# 6.7.1

- Fixed: `block-*-brace-*-before` CRLF (`\r\n`) warning positioning.
- Fixed: `no-descending-specificity` now does comparison of specificity using ints, rather than strings.
- Fixed: `selector-no-type` and `selector-type-case` now ignore non-standard keyframe selectors (e.g. within an SCSS mixin).
- Fixed: `selector-type-no-unknown` no longer reports fractional keyframe selectors.

# 6.7.0

- Added: `ignoreFunctions: []` option for `function-name-case`.
- Fixed: rules using `findFontFamily` util correctly interpret `<font-size>/<line-height>` values with unitless line-heights.
- Fixed: `indentation` better understands nested parentheticals that aren't just Sass maps and lists.
- Fixed: `no-unsupported-browser-features` message now clearly states that only *fully* supported features are allowed.
- Fixed: `selector-max-specificity` no longer reports that a selector with 11 elements or more has a higher specificity than a selector with a single classname.
- Fixed: `selector-type-no-unknown` no longer warns for complex keyframe selectors.

# 6.6.0

- Deprecated: `number-zero-length-no-unit`. Use `length-zero-no-unit` instead.
- Deprecated: `property-*-blacklist` and `property-*-whitelist`. Use `declaration-property-*-blacklist` and `declaration-property-*-whitelist` instead.
- Deprecated: `-v` and `--verbose` CLI flags. Use `-f verbose` or `--formatter verbose` instead.
- Deprecated: `stylelint.util.styleSearch()`. Use the external module [style-search](https://github.com/davidtheclark/style-search) instead.
- Added: option `ignorePath` (for JS) and `--ignore-path` (for CLI).
- Added: `-h` alias for `--help` CLI flag.
- Added: `at-rule-blacklist` rule.
- Added: `at-rule-name-newline-after` rule.
- Added: `at-rule-whitelist` rule.
- Added: `ignore: "blockless-group"` option for `at-rule-empty-line-before`.
- Added: `ignoreAtRules: []` option for `at-rule-empty-line-before`.
- Added: `function-blacklist` now accepts regular expressions.
- Added: `function-whitelist` now accepts regular expressions.
- Fixed: crash when tty columns is reported as zero, which happened when running stylelint on Travis CI in OSX.
- Fixed: selector-targeting rules ignore Less mixins and extends.
- Fixed: `at-rule-name-newline-after` now correctly accepts one *or more* newlines.
- Fixed: `declaration-block-semicolon-newline-before` now correctly accepts one *or more* newlines.
- Fixed: `function-url-quotes` ignores values containing `$sass` and `@less` variables.
- Fixed: `function-whitespace-after` ignores `postcss-simple-vars`-style interpolation.
- Fixed: `indentation` better understands nested parentheticals, like nested Sass maps.
- Fixed: `no-extra-semicolons` reports errors on the correct line.
- Fixed: `selector-combinator-space-*` rules now ignore escaped combinator-like characters.
- Fixed: `selector-type-no-unknown` ignores non-standard usage of percentage keyframe selectors (e.g. within an SCSS mixin).
- Fixed: `value-keyword-case` now ignores custom idents of properties `animation`, `font`, `list-style`.

# 6.5.1

- Deprecated: `"emptyLineBefore"` option for `declaration-block-properties-order`. If you use this option, please consider creating a plugin for the community. See the [release planning](/docs/user-guide/release-planning.md) document for more details.
- Deprecated: `"single-where-required"`, `"single-where-recommended"`, `"single-unless-keyword"`, `"double-where-required"`, `"double-where-recommended"` and `"double-unless-keyword"` options for `font-family-name-quotes`. Instead, use the `"always-unless-keyword"`, `always-where-recommended` or `always-where-required` options together with the `string-quotes` rule.
- Deprecated: `"single"`, `"double"` and `"none"` options for `function-url-quotes`. Instead, use the `"always"` or `"never"` options together with the `string-quotes` rule.
- Deprecated: `"hierarchicalSelectors"` option for `indentation`.  If you use this option, please consider creating a plugin for the community. See the [release planning](/docs/user-guide/release-planning.md) document for more details.
- Fixed: the string formatter no longer errors on non-rule errors.
- Fixed: `selector-list-comma-*` rules now ignore Less mixins.
- Fixed: `selector-max-compound-selectors` no longer errors on Less mixins.
- Fixed: `selector-type-no-unknown` now ignores all *An+B notation* and linguistic pseudo-classes.
- Fixed: `selector-type-no-unknown` now ignores obsolete HTML tags and `<hgroup>`.

# 6.5.0

- Added: `selector-max-compound-selectors` rule.
- Fixed: `babel-polyfill` removed so it doesn't clash with other processes using `babel-polyfill`.
- Fixed: `selector-type-case` and `selector-type-no-unknown` rules now ignore SCSS placeholder selectors.

# 6.4.2

- Fixed: `selector-pseudo-class-case`, `selector-pseudo-class-no-unknown`, `selector-pseudo-element-case`, `selector-pseudo-element-no-unknown` rules now ignore SCSS variable interpolation.
- Fixed: `selector-type-no-unknown` now ignores nested selectors and keyframe selectors.

# 6.4.1

- Fixed: `shorthand-property-no-redundant-values` now ignores `background`, `font`, `border`, `border-top`, `border-bottom`, `border-left`, `border-right`, `list-style`, `transition` properties.
- Fixed: `unit-no-unknown` now ignores hex colors.

# 6.4.0

- Added: `keyframe-declaration-no-important` rule.
- Added: `selector-attribute-operator-blacklist` rule.
- Added: `selector-attribute-operator-whitelist` rule.
- Added: `selector-pseudo-class-no-unknown` rule.
- Added: `selector-type-no-unknown` rule.
- Fixed: string formatter no longer errors on multi-byte `message`.
- Fixed: catch errors thrown by `postcss-selector-parser` and register them as PostCSS warnings, providing a better UX for editor plugins.
- Fixed: some rules now better handle case insensitive CSS identifiers.
- Fixed: `font-family-name-quotes`, `media-feature-no-missing-punctuation`, `media-query-list-comma-newline-after`, `media-query-list-comma-newline-before`, `media-query-list-comma-space-after` and `media-query-list-comma-space-before` rules now better ignore SCSS, Less variables and nonstandard at-rules.
- Fixed: `no-unknown-animations` now ignores `ease` value.
- Fixed: `unit-blacklist`, `unit-case`, `unit-no-unknown`, `unit-whitelist` now better accounts interpolation.
- Fixed: `unit-no-unknown` no longer breaks Node 0.12 (because we've included the Babel polyfill).
- Fixed: `value-keyword-case` now ignores custom idents of properties `animation-name`, `counter-increment`, `font-family`, `grid-row`, `grid-column`, `grid-area`, `list-style-type`.
- Fixed: wrong example for `always-multi-line` in rule `block-opening-brace-newline-before` documentation.

# 6.3.3

- Fixed: `block-closing-brace-newline-before` no longer delivers false positives for extra semicolon.
- Fixed: `declaration-block-no-ignored-properties` now detects use of `vertical-align` with block-level elements.
- Fixed: `font-family-name-quotes` is now case insensitive when hunting for font-family properties.
- Fixed: `number-zero-length-no-unit` now ignores `deg`, `grad`, `turn` and `rad` units.
- Fixed: `selector-no-type` does a better job when ignoring descendant and compound selectors.

# 6.3.2

- Fixed: `shorthand-property-no-redundant-values` now handles uppercase values properly.

# 6.3.1

- Fixed: `declaration-block-no-ignored-properties` now longer crashes on nested rules.

# 6.3.0

- Deprecated: support for plugin rule names that aren't namespaced i.e. only `your-namespace/your-rule-name` rule names are supported. If your plugin provides only a single rule or you can't think of a good namespace, you can simply use `plugin/my-rule`).
- Added: support for plugins that provides an array of rules.
- Added: support for extracting and linting CSS from within HTML sources.
- Added: `--stdin-filename` option to CLI.
- Added: `at-rule-name-space-after` rule.
- Added: `no-extra-semicolons` rule.
- Added: `selector-attribute-operator-space-after` rule.
- Added: `selector-attribute-operator-space-before` rule.
- Added: `selector-max-empty-lines` rule.
- Added: `selector-pseudo-element-no-unknown` rule.
- Added: flexible support for end-of-line comments in `at-rule-semicolon-newline-after`, `block-opening-brace-newline-after`, and `declaration-block-semicolon-newline-after`.
- Fixed: string and verbose formatters no longer use an ambiguous colour schemes.
- Fixed: string formatter no longer outputs an empty line if there are no problems.
- Fixed: all rules now handle case insensitive CSS identifiers.
- Fixed: `function-comma-newline-after` now allows end-of-line comments.
- Fixed: `function-url-quotes` now ignores spaces within `url()`.
- Fixed: `no-descending-specificity` now ignores trailing colons within selectors.
- Fixed: `no-indistinguishable-colors` now ignores keyword color names within `url()`.
- Fixed: `number-max-precision` now ignores `@import` at-rules and `url()` functions.
- Fixed: `selector-class-pattern` and `selector-id-pattern` rules now ignore SCSS variable interpolation.
- Fixed: `value-list-comma-*` rules now ignore SCSS maps.

# 6.2.2

- Deprecated: `stylelint.utils.cssWordIsVariable()` as non-standard syntax utils are now defensive.
- Fixed: `declaration-colon-*` rules now ignore SCSS lists.
- Fixed: `font-weight-notation` now ignores SCSS interpolation.
- Fixed: `rule-nested-empty-line-before` now ignores Less blockless rules (mixin and extend calls).

# 6.2.1

- Fixed: more problems with exposed `stylelint.createRuleTester`.

# 6.2.0

- Added: `selector-no-qualifying-type` rule.
- Fixed: `number-leading-zero` will not check `@import` at-rules.
- Fixed: `selector-class-pattern` now ignores non-ouputting Less mixin definitions and called Less mixins.
- Fixed: `value-keyword-case` now accounts for camelCase keywords (e.g. `optimizeSpeed`, `optimizeLegibility` and `geometricPrecision`) when the `lower` option is used.
- Fixed: `testUtils` and `stylelint.createRuleTester` module mistakes.

# 6.1.1

- Fixed: documentation links to `selector-pseudo-class-parentheses-space-inside` and `selector-attribute-brackets-space-inside`.

# 6.1.0

- Added: support for `.stylelintignore` file.
- Added: warning message in output when a file is ignored.
- Added: `comment-word-blacklist` rule.
- Added: `selector-attribute-brackets-space-inside` rule.
- Added: `selector-pseudo-class-parentheses-space-inside` rule.
- Added: `shorthand-property-no-redundant-values` rule.
- Added: `ignoreKeywords` option for `value-keyword-case`.
- Fixed: CRLF (`\r\n`) warning positioning in `string-no-newline`.
- Fixed: parsing problems when using `///`-SassDoc-style comments.
- Fixed: `max-empty-lines` places warning at the end of the violating newlines to avoid positioning confusions.

# 6.0.3

- Fixed: CRLF (`\r\n`) warning positioning in `max-empty-lines` and `function-max-empty-lines`.

# 6.0.2

- Fixed: `CssSyntaxError` sets `errored` on output to `true`.

# 6.0.1

- Fixed: `function-name-case` now accounts for camelCase function names (e.g. `translateX`, `scaleX` etc) when the `lower` option is used.

# 6.0.0

- Changed: `CssSyntaxError` is no longer thrown but reported alongside warnings.
- Added: new look for standard formatter and support for arbitrary severity names.
- Added: exposed `stylelint.utils.cssWordIsVariable()`.
- Added: `at-rule-name-case` rule.
- Added: `function-name-case` rule.
- Added: `property-case` rule.
- Added: `selector-pseudo-class-case` rule.
- Added: `selector-pseudo-element-case` rule.
- Added: `unit-case` rule.
- Added: `value-keyword-case` rule.
- Added: `indentClosingBrace` option to `indentation`.
- Added: `indentInsideParens` option to `indentation`.
- Added: `consecutive-duplicates` option for `declaration-block-no-duplicate-properties` rule.
- Fixed: `block-no-empty` no longer delivers false positives for less syntax.
- Fixed: `declaration-block-trailing-semicolon` better understands nested at-rules.
- Fixed: `number-zero-length-no-unit` now work with `q` unit and ignores `s`, `ms`, `kHz`, `Hz`, `dpcm`, `dppx`, `dpi` units

# 5.4.0

- Added: `unit-no-unknown` rule.
- Fixed: `no-descending-specificity` no longer gets confused when the last part of a selector is a compound selector.
- Fixed: regression causing `indentation` to complain about Sass maps.
- Fixed: `declaration-block-no-ignored-properties` now ignore `clear` for `position: absolute` and `position: relative` and does not ignore `float` on `display: table-*`.

# 5.3.0

- Added: (experimental) support for [Less](http://lesscss.org/) syntax.
- Added: support for [SugarSS](https://github.com/postcss/sugarss) syntax.
- Added: exposed `stylelint.createRuleTester()`.
- Added: `declaration-block-no-ignored-properties` rule.
- Added: `function-max-empty-lines` rule.
- Added: `function-url-data-uris` rule.
- Fixed: `block-closing-brace-newline-after` accepts single-line comments immediately after the closing brace.
- Fixed: `block-closing-brace-newline-after` use of "single space", rather than "newline", in its messages.
- Fixed: `font-weight-notation` now ignores `initial` value.
- Fixed: `function-*` rules should all now ignore all Sass maps and lists.
- Fixed: `function-calc-no-unspaced-operator` accepts newlines.
- Fixed: `function-comma-space-after`, `function-comma-space-before`, `function-parentheses-newline-inside` and `function-parentheses-space-inside` now ignore SCSS maps.
- Fixed: `max-line-length` options validation.
- Fixed: `no-unknown-animations` now ignores `none`, `initial`, `inherit`, `unset` values.
- Fixed: `property-value-blacklist` and `-whitelist` no longer error on properties without a corresponding list entry.
- Fixed: `selector-class-pattern` now ignores selectors with Sass interpolation.
- Fixed: `selector-id-pattern` now ignores selectors with Sass interpolation.
- Fixed: `selector-no-id` now ignores keyframe selectors.
- Fixed: `unit-blacklist` and `unit-whitelist` now ignores `url` functions.

# 5.2.1

- Fixed: `function-calc-no-unspaced-operator` now better ignores non-`calc` functions.
- Fixed: `no-descending-specificity` no longer delivers false positives after second run in Atom linter.
- Fixed: `stylelint-disable-rule` imported correctly.

# 5.2.0

- Added: `at-rule-semicolon-newline-after` rule.
- Added: `no-indistinguishable-colors` rule.
- Added: `stylelint-disable-reason` rule.
- Fixed: `declaration-bang-space-*` understands arbitrary bang declarations (e.g. `!default`).
- Fixed: `font-weight-notation` now ignore `inherit` value.
- Fixed: `indentation` treats `@nest` at-rules like regular rules with selectors.
- Fixed: `no-duplicate-selectors` contextualizes selectors by all at-rules, not just media queries.
- Fixed: `no-duplicate-selectors` no longer delivers false positives after second run in Atom linter.
- Fixed: `no-duplicate-selectors` no longer delivers false positives with descendant combinators.
- Fixed: `number-no-trailing-zeros` no longer delivers false positives in `url()` arguments.
- Fixed: `root-no-standard-properties` no longer delivers false positives inside the `:not()` pseudo-selector.
- Fixed: `selector-list-comma-*` rules no longer deliver false positives inside functional notation.

# 5.1.0

- Added: `selector-type-case` rule.
- Fixed: no more subtle configuration bug when using extends and plugins together in tangled ways.

# 5.0.1

- Fixed: `string-no-newline` no longer stumbles when there are comment-starting characters inside strings.

# 5.0.0

- Removed: `no-indistinguishable-colors` because its dependencies were unusable in Atom. (To be re-evaluated and re-added later.)
- Removed: `"warn": true` secondary option. Use `"severity": "warning"`, instead.
- Removed: `color-no-named` rule. Use the new `color-named` rule, with the `"never"` option instead.
- Removed: `declaration-block-no-single-line` rule. Use the new `block-no-single-line` rule instead.
- Removed: `rule-no-duplicate-properties` rule. Use the new `declaration-block-no-duplicate-properties` rule instead.
- Removed: `rule-no-shorthand-property-overrides` rule. Use the new `declaration-block-no-shorthand-property-overrides` rule instead.
- Removed: `rule-properties-order` rule. Use the new `declaration-block-properties-order` rule instead.
- Removed: `rule-trailing-semicolon` rule. Use the new `declaration-block-trailing-semicolon` rule instead.
- Removed `true` option for `emptyLineBefore` when using property groups in `rule-properties-order`. Use the new `"always"` or `"never"` option instead.
- Removed: `"always"` option for `font-weight-notation`. Use the new `always-where-possible` option instead.
- Added: support for overlapping `stylelint-disable` commands.
- Fixed: `max-nesting-depth` does not warn about blockless at-rules.
- Fixed: `function-comma-newline-after` and related rules consider input to be multi-line (applying to "always-multi-line", etc.) when the newlines are at the beginning or end of the input.
- Fixed: `no-indistinguishable-colors` no longer errors on color functions containing spaces e.g. `rgb(0, 0, 0)` -- but also removed the rule (see above).
- Fixed: `declaration-block-properties-order` no longer fails when an unspecified property comes before or after a specified property in a group with `emptyLineBefore: true`.
- Fixed: `indentation` no longer has false positives when there are empty lines within multi-line values.
- Fixed: `declaration-colon-*-after` no longer fail to do their job when you want a space or newline after the colon and instead there is no space at all.

# 4.5.1

- Fixed: `no-unsupported-browser-features` options now optional.
- Fixed: `no-duplicate-selectors` now ignores keyframe selectors.

# 4.5.0

- Deprecated: `"warn": true` secondary option. Use `"severity": "warning"`, instead.
- Deprecated: `color-no-named` rule. Use the new `color-named` rule, with the `"never"` option instead.
- Deprecated: `declaration-block-no-single-line` rule. Use the new `block-no-single-line` rule instead.
- Deprecated: `rule-no-duplicate-properties` rule. Use the new `declaration-block-no-duplicate-properties` rule instead.
- Deprecated: `rule-no-shorthand-property-overrides` rule. Use the new `declaration-block-no-shorthand-property-overrides` rule instead.
- Deprecated: `rule-properties-order` rule. Use the new `declaration-block-properties-order` rule instead.
- Deprecated: `rule-trailing-semicolon` rule. Use the new `declaration-block-trailing-semicolon` rule instead.
- Deprecated `true` option for `emptyLineBefore` when using property groups in `rule-properties-order`. Use the new `"always"` or `"never"` option instead.
- Deprecated: `"always"` option for `font-weight-notation`. Use the new `always-where-possible` option instead.
- Added: universal `severity` secondary option as a replacement for `"warn": true` to alter a rule's severity.
- Added: `block-no-single-line` rule.
- Added: `color-named` rule.
- Added: `declaration-block-no-duplicate-properties` rule.
- Added: `declaration-block-no-shorthand-property-overrides` rule.
- Added: `declaration-block-properties-order` rule.
- Added: `declaration-block-trailing-semicolon` rule.
- Added: `max-nesting-depth` rule.
- Added: `no-browser-hacks` rule.
- Added: `no-descending-specificity` rule.
- Added: `no-indistinguishable-colors` rule.
- Added: `no-unsupported-browser-features` rule.
- Added: `selector-max-specificity` rule.
- Added: `string-no-newline` rule.
- Added: `"always"` and `"never"` option to `rule-properties-order` `emptyLineBefore` when using property groups
- Added: `named-where-possible` option to `font-weight-notation`.
- Added: `unspecified: "bottomAlphabetical"` option to the `rule-properties-order` rule.
- Added: `ignoreAtRules: []` option to the `block-opening-brace-space-before` and `block-closing-brace-newline-after` rules.
- Added: support for using the nesting selector (`&`) as a prefix in `selector-no-type`.
- Added: `stylelint-disable-line` feature.
- Added: `withinComments`, `withinStrings`, and `checkStrings` options to `styleSearch`, and `insideString` property to the `styleSearch` match object.
- Added: `resolveNestedSelectors` option to the `selector-class-pattern` rule.
- Fixed: informative errors are thrown when `stylelint-disable` is misused.
- Fixed: `selector-no-vendor-prefix` no longer delivers two warnings on vendor-prefixed pseudo-elements with two colons, e.g. `::-moz-placeholder`.
- Fixed: `no-duplicate-selectors` rule now resolves nested selectors.
- Fixed: `font-weight-notation` does not throw false warnings when `normal` is used in certain ways.
- Fixed: `selector-no-*` and `selector-*-pattern` rules now ignore custom property sets.
- Fixed: nested selector handling for `no-duplicate-selectors`.
- Fixed: `selector-no-id` does not warn about Sass interpolation inside an `:nth-child()` argument.
- Fixed: handling of mixed line endings in `rule-nested-empty-line-before`, `rule-non-nested-empty-line-before`, `comment-empty-line-before` and `at-rule-empty-line-before`.
- Fixed: `number-leading-zero`, `function-comma-space-*`, and `declaration-colon-*` do not throw false positives in `url()` arguments.

# 4.4.0

- Added: `ignore: "relative"` option for `font-weight-notation`.
- Fixed: `declaration-colon-space/newline-before/after` rules now ignore scss maps.
- Fixed: `selector-list-comma-newline-after` allows `//` comments after the comma.

# 4.3.6

- Fixed: removed `console.log()`s in `property-unit-whitelist`.

# 4.3.5

- Fixed: removed `console.log()`s in `rule-properties-order`.

# 4.3.4

- Fixed: option normalization for rules with primary options that are arrays of objects, like `rule-properties-order`.
- Fixed: accuracy of warning positions are `//` comments when using SCSS parser.
- Fixed: `no-unknown-animations` ignores variables.
- Fixed: `no-unknown-animations` does not erroneously flag functions like `steps()` and `cubic-bezier()`.
- Fixed: clarified error message in `time-no-imperceptible`.
- Fixed: `font-family-name-quotes` and `font-weight-notation` ignore variables.
- Fixed: `media-feature-no-missing-punctuation` handles space-padded media features.
- Fixed: regression causing CLI `--config` relatives paths that don't start with `./` to be rejected.

# 4.3.3

- Fixed: again removed `stylelint.utils.ruleTester` because its dependencies broke things.

# 4.3.2

- Fixed: move `tape` to dependencies to support `testUtils`.

# 4.3.1

- Fixed: include `testUtils` in npm package whitelist.

# 4.3.0

- Added: `font-family-name-quotes` rule.
- Added: `font-weight-notation` rule.
- Added: `media-feature-no-missing-punctuation` rule.
- Added: `no-duplicate-selectors` rule.
- Added: `no-invalid-double-slash-comments` rule.
- Added: `no-unknown-animations` rule.
- Added: `property-value-blacklist` rule.
- Added: `property-value-whitelist` rule.
- Added: `time-no-imperceptible` rule.
- Added: `ignore: "descendant"` and `ignore: "compounded"` options for `selector-no-type`.
- Added: support for regular expression property identification in `property-blacklist`, `property-unit-blacklist`, `property-unit-whitelist`, `property-value-blacklist`, and `property-whitelist`.
- Added: better handling of vendor prefixes in `property-unit-blacklist` and `property-unit-whitelist`, e.g. if you enter `animation` it now also checks `-webkit-animation`.
- Added: support for using names of modules for the CLI's `--config` argument, not just paths.
- Added: `codeFilename` option to Node API.
- Added: exposed rules at `stylelint.rules` to make stylelint even more extensible.
- Added: brought `stylelint-rule-tester` into this repo, and exposed it at `stylelint.utils.ruleTester`.
- Fixed: bug in `rule-properties-order` empty line detection when the two newlines were separated
  by some other whitespace.
- Fixed: option parsing bug that caused problems when using the `"alphabetical"` primary option
  with `rule-properties-order`.
- Fixed: regard an empty string as a valid CSS code.
- Fixed: `ignoreFiles` handling of absolute paths.
- Fixed: `ignoreFiles` uses the `configBasedir` option to interpret relative paths.

# 4.2.0

- Added: support for custom messages with a `message` secondary property on any rule.
- Fixed: CLI always ignores contents of `node_modules` and `bower_components` directories.
- Fixed: bug preventing CLI from understanding absolute paths in `--config` argument.
- Fixed: bug causing `indentation` to stumble over declarations with semicolons on their own lines.

# 4.1.0

- Added: helpful option validation message when object is expected but non-object provided.
- Fixed: `selector-no-id` no longer warns about Sass interpolation when multiple interpolations are used in a selector.

# 4.0.0

- Removed: support for legacy numbered severities.
- Added: support for extensions on `.stylelintrc` files (by upgrading cosmiconfig).
- Added: `ignore: "non-comments"` option to `max-line-length`.
- Fixed: `function-whitespace-after` does not expect space between `)` and `}`, so it handles Sass interpolation better.

# 3.2.3

- Fixed: `selector-no-vendor-prefix` now handles custom-property-sets.

# 3.2.2

- Fixed: `selector-no-type` ignores `nth-child` pseudo-classes and `@keyframes` selectors.

# 3.2.1

- Fixed: `max-line-length` handles `url()` functions better.
- Fixed: `block-opening-brace-newline-after` and `declaration-block-semicolon-newline-after` handle end-of-line comments better.

# 3.2.0

- Added: `legacyNumberedSeverities` config property to force the legacy severity system.
- Added: `selector-no-id` ignores Sass-style interpolation.
- Fixed: bug causing extended config to override the config that extends it.

# 3.1.4

- Fixed: stopped hijacking `--config` property in PostCSS and Node.js APIs. Still using it in the CLI.

# 3.1.3

- Fixed: bug preventing the disabling of rules analyzing the `root` node, including: `max-line-length`, `max-empty-lines`, `no-eol-whitespace`, `no-missing-eof-newline`, and `string-quotes`.
- Fixed: bug causing `rule-properties-order` to get confused by properties with an unspecified order.

# 3.1.2

- Fixed: bug causing an error when `null` was used on rules whose primary options are arrays.

# 3.1.1

- Fixed: Documentation improvements.

# 3.1.0

- Added: `stylelint-commands` `ignore` option to `comment-empty-line-before`.
- Fixed: v3 regression causing bug in `rule-properties-order` and potentially other rules that accept arrays as primary options.
- Fixed: `no-missing-eof-newline` no longer complains about completely empty files.

# 3.0.3

- Fixed: list of rules within documentation.

# 3.0.0-3.0.2

- Removed: `nesting-block-opening-brace-space-before` and `nesting-block-opening-brace-newline-before` rules.
- Deprecated: numbered severities (0, 1, 2) and will be disabled in `4.0`.
- Changed: renamed `rule-single-line-max-declarations` to `declaration-block-single-line-max-declarations` and changed scope of the single-line to the declaration block.
- Changed: renamed `rule-no-single-line` to `declaration-block-no-single-line` and changed scope of the single-line to the declaration block.
- Changed: renamed the `function-space-after` rule to `function-whitespace-after`.
- Changed: renamed the `comment-space-inside` rule to `comment-whitespace-inside`.
- Changed: renamed the `no-multiple-empty-lines` rule to `max-empty-lines` (takes an `int` as option).
- Changed: `plugins` is now an array instead of an object. And plugins should be created with `stylelint.createPlugin()`.
- Added: cosmiconfig, which means the following:

  - support for YAML `.stylelintrc`
  - support for `stylelint.config.js`
  - support for `stylelint` property in `package.json`
  - alternate config loading system, which stops at the first config found

- Added: asynchronicity to the PostCSS plugin.
- Added: `ignoreFiles` option to config.
- Added: `configFile` option to Node.js API.
- Fixed: `comment-whitespace-inside` now ignores ignores copyright (`/*! `) and sourcemap (`/*# `) comments.
- Fixed: `rule-no-duplicate-properties` now ignores the `src` property.

# 2.3.7

- Fixed: `function-calc-no-unspaced-operator` ignores characters in `$sass` and `@less` variables.
- Fixed: `rule-properties-order` allows comments at the top of groups that expect newlines before them.
- Fixed: `styleSearch()` and the rules it powers will not trip up on single-line (`//`) comments.
- Fixed: `selector-combinator-space-before` now better handles nested selectors starting with combinators.
- Fixed: `rule-properties-order` now deals property with `-moz-osx-font-smoothing`.

# 2.3.6

- Fixed: improved documentation of CLI globbing possibilities.
- Fixed: `rule-properties-order` now accounts for property names containing multiple hyphens.
- Fixed: `rule-properties-order` grouping bug.

# 2.3.5

- Added: error about undefined severities blaming stylelint for the bug.
- Fixed: `selector-pseudo-element-colon-notation` typo in rule name resulting in undefined severity.

# 2.3.4

- Fixed: `dist/` build.

# 2.3.3

- Fixed: `property-whitelist`, `rule-no-duplicate-properties`, and `rule-properties-order` ignore variables (`$sass`, `@less`, and `--custom-property`).
- Fixed: `root-no-standard-properties` ignores `$sass` and `@less` variables.
- Fixed: `comment-empty-line-before` and `comment-space-inside` no longer complain about `//` comments.

# 2.3.2

- Fixed: `number-no-trailing-zeros` no longer flags at-import at-rules.

# 2.3.1

- Fixed: `selector-no-type` no longer flags the *nesting selector* (`&`).

# 2.3.0

- Added: `configFile` option to PostCSS plugin.
- Fixed: `function-parentheses-newline-inside` and `function-parentheses-space-inside` bug with nested functions.

# 2.2.0

- Added: `selector-class-pattern` rule.
- Added: `selector-id-pattern` rule.
- Added: `function-parentheses-newline-inside` rule.
- Added: `"always-single-line"` and `"never-single-line"` options to `function-parentheses-space-inside`.
- Fixed: CLI `syntax` argument bug.

# 2.1.0

- Added: `color-no-hex` rule.
- Added: `color-no-named` rule.
- Added: `function-blacklist` rule.
- Added: `function-whitelist` rule.
- Added: `unit-blacklist` rule.
- Added: `unit-whitelist` rule.
- Added: `property-unit-blacklist` rule.
- Added: `property-unit-whitelist` rule.
- Added: `rule-single-line-max-declarations` rule.
- Added: `max-line-length` rule.
- Added: `first-nested` exception to `comment-empty-line-before`.
- Added: single value options to `*-blacklist` & `-*whitelist` rules e.g. `{ "function-blacklist": "calc"}`
- Added: support for flexible groups to `rule-properties-order`.
- Added: support for an optional empty line between each group to `rule-properties-order`.
- Added: support for mathematical signs in front of Sass and Less variables in `function-calc-no-unspaced-operator`.
- Added: support for arbitrary whitespace after function in `function-space-after`.
- Added: support for arbitrary whitespace at the edge of comments in `comment-space-inside`.
- Fixed: `comment-space-inside` allows any number of asterisks at the beginning and end of comments.
- Fixed: bug causing `{ unspecified: "bottom }"` option not to be applied within `rule-properties-order`.
- Fixed: bug causing `function-comma-*` whitespace rules to improperly judge whether to enforce single- or multi-line options.
- Fixed: bug when loading plugins from an extended config
- Fixed: indentation for function arguments, by ignoring them.

# 2.0.0

- Changed: plugins are now included and configured via a "locator", rather than either being `required` or being inserted directly into the configuration object as a function.
- Added: CLI.
- Added: standalone Node API.
- Added: quiet mode to CLI and Node API.
- Added: support for formatters, including custom ones, to CLI and Node API.
- Added: `string` and `json` formatters.
- Added: support for using `.stylelintrc` JSON file.
- Added: support for extending existing configs using the `extends` property.
- Added: support for SCSS syntax parsing to CLI and Node API.
- Added: `function-comma-newline-after` rule.
- Added: `function-comma-newline-before` rule.
- Added: `"always-single-line"` and `"never-single-line"` options to `function-comma-space-after` rule.
- Added: `"always-single-line"` and `"never-single-line"` options to `function-comma-space-before` rule.

# 1.2.1

- Fixed: the `media-query-list-comma-*` rules now only apply to `@media` statements.

# 1.2.0

- Added: `function-linear-gradient-no-nonstandard-direction` rule.
- Added: `rule-properties-order` now by default ignores the order of properties left out of your specified array; and the options `"top"`, `"bottom"`, and `"ignore"` are provided to change that behavior.
- Added: `rule-properties-order` now looks for roots of hyphenated properties in custom arrays so each extension (e.g. `padding-top` as an extension of `padding`) does not need to be specified individually.
- Added: `"always-single-line"` option to `declaration-colon-space-after`.
- Added: support for declarations directly on root (e.g. Sass variable declarations).
- Fixed: `declaration-colon-newline-after` `"always-multi-line"` warning message.

# 1.1.0

- Added: `declaration-colon-newline-after` rule.
- Added: the `indentation` rule now checks indentation of multi-line at-rule params, unless there's the `except` option of `param`.
- Added: support for end-of-line comments in `selector-list-comma-newline-after`.
- Added: protection against `#${sass-interpolation}` in rules checking for hex colors.
- Added: support for strings (translated to RegExps) in `custom-property-pattern` and `custom-media-pattern`.
- Fixed: bug preventing various rules from registering the correct rule names in their warnings, and therefore also preventing them from being disabled with comments.
- Fixed: the `color-no-invalid-hex` rule no longer flags hashes in `url()` arguments.
- Fixed: rules using `node.raw()` instead of `node.raws` to avoid expected errors.

# 1.0.1

- Fixed: `postcss-selector-parser` updated to improve location accuracy for `selector-no-*` rules.

# 1.0.0

- Removed: compatibility with PostCSS `4.x`.
- Added: compatibility with PostCSS `5.0.2+`.
- Fixed: the accuracy of reported line numbers and columns.

# 0.8.0

- Added: `after-comment` `ignore` option to the `at-rule-empty-line-before` rule.
- Fixed: the `indentation` rule now correctly handles `*` hacks on property names.
- Fixed: the `media-feature-colon-space-after` and `media-feature-colon-space-before` rules now only apply to `@media` statements.
- Fixed: the `rule-no-shorthand-property-overrides` rule message is now consistent with the other messages.

# 0.7.0

- Added: invalid options cause the rule to abort instead of performing meaningless checks.
- Added: special warning for missing required options from `validateOptions()`.

# 0.6.2

- Fixed: npm package no longer includes test files (reducing package size by 500KB).

# 0.6.1

- Fixed: the `rule-properties-order` and `rule-no-duplicate-properties` rules now correctly check inside @rules.

# 0.6.0

- Added: `validateOptions` to `stylelint.utils` for use by authors of custom rules.
- Added: `custom-media-pattern` rule.
- Added: `number-max-precision` rule.

# 0.5.0

- Added: validation of all rule options.

# 0.4.1

- Removed: `ruleTester` from `stylelint.utils` because of the additional dependencies it forces.

# 0.4.0

- Removed: `jsesc` devDependency.
- Added: `rule-no-shorthand-property-overrides` rule.
- Added: `ruleTester` to `stylelint.utils` for use by authors of custom rules.

# 0.3.2

- Fixed: `hierarchicalSelectors` bug in `indentation` rule.

# 0.3.1

- Fixed: `~=` is no longer mistaken for combinator in `selector-combinator-space-*`.

# 0.3.0

- Added: exposure of `report`, `ruleMessages`, and `styleSearch` in `stylelint.utils` for use by external plugin rules.
- Added: plugin rule support.
- Added: `hierarchicalSelectors` option to `indentation` rule.
- Added: `nesting-block-opening-brace-space-before` rule.
- Added: `nesting-block-opening-brace-newline-before` rule.
- Fixed: the `color-hex-case` rule message is now consistent with the `color-hex-length` rule.
- Fixed: the `property-blacklist` rule message is now consistent with the `property-whitelist` rule.
- Fixed: a typo in the `comment-space-inside` rule message.

# 0.2.0

- Added: `color-hex-case` rule.
- Added: `color-hex-length` rule.
- Fixed: formalized selector-indentation-checking within the `indentation` rule.
- Fixed: allow for arbitrary whitespace after the newline in the `selector-list-comma-newline-*` rules.
- Fixed: `selector-combinator-space-*` no longer checks `:nth-child()` arguments.

# 0.1.2

- Fixed: nesting support for the `block-opening-brace-newline-before` rule.
- Fixed: nesting support for the `block-opening-brace-space-before` rule.
- Fixed: nesting support for the `rule-trailing-semicolon` rule.

# 0.1.1

- Fixed: nesting support for the `rule-no-duplicate-properties` rule.
- Fixed: nesting support for the `rule-properties-order` rule.
- Fixed: whitespace rules accommodate Windows CR-LF line endings.

# 0.1.0

- Added: ability to disable rules via comments in the CSS.
- Added: `at-rule-empty-line-before` rule.
- Added: `at-rule-no-vendor-prefix` rule.
- Added: `block-closing-brace-newline-after` rule.
- Added: `block-closing-brace-newline-before` rule.
- Added: `block-closing-brace-space-after` rule.
- Added: `block-closing-brace-space-before` rule.
- Added: `block-no-empty` rule.
- Added: `block-opening-brace-newline-after` rule.
- Added: `block-opening-brace-newline-before` rule.
- Added: `block-opening-brace-space-after` rule.
- Added: `block-opening-brace-space-before` rule.
- Added: `color-no-invalid-hex` rule.
- Added: `comment-empty-line-before` rule.
- Added: `comment-space-inside` rule.
- Added: `custom-property-no-outside-root` rule.
- Added: `custom-property-pattern` rule.
- Added: `declaration-bang-space-after` rule.
- Added: `declaration-bang-space-before` rule.
- Added: `declaration-block-semicolon-newline-after` rule.
- Added: `declaration-block-semicolon-newline-before` rule.
- Added: `declaration-block-semicolon-space-after` rule.
- Added: `declaration-block-semicolon-space-before` rule.
- Added: `declaration-colon-space-after` rule.
- Added: `declaration-colon-space-before` rule.
- Added: `declaration-no-important` rule.
- Added: `function-calc-no-unspaced-operator` rule.
- Added: `function-comma-space-after` rule.
- Added: `function-comma-space-before` rule.
- Added: `function-parentheses-space-inside` rule.
- Added: `function-space-after` rule.
- Added: `function-url-quotes` rule.
- Added: `indentation` rule.
- Added: `media-feature-colon-space-after` rule.
- Added: `media-feature-colon-space-before` rule.
- Added: `media-feature-name-no-vendor-prefix` rule.
- Added: `media-feature-range-operator-space-after` rule.
- Added: `media-feature-range-operator-space-before` rule.
- Added: `media-query-list-comma-newline-after` rule.
- Added: `media-query-list-comma-newline-before` rule.
- Added: `media-query-list-comma-space-after` rule.
- Added: `media-query-list-comma-space-before` rule.
- Added: `media-query-parentheses-space-inside` rule.
- Added: `no-eol-whitespace` rule.
- Added: `no-missing-eof-newline` rule.
- Added: `no-multiple-empty-lines` rule.
- Added: `number-leading-zero` rule.
- Added: `number-no-trailing-zeros` rule.
- Added: `number-zero-length-no-unit` rule.
- Added: `property-blacklist` rule.
- Added: `property-no-vendor-prefix` rule.
- Added: `property-whitelist` rule.
- Added: `root-no-standard-properties` rule.
- Added: `rule-nested-empty-line-before` rule.
- Added: `rule-no-duplicate-properties` rule.
- Added: `rule-no-single-line` rule.
- Added: `rule-non-nested-empty-line-before` rule.
- Added: `rule-properties-order` rule.
- Added: `rule-trailing-semicolon` rule.
- Added: `selector-combinator-space-after` rule.
- Added: `selector-combinator-space-before` rule.
- Added: `selector-list-comma-newline-after` rule.
- Added: `selector-list-comma-newline-before` rule.
- Added: `selector-list-comma-space-after` rule.
- Added: `selector-list-comma-space-before` rule.
- Added: `selector-no-attribute` rule.
- Added: `selector-no-combinator` rule.
- Added: `selector-no-id` rule.
- Added: `selector-no-type` rule.
- Added: `selector-no-universal` rule.
- Added: `selector-no-vendor-prefix` rule.
- Added: `selector-pseudo-element-colon-notation` rule.
- Added: `selector-root-no-composition` rule.
- Added: `string-quotes` rule.
- Added: `value-list-comma-newline-after` rule.
- Added: `value-list-comma-newline-before` rule.
- Added: `value-list-comma-space-after` rule.
- Added: `value-list-comma-space-before` rule.
- Added: `value-no-vendor-prefix` rule.