions whose names overlap with other CSS calculations (including abs(), min(), max(), and round() whose names overlap with global Sass functions).

  • Breaking change: As a consequence of the change in calculation parsing described above, calculation functions containing interpolation are now parsed more strictly than before. However, almost all interpolations that would have produced valid CSS will continue to work. The only exception is #{$variable}% which is not valid in Sass and is no longer valid in calculations. Instead of this, either use $variable directly and ensure it already has the % unit, or write ($variable * 1%).

  • Potentially breaking bug fix: The importer used to load a given file is no longer used to load absolute URLs that appear in that file. This was unintented behavior that contradicted the Sass specification. Absolute URLs will now correctly be loaded only from the global importer list. This applies to the modern JS API, the Dart API, and the embedded protocol.

Embedded Sass
  • Substantially improve the embedded compiler's performance when compiling many files or files that require many importer or function call round-trips with the embedded host.

v1.66.1

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JS API
  • Fix a bug where Sass compilation could crash in strict mode if passed a callback that threw a string, boolean, number, symbol, or bignum.

v1.66.0

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  • Breaking change: Drop support for the additional CSS calculations defined in CSS Values and Units 4. Custom Sass functions whose names overlapped with these new CSS functions were being parsed as CSS calculations instead, causing an unintentional breaking change outside our normal [compatibility policy] for CSS compatibility changes.

    Support will be added again in a future version, but only after Sass has emitted a deprecation warning for all functions that will break for at least three months prior to the breakage.

v1.65.1

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  • Update abs-percent deprecatedIn version to 1.65.0.

v1.65.0

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  • All functions defined in CSS Values and Units 4 are now parsed as calculation objects: round(), mod(), rem(), sin(), cos(), tan(), asin(), acos(), atan(), atan2(), pow(), sqrt(), hypot(), log(), exp(), abs(), and sign().

  • Deprecate explicitly passing the % unit to the global abs() function. In future releases, this will emit a CSS abs() function to be resolved by the browser. This deprecation is named abs-percent.

v1.64.2

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  • No user-visible changes.

v1.64.1

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Embedded Sass
  • Fix a bug where a valid SassCalculation.clamp() with less than 3 arguments would throw an error.

v1.64.0

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  • Comments that appear before or between @use and @forward rules are now emitted in source order as much as possible, instead of always being emitted after the CSS of all module dependencies.

  • Fix a bug where an interpolation in a custom property name crashed if the file was loaded by a @use nested in an @import.

JavaScript API
  • Add a new SassCalculation type that represents the calculation objects added in Dart Sass 1.40.0.

  • Add Value.assertCalculation(), which returns the value if it's a SassCalculation and throws an error otherwise.

  • Produce a better error message when an environment that supports some Node.js APIs loads the browser entrypoint but attempts to access the filesystem.

Embedded Sass
  • Fix a bug where nested relative @imports failed to load when using the deprecated functions render or renderSync and those relative imports were loaded multiple times across different files.

v1.63.6

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JavaScript API
  • Fix import sass from 'sass' again after it was broken in the last release.
Embedded Sass
  • Fix the exports declaration in package.json.

v1.63.5

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JavaScript API
  • Fix a bug where loading the package through both CJS require() and ESM import could crash on Node.js.
Embedded Sass
  • Fix a deadlock when running at high concurrency on 32-bit systems.

  • Fix a race condition where the embedded compiler could deadlock or crash if a compilation ID was reused immediately after the compilation completed.

v1.63.4

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JavaScript API
  • Re-enable support for import sass from 'sass' when loading the package from an ESM module in Node.js. However, this syntax is now deprecated; ESM users should use import * as sass from 'sass' instead.

    On the browser and other ESM-only platforms, only import * as sass from 'sass' is supported.

  • Properly export the legacy API values TRUE, FALSE, NULL, and types from the ECMAScript module API.

Embedded Sass
  • Fix a race condition where closing standard input while requests are in-flight could sometimes cause the process to hang rather than shutting down gracefully.

  • Properly include the root stylesheet's URL in the set of loaded URLs when it fails to parse.

v1.63.3

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JavaScript API
  • Fix loading Sass as an ECMAScript module on Node.js.

v1.63.2

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  • No user-visible changes.

v1.63.1

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  • No user-visible changes.

v1.63.0

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JavaScript API
  • Dart Sass's JS API now supports running in the browser. Further details and instructions for use are in the README.
Embedded Sass
  • The Dart Sass embedded compiler is now included as part of the primary Dart Sass distribution, rather than a separate executable. To use the embedded compiler, just run sass --embedded from any Sass executable (other than the pure JS executable).

    The Node.js embedded host will still be distributed as the sass-embedded package on npm. The only change is that it will now provide direct access to a sass executable with the same CLI as the sass package.

  • The Dart Sass embedded compiler now uses version 2.0.0 of the Sass embedded protocol. See the spec for a full description of the protocol, and the changelog for a summary of changes since version 1.2.0.

  • The Dart Sass embedded compiler now runs multiple simultaneous compilations in parallel, rather than serially.

v1.62.1

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  • Fix a bug where :has(+ &) and related constructs would drop the leading combinator.

v1.62.0

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  • Deprecate the use of multiple !global or !default flags on the same variable. This deprecation is named duplicate-var-flags.

  • Allow special numbers like var() or calc() in the global functions: grayscale(), invert(), saturate(), and opacity(). These are also native CSS filter functions. This is in addition to number values which were already allowed.

  • Fix a cosmetic bug where an outer rule could be duplicated after nesting was resolved, instead of re-using a shared rule.

v1.61.0

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  • Potentially breaking change: Drop support for End-of-Life Node.js 12.

  • Fix remaining cases for the performance regression introduced in 1.59.0.

Embedded Sass
  • The JS embedded host now loads files from the working directory when using the legacy API.

v1.60.0

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  • Add support for the pi, e, infinity, -infinity, and NaN constants in calculations. These will be interpreted as the corresponding numbers.

  • Add support for unknown constants in calculations. These will be interpreted as unquoted strings.

  • Serialize numbers with value infinity, -infinity, and NaN to calc() expressions rather than CSS-invalid identifiers. Numbers with complex units still can't be serialized.

v1.59.3

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  • Fix a performance regression introduced in 1.59.0.

  • The NPM release of 1.59.0 dropped support for Node 12 without actually indicating so in its pubspec. This release temporarily adds back support so that the latest Sass version that declares it supports Node 12 actually does so. However, Node 12 is now end-of-life, so we will drop support for it properly in an upcoming release.

v1.59.2

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  • No user-visible changes.

v1.59.1

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  • No user-visible changes.

v1.59.0

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Command Line Interface
  • Added a new --fatal-deprecation flag that lets you treat a deprecation warning as an error. You can pass an individual deprecation ID (e.g. slash-div) or you can pass a Dart Sass version to treat all deprecations initially emitted in that version or earlier as errors.

  • New --future-deprecation flag that lets you opt into warning for use of certain features that will be deprecated in the future. At the moment, the only option is --future-deprecation=import, which will emit warnings for Sass @import rules, which are not yet deprecated, but will be in the future.

Dart API
  • New Deprecation enum, which contains the different current and future deprecations used by the new CLI flags.

  • The compile methods now take in fatalDeprecations and futureDeprecations parameters, which work similarly to the CLI flags.

v1.58.3

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  • No user-visible changes.

v1.58.2

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Command Line Interface
  • Add a timestamp to messages printed in --watch mode.

  • Print better calc()-based suggestions for /-as-division expression that contain calculation-incompatible constructs like unary minus.

v1.58.1

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  • Emit a unitless hue when serializing hsl() colors. The deg unit is incompatible with IE, and while that officially falls outside our compatibility policy, it's better to lean towards greater compatibility.

v1.58.0

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  • Remove sourcemap comments from Sass sources. The generated sourcemap comment for the compiled CSS output remains unaffected.

  • Fix a bug in @extend logic where certain selectors with three or more combinators were incorrectly considered superselectors of similar selectors with fewer combinators, causing them to be incorrectly trimmed from the output.

  • Produce a better error message for a number with a leading + or -, a decimal point, but no digits.

  • Produce a better error message for a nested property whose name starts with --.

  • Fix a crash when a selector ends in an escaped backslash.

  • Add the relative length units from CSS Values 4 and CSS Contain 3 as known units to validate bad computation in calc.

Command Line Interface
  • The --watch flag will now track loads through calls to meta.load-css() as long as their URLs are literal strings without any interpolation.

v1.57.1

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  • No user-visible changes.

v1.57.0

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  • Add a split($string, $separator, $limit: null) function to sass:string that splits a string into separate substrings based on a separator string.
JavaScript API
  • Potentially breaking bug fix: Custom functions in both the modern and legacy API now properly reject signatures with whitespace between the function name and parentheses.

  • Custom functions in the legacy API now allow signatures with whitespace before the function name, to match a bug in Node Sass.

Dart API
  • Potentially breaking bug fix: Callable.fromSignature() and AsyncCallable.fromSignature() now reject signatures with whitespace between the function name and parentheses.

v1.56.2

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Embedded Sass

v1.56.1

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Embedded Sass
  • Importer results now validate that contents is actually a string and whether sourceMapUrl is an absolute URL.

v1.56.0

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  • Potentially breaking change: To match the CSS spec, SassScript expressions beginning with not or ( are no longer supported at the beginning of parenthesized sections of media queries. For example,

    @​media (width >= 500px) and (not (grid))

    will now be emitted unchanged, instead of producing

    @​media (width >= 500px) and (false)

    See the Sass website for details.

  • Potentially breaking bug fix: Angle units like rad or turn are now properly converted to equivalent deg values for hsl(), hsla(), adjust-hue(), color.adjust(), and color.change().

    See the Sass website for details.

  • Fix indentation for selectors that span multiple lines in a @media query.

  • Emit a deprecation warning when passing $alpha values with units to color.adjust() or color.change(). This will be an error in Dart Sass 2.0.0.

    See the Sass website for details.

  • Emit a deprecation warning when passing a $weight value with no units or with units other than % to color.mix(). This will be an error in Dart Sass 2.0.0.

    See the Sass website for details.

  • Emit a deprecation warning when passing $n values with units to list.nth() or list.set-nth(). This will be an error in Dart Sass 2.0.0.

    See the Sass website for details.

  • Improve existing deprecation warnings to wrap /-as-division suggestions in calc() expressions.

  • Properly mark the warning for passing numbers with units to random() as a deprecation warning.

  • Fix a bug where @extend could behave unpredicatably when used along with meta.load-css() and shared modules that contained no CSS themselves but loaded CSS from other modules.

Dart API
  • Emit a deprecation warning when passing a sassIndex with units to Value.sassIndexToListIndex(). This will be an error in Dart Sass 2.0.0.
JS API
  • Importer results now validate whether contents is actually a string type.

  • Importer result argument errors are now rendered correctly.

v1.55.0

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  • Potentially breaking bug fix: Sass numbers are now universally stored as 64-bit floating-point numbers, rather than sometimes being stored as integers. This will generally make arithmetic with very large numbers more reliable and more consistent across platforms, but it does mean that numbers between nine quadrillion and nine quintillion will no longer be represented with full accuracy when compiling Sass on the Dart VM.

  • Potentially breaking bug fix: Sass equality is now properly transitive. Two numbers are now considered equal (after doing unit conversions) if they round to the same 1e-11th. Previously, numbers were considered equal if they were within 1e-11 of one another, which led to some circumstances where $a == $b and $b == $c but $a != $b.

  • Potentially breaking bug fix: Various functions in sass:math no longer treat floating-point numbers that are very close (but not identical) to integers as integers. Instead, these functions now follow the floating-point specification exactly. For example, math.pow(0.000000000001, -1) now returns 1000000000000 instead of Infinity.

  • Emit a deprecation warning for $a -$b and $a +$b, since these look like they could be unary operations but they're actually parsed as binary operations. Either explicitly write $a - $b or $a (-$b). See https://sass-lang.com/d/strict-unary for more details.

Dart API
  • Add an optional argumentName parameter to SassScriptException() to make it easier to throw exceptions associated with particular argument names.

  • Most APIs that previously returned num now return double. All APIs continue to accept num, although in Dart 2.0.0 these APIs will be changed to accept only double.

JS API
  • Fix a bug in which certain warning spans would not have their properties accessible by the JS API.

v1.54.9

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  • Fix an incorrect span in certain @media query deprecation warnings.

v1.54.8

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  • No user-visible changes.

v1.54.7

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  • Add support for 32-bit ARM releases on Linux.

v1.54.6

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  • Fix a bug where a @media query could be incorrectly omitted from a stylesheet if it had multiple levels of nested @media queries within it and the inner queries were mergeable but the outer query was not.

v1.54.5

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  • Properly consider a ~ c to be a superselector of a ~ b ~ c and a + b + c.

  • Properly consider b > c to be a superselector of a > b > c, and similarly for other combinators.

  • Properly calculate specificity for selector pseudoclasses.

  • Deprecate use of random() when $limit has units to make it explicit that random() currently ignores units. A future version will no longer ignore units.

  • Don't throw an error when the same module is @forwarded multiple times through a configured module.

Embedded Sass
  • Rather than downloading the embedded compiler for the local platform on install, the sass-embedded npm package now declares optional dependencies on platform-specific embedded compiler packages.

v1.54.4

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  • Improve error messages when passing incorrect units that are also out-of-bounds to various color functions.

v1.54.3

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  • Release a native ARM64 executable for Mac OS.

v1.54.2

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  • No user-visible changes.

v1.54.1

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  • When unifying selectors for @extend and selector.unify(), ensure that :root, :scope, :host, and :host-context only appear at the beginning of complex selectors.

v1.54.0

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  • Deprecate selectors with leading or trailing combinators, or with multiple combinators in a row. If they're included in style rules after nesting is resolved, Sass will now produce a deprecation warning and, in most cases, omit the selector. Leading and trailing combinators can still be freely used for nesting purposes.

    See https://sass-lang.com/d/bogus-combinators for more details.

  • Add partial support for new media query syntax from Media Queries Level 4. The only exception are logical operations nested within parentheses, as these were previously interpreted differently as SassScript expressions.

    A parenthesized media condition that begins with not or an opening parenthesis now produces a deprecation warning. In a future release, these will be interpreted as plain CSS instead.

  • Deprecate passing non-deg units to color.hwb()'s $hue argument.

  • Fix a number of bugs when determining whether selectors with pseudo-elements are superselectors.

  • Treat * as a superselector of all selectors.

Dart API
  • Add a top-level fakeFromImport() function for testing custom importers that use AsyncImporter.fromImport.
JS API
  • Add a charset option that controls whether or not Sass emits a @charset/BOM for non-ASCII stylesheets.

  • Fix Sass npm package types for TS 4.7+ Node16 and NodeNext module resolution.

v1.53.0

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  • Add support for calling var() with an empty second argument, such as var(--side, ).
JS API
  • Fix a bug where meta.load-css() would sometimes resolve relative URLs incorrectly when called from a mixin using the legacy JS API.
Embedded Sass
  • Respect npm's proxy settings when downloading the embedded Sass compiler.

v1.52.3

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  • Fix crash when trailing loud comments (/* ... */) appear twice in a row across two different imports which themselves imported the same file each.

v1.52.2

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  • Preserve location of trailing loud comments (/* ... */) instead of pushing the comment to the next line.

v1.52.1

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Command Line Interface
  • Fix a bug where --watch mode would close immediately in TTY mode. This was caused by our change to close --watch when stdin was closed outside of TTY mode, which has been reverted for now while we work on a fix.

v1.52.0

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  • Add support for arbitrary modifiers at the end of plain CSS imports, in addition to the existing supports() and media queries. Sass now allows any sequence of identifiers of functions after the URL of an import for forwards compatibility with future additions to the CSS spec.

  • Fix an issue where source locations tracked through variable references could potentially become incorrect.

  • Fix a bug where a loud comment in the source can break the source map when embedding the sources, when using the command-line interface or the legacy JS API.

JS API
  • SassNumber.assertUnit() and SassNumber.assertNoUnits() now correctly return the number called on when it passes the assertion.

v1.51.0

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  • Potentially breaking change: Change the order of maps returned by map.deep-merge() to match those returned by map.merge(). All keys that appeared in the first map will now be listed first in the same order they appeared in that map, followed by any new keys added from the second map.

  • Improve the string output of some AST nodes in error messages.

v1.50.1

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Embedded Sass
  • The JS embedded host and the embedded compiler will now properly avoid resolving imports relative to the current working directory unless '.' is passed as a load path.

  • Fix a bug in the JS embedded host's implementation of the legacy JS API where imports that began with / could crash on Windows.

v1.50.0

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  • @extend now treats [:where()][:where()] the same as :is().
Command Line Interface
  • Closing the standard input stream will now cause the --watch command to stop running.
Embedded Sass
  • Fix a bug where the JS embedded host crashed when invoking a legacy importer after resolving a relative filesystem import.

  • Improve error messages when returning non-Object values from legacy importers.

v1.49.11

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  • Add support for 64-bit ARM releases on Linux.
Embedded Sass
  • The embedded compiler now correctly sets the id field for all OutboundMessages.

v1.49.10

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  • Quiet deps mode now silences compiler warnings in mixins and functions that are defined in dependencies even if they're invoked from application stylesheets.

  • In expanded mode, Sass will now emit colors using rgb(), rbga(), hsl(), and hsla() function notation if they were defined using the corresponding notation. As per our browser support policy, this change was only done once 95% of browsers were confirmed to support this output format, and so is not considered a breaking change.

    Note that this output format is intended for human readability and not for interoperability with other tools. As always, Sass targets the CSS specification, and any tool that consumes Sass's output should parse all colors that are supported by the CSS spec.

  • Fix a bug in which a color written using the four- or eight-digit hex format could be emitted as a hex color rather than a format with higher browser compatibility.

  • Calculations are no longer simplified within supports declarations

v1.49.9

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Embedded Sass
  • Fixed a bug where the legacy API could crash when passed an empty importer list.

v1.49.8

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  • Fixed a bug where some plain CSS imports would not be emitted.
JS API
  • Fix a bug where inspecting the Sass module in the Node.js console crashed on Node 17.
Embedded Sass
  • Fix a bug where source map URLs were incorrectly generated when passing importers to the legacy API.

v1.49.7

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Embedded Sass
  • First stable release the sass-embedded npm package that contains the Node.js Embedded Host.

  • First stable release of the sass_embedded pub package that contains the Embedded Dart Sass compiler.

v1.49.6

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  • No user-visible changes.

v1.49.5

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  • No user-visible changes.

v1.49.4

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  • No user-visible changes.

v1.49.3

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  • No user-visible changes.

v1.49.2

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  • No user-visible changes.

v1.49.1

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  • Add support for 64-bit ARM releases on Linux.
Embedded Sass
  • The embedded compiler now correctly sets the id field for all OutboundMessages.

v1.49.0

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  • Fix a bug in string.insert with certain negative indices.
JS API
  • Add support for the sourceMapIncludeSources option in the new JS API.
TypeScript Declarations
  • Fix a bug where LegacyPluginThis.options.linefeed was typed to return abbreviations when it actually returned literal linefeed characters.

v1.48.0

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JS API
  • Potentially breaking bug fix: Match the specification of the new JS API by setting LegacyResult.map to undefined rather than null.
TypeScript Declarations
  • Add a declaration for the NULL constant.

v1.47.0

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JS API
TypeScript Declarations
  • Add declarations for the TRUE and FALSE constants.

v1.46.0

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JS API
  • Potentially breaking bug fix: Match the specification of the new JS API by passing undefined rather than null to Logger.warn() for an unset span.
TypeScript Declarations
  • Add a declaration for the LegacyPluginThis.options.context field.

  • Update the definition of LegacyAsyncFunction to include explicit definitions with zero through six arguments before the done parameter. This makes it possible for TypeScript users to pass in callbacks that take a specific number of arguments, rather than having to declare a callback that takes an arbitrary number.

  • Add a declaration for types.Error, a legacy API class that can be returned by asynchronous functions to signal asynchronous errors.

  • Add a LegacyAsyncFunctionDone type for the done callback that's passed to LegacyAsyncFunction.

v1.45.2

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JS API
  • Potentially breaking bug fix: Change the default value of the separator parameter for new SassArgumentList() to ',' rather than null. This matches the API specification.

v1.45.1

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  • Potentially breaking bug fix: Properly parse custom properties in @supports conditions. Note that this means that SassScript expressions on the right-hand side of custom property @supports queries now need to be interpolated, as per https://sass-lang.com/d/css-vars.

  • Potentially breaking bug fix: Fix a bug where inspect() was not properly printing nested, empty, bracketed lists.

v1.45.0

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JS API

This release includes an entirely new JavaScript API, designed to be more idiomatic, performant, and usable. The old API will continue to be supported until Dart Sass 2.0.0, but it is now considered deprecated and should be avoided for new code.

The new API includes:

  • compile() and compileAsync() functions that take Sass file paths and return the result of compiling them to CSS. The async function returns a Promise rather than using a callback-based API.

  • compileString() and compileStringAsync() functions that take a string of Sass source and compiles it to CSS. As above, the async function returns a Promise.

  • A new importer API that more closely matches the Sass specification's logic for resolving loads. This makes it much easier for Sass to cache information across @import and @use rules, which substantially improves performance for applications that rely heavily on repeated @imports.

  • A new custom function API, including much more usable JS representations of Sass value types complete with type-assertion functions, easy map and list lookups, and compatibility with the [immutable][immutable] package. Unlike in the legacy API, function callbacks now take one argument which contains an array of Sass values (rather than taking a separate JS argument for each Sass argument).

For full documentation of this API, please see the Sass website.

This release also adds TypeScript type definitions.

v1.44.0

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  • Suggest calc() as an alternative in /-as-division deprecation messages.
Dart API
  • Add SassNumber.convert() and SassNumber.convertValue(). These work like SassNumber.coerce() and SassNumber.coerceValue(), except they don't treat unitless numbers as universally compatible.

  • Fix a bug where SassNumber.coerceToMatch() and SassNumber.coerceValueToMatch() wouldn't coerce single-unit numbers to match unitless numbers.

v1.43.5

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  • Fix a bug where calculations with different operators were incorrectly considered equal.

  • Properly parse attribute selectors with empty namespaces.

JS API
  • Print more detailed JS stack traces. This is mostly useful for the Sass team's own debugging purposes.

v1.43.4

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JS API
  • Fix a bug where the logger option was ignored for the render() function.

v1.43.3

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  • Improve performance.

v1.43.2

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  • Improve the error message when the default namespace of a @use rule is not a valid identifier.

v1.42.1

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  • Fix a bug where Sass variables and function calls in calculations weren't being resolved correctly if there was a parenthesized interpolation elsewhere in the file.

v1.42.0

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  • min() and max() expressions are once again parsed as calculations as long as they contain only syntax that's allowed in calculation expressions. To avoid the backwards-compatibility issues that were present in 1.40.0, they now allow unitless numbers to be mixed with numbers with units just like the global min() and max() functions. Similarly, + and - operations within min() and max() functions allow unitless numbers to be mixed with numbers with units.

v1.41.1

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  • Preserve parentheses around var() functions in calculations, because they could potentially be replaced with sub-expressions that might need to be parenthesized.

v1.41.0

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  • Calculation values can now be combined with strings using the + operator. This was an error in 1.40.0, but this broke stylesheets that were relying on $value + "" expressions to generically convert values to strings. (Note that the Sass team recommends the use of "#{$value}" or inspect($value) for that use-case.)

  • The selector.unify() function now correctly returns null when one selector is a :host or :host-context and the other is a selector that's guaranteed to be within the current shadow DOM. The @extend logic has been updated accordingly as well.

  • Fix a bug where extra whitespace in min(), max(), clamp(), and calc() expressions could cause bogus parse errors.

  • Fix a bug where the right-hand operand of a - in a calculation could incorrectly be stripped of parentheses.

Dart API
  • SassCalculation.plus() now allows SassString arguments.

v1.40.1

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  • Potentially breaking bug fix: min() and max() expressions outside of calculations now behave the same way they did in 1.39.2, returning unquoted strings if they contain no Sass-specific features and calling the global min() and max() functions otherwise. Within calculations, they continue to behave how they did in 1.40.0.

    This fixes an unintended breaking change added in 1.40.0, wherein passing a unitless number and a number without units to min() or max() now produces an error. Since this breakage affects a major Sass library, we're temporarily reverting support for min() and max() calculations while we work on designing a longer-term fix.

v1.40.0

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  • Add support for first-class calc() expressions (as well as clamp() and plain-CSS min() and max()). This means:

    • calc() expressions will be parsed more thoroughly, and errors will be highlighted where they weren't before. This may break your stylesheets, but only if they were already producing broken CSS.

    • calc() expressions will be simplified where possible, and may even return numbers if they can be simplified away entirely.

    • calc() expressions that can't be simplified to numbers return a new data type known as "calculations".

    • Sass variables and functions can now be used in calc() expressions.

    • New functions meta.calc-name() and meta.calc-args() can now inspect calculations.

Dart API
  • Add a new value type, SassCalculation, that represents calculations.

  • Add new CalculationOperation, CalculationOperator, and CalculationInterpolation types to represent types of arguments that may exist as part of a calculation.

  • Add a new Value.assertCalculation() method.

  • Add a new Number.hasCompatibleUnits() method.

v1.39.2

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  • Fix a bug where configuring with @use ... with would throw an error when that variable was defined in a module that also contained @forward ... with.

v1.39.1

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  • Partial fix for a bug where @at-root does not work properly in nested imports that contain @use rules. If the only @use rules in the nested import are for built-in modules, @at-root should now work properly.

v1.39.0

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JS API
  • Add a charset option that controls whether or not Sass emits a @charset/BOM for non-ASCII stylesheets.

v1.38.2

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  • No user-visible changes

v1.38.1

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  • No user-visible changes

v1.38.0

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  • In expanded mode, emit characters in Unicode private-use areas as escape sequences rather than literal characters.

  • Fix a bug where quotes would be omitted for an attribute selector whose value was a single backslash.

  • Properly consider numbers that begin with . as "plain CSS" for the purposes of parsing plain-CSS min() and max() functions.

  • Allow if to be used as an unquoted string.

  • Properly parse backslash escapes within url() expressions.

  • Fix a couple bugs where @extends could be marked as unsatisfied when multiple identical @extends extended selectors across @use rules.

Command Line Interface
  • Strip CRLF newlines from snippets of the original stylesheet that are included in the output when an error occurs.
JS API
  • Don't crash when a Windows path is returned by a custom Node importer at the same time as file contents.

  • Don't crash when an error occurs in a stylesheet loaded via a custom importer with a custom URL scheme.

Dart API
  • Add a SassArgumentList.keywordsWithoutMarking getter to access the keyword arguments of an argument list without marking them accessed.

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