0.40.1 release

* Fix regression where linters were enabled by default even if explicitly
  disabled in the default configuration

0.40.0 release

= New Features

* Add support for loading custom linters via the `plugin_directories` and
  `plugin_gems` configuration options (experimental)
* Add `ExtendDirective` linter which checks for any usage of the `@extend`
  directive.
* Add `TrailingWhitespace` linter which reports whitespace characters at the
  end of a line
* Add `SpaceAfterVariableName` linter which checks that there are no spaces
  between a variable name and a colon

= Changes

* Change `NameFormat` to no longer check placeholder names, as this is handled
  by the `SelectorFormat` linter
* Change `NestingDepth` to allow parent selectors to be ignored in depth count
  via the `ignore_parent_selectors` configuration option

= Bug Fixes

* Fix `ColorVariable` from crashing when variable interpolation occurs in
  multiline comments
* Fix `PropertySortOrder`'s `ignore_unspecified: false` behavior to not care
  about the relative order of unspecified properties at the end of a list of
  properties
* Fix `PropertyUnits` for properties that have multiple unit-like values (e.g.
  shorthand properties) and quoted values
* Fix control comment processing for `FinalNewline`, `SpaceBetweenParens`, and
  `TrailingNewline`
* Fix `ElsePlacement` to lint nested `@if` statements

0.39.0 release

= New Features

* Add `BemDepth` which checks the number of BEM elements is under a specified
  maximum

= Changes

* Load configuration file from user's home directory if one exists and no other
  configuration file is specified or in the current working directory
* Improve issue reporting instructions displayed when scss-lint crashes
* Remove `XML` formatter (see the
  [`Checkstyle` formatter](https://github.com/Sweetchuck/scss_lint_reporter_checkstyle)
  for an XML-based alternative)

= Bug Fixes

* Fix `Indentation` to not report `@import` directives spread across multiple
  lines
* Fix `Indentation` linter from crashing on `@else` statements with
  `allow_non_nested_indentation` set to `true`
* Update default configuration to work with projects using the
  [`syck`](https://github.com/indeyets/syck) YAML parser
* Fix `ColorKeyword` to not report lints for map keys with color keyword names

0.38.0 release

* Change configuration loading behavior so that defining lists in a custom
  configuration will completely override the old list instead of adding to it
* Fix `DeclarationOrder` linter to report lints for items within media queries
* Add `allowed_shorthands` option for `Shorthand` linter
* Add `allowed` option to `Comment` linter specifying regex of allowed
  multi-line comments, such as copyright notices
* Fix bug where control comments could filter out lints from other files
  depending on scan order
* Ignore `currentColor`, `inherit`, and `transparent` values in
  `VariableForProperty`
* Add `min_properties` option to `PropertySortOrder` to allow specifying a
  threshold number of properties that must be present before linting occurs
* Fix `PropertySortOrder` to lint sort order of nested properties
* Add `one_space_or_newline` `style` option to `SpaceAfterPropertyColon`
* Fix `ColorVariable` to ignore literal strings containing color keywords
* Rename `scss-lint` gem to `scss_lint` to follow RubyGems [best practices for
  naming gems](http://guides.rubygems.org/name-your-gem/). This only affects
  the name you use in `Gemfile`s or when you `gem install`; everything else
  remains the same.

0.37.0 release

* Rename `BEM` option on `SelectorFormat` to `strict_BEM` to emphasize that
  this is a particular dialect which may not be what developers expect
* Allow `SelectorFormat` convention explanations to be customized via the
  `#{type}_convention_explanation` and `convention_explanation` options
* Add `camel_case` and `snake_case` conventions to `NameFormat`
* Remove `BEM` convention from `NameFormat`, as it didn't make sense in this
  context since `NameFormat` does not deal with selectors
* Add support for function, mixin, or variable-specific conventions to
  `NameFormat`
* Add support for custom convention explanations to `NameFormat`

0.36.1 release

* Fix `PropertyUnits` to not error on properties with function call values
* Fix `DeclarationOrder` false positives on lines of the same type of node
* Fix `PropertyUnits` false positives on unicode escape sequences and string
  values that look like units
* Add additional units to default configuration for `PropertyUnits`, including
  durations, frequencies, angles, and resolutions

0.36.0 release

* Fix `SpaceAfterPropertyColon` to report nested properties
* Add `PropertyUnits` allowing customization of which units are allowed for
  specific properties
* Allow color literals in map declarations and the `rgba` helper function in
  `ColorVariable`
* Gracefully handle when a library specified via `-r`/`--require` is not found
  and return a semantic exit code `EX_UNAVAILABLE` (`69`)
* Improve message of `DeclarationOrder` to specify the line number of the
  out-of-order item and the line number of where it was expected to be
* Return helpful error message and unsuccessful exit code when all files
  matched by specified glob patterns are excluded by `--exclude` flags and
  `exclude` configuration settings
* Change exit code returned when file globs patterns did not match any files to
  be different from the exit code returned when a specified file does not exist

0.35.0 release

* Fix `ColorVariable` to not report occurrences of `transparent` when appearing
  in function calls or list literals
* Fix infinite loop in control comment processor when dealing with parse nodes
  with no children with line numbers
* Change `VendorPrefix` config options `include` and `exclude` to
  `additional_identifers` and `excluded_identifers`, respectively
* Rename `VendorPrefixes` to `VendorPrefix`
* Add `animation*` properties to concentric.txt
* Fix bug where attempting to lint a non-existent file would result in a crash

0.34.0 release

New Features

* Add `ImportantRule` linter which reports uses of `!important` in properties
* Add `VariableForProperty` linter which enforces using variables for
  specified property values instead of literal values
* Add `convention` option to `BorderZero` allowing `none` to be preferred over
  zero
* Add `separate_groups` option to `PropertySortOrder` to specify that groups
  of properties should be visually separated
* Add `PropertyCount` linter which reports rule sets with a large number of
  properties
* Add `ColorVariable` linter which enforces the use of color literals in
  variable declarations only
* Add `break-after`, `break-before`, `break-inside`, and `text-size-adjust`
  to list of recognized properties
* Add `allow_non_nested_indentation` option to `Indentation` linter
* Allow files without `.scss`/`.css` extension to be linted if they are
  passed explicitly (i.e. you do not specify a directory, but the file itself)

Changes

* Remove support for per-directory configuration and `inherit_from` from
  the configuration system

Bug Fixes

* Fix bug in `StringQuotes` where Sass script in non-silent comments would
  cause a crash
* Fix control comments placed before `@include` blocks to apply within them
* Fix crash in `PropertySortOrder` when non-existent preset sort order or
  otherwise invalid sort order are specified in the configuration
* Fix recognition of control comments in selector comma sequences
* Fix crash in `BangFormat`, `ImportantRule`, and `VendorPrefixes` when linting
  properties with list literals containing empty lists

0.33.0 release

* Call `Kernel.exit` with status code returned by CLI in rake task (unless 0)
* Allow list of files and glob patterns to be passed as task arguments
  to rake task
* Allow custom configuration file to be specified in rake task
* Fix infinite loop in `SpaceAfterComma` for arguments spanning multiple
  lines