v4.0.0

• Support Stylelint v14
• Drop compatbility with Stylelint v13

The new recommended configuration enforces additional rules and this may raise new linting errors. I don't want to examine all the new rules now, so I suggest disabling temporarily the new rules in your project for now. Most of them can be fixed automatically, so it won't be big deal to change them in the future.

Here is a set of rules that raised errors after the update:

  alpha-value-notation: null
  at-rule-no-vendor-prefix: null
  color-function-notation: null
  declaration-block-no-redundant-longhand-properties: null
  hue-degree-notation: null
  keyframes-name-pattern: null
  max-line-length: null
  media-feature-name-no-vendor-prefix: null
  number-max-precision: null
  property-no-vendor-prefix: null
  selector-class-pattern: null
  selector-id-pattern: null
  selector-no-vendor-prefix: null
  shorthand-property-no-redundant-values: null
  string-quotes: null
  value-no-vendor-prefix: null