v4.3.0

What's Changed

• feat: Upgrade to css-what@6, add quirks mode option by @fb55 in #657
  • In quirks mode, .class and #id selectors are case-insensitive.
• feat: Add optional prevElementSibling adapter method by @fb55 in 78776e8
• fix: Throw errors for namespaced selectors by @fb55 in 255e965
  • Namespaced selectors (eg. *|div, [foo|bar] already caused errors before this release. We now parse them properly and throw errors with better descriptions.

Full Changelog: v4.2.1...v4.3.0