fix(deps): update dependency sass to v1.81.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sass	1.52.1 -> 1.81.0

---

Release Notes

sass/dart-sass (sass)

v1.81.0

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• Fix a few cases where deprecation warnings weren't being emitted for global
  built-in functions whose names overlap with CSS calculations.

• Add support for the CSS round() calculation with a single argument, as long
  as that argument might be a unitless number.

v1.80.7

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Embedded Host

• Don't treat 0 as undefined for the green and blue channels in the
  LegacyColor constructor.

v1.80.6

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Command-Line Interface

• Make @parcel/watcher an optional dependency so this can still be installed
  on operating systems where it's unavailable.

v1.80.5

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Embedded Host

• Don't produce phantom @import deprecations when using an importer with the
  legacy API.

v1.80.4

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• No user-visible changes.

v1.80.3

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• Fix a bug where @import url("...") would crash in plain CSS files.

• Improve consistency of how warnings are emitted by different parts of the
  compiler. This should result in minimal user-visible changes, but different
  types of warnings should now respond more reliably to flags like --quiet,
  --verbose, and --silence-deprecation.

v1.80.2

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• Fix a bug where deprecation warnings were incorrectly emitted for the
  plain-CSS invert() function.

v1.80.1

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• Fix a bug where repeated deprecation warnings were not automatically limited.

v1.80.0

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• @import is now officially deprecated, as are global built-in functions that
  are available within built-in modules. See the Sass blog post for more
  details on the deprecation process.

Embedded Host

• Fix an error that would sometimes occur when deprecation warnings were
  emitted when using a custom importer with the legacy API.

v1.79.6

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• Fix a bug where Sass would add an extra */ after loud comments with
  whitespace after an explicit */ in the indented syntax.

• Potentially breaking bug fix: Adding text after an explicit */ in the
  indented syntax is now an error, rather than silently generating invalid CSS.

Embedded Host

• Properly export the SassBoolean type.

v1.79.5

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• Changes to how selector.unify() and @extend combine selectors:

  • The relative order of pseudo-classes (like :hover) and pseudo-elements
    (like ::before) within each original selector is now preserved when
    they're combined.

  • Pseudo selectors are now consistently placed at the end of the combined
    selector, regardless of which selector they came from. Previously, this
    reordering only applied to pseudo-selectors in the second selector.

• Tweak the color transformation matrices for OKLab and OKLCH to match the
  newer, more accurate values in the CSS spec.

• Fix a slight inaccuracy case when converting to srgb-linear and
  display-p3.

• Potentially breaking bug fix: math.unit() now wraps multiple denominator
  units in parentheses. For example, px/(em*em) instead of px/em*em.

Command-Line Interface

• Use @parcel/watcher to watch the filesystem when running from JavaScript and
  not using --poll. This should mitigate more frequent failures users have
  been seeing since version 4.0.0 of Chokidar, our previous watching tool, was
  released.

JS API

• Fix SassColor.interpolate() to allow an undefined options parameter, as
  the types indicate.

Embedded Sass

• Properly pass missing color channel values to and from custom functions.

v1.79.4

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JS API

• Fix a bug where passing green or blue to color.change() for legacy
  colors would fail.

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

• The embedded compiler now supports version 1.2.0 of the embedded
  protocol.

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 us

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