4.0.0

• Update stylelint to ^13.13.1
• Update postcss-selector-parser to ^6.0.6
• Update eslint to ^7.32.0
• Update ava to ^3.15.0

3.0.0

• Update stylelint to ^9.0.0 - Note this drops support for Node 4

1.0.0

• Initial port of deprecated :root rules from Stylelint core - Issue