WebKit (WebCore)

• Changed: CSS Selector :focus-visible

  Status	In Development	→	Supported
  EnabledByDefault	false	→	(n/a)

• Changed: Dialog Element

  Status	In Development	→	Supported

• Added: CSS Cascade Layers

  Status	Supported

• Added: CSS viewport-relative units

  Status	Supported

• Added: CSS Selector :has()

  Status	Supported