Version 4.0.0

Major

• Updated Node.js support to ^14.17.0 || ^16.0.0 || >= 18.0.0.
• Updated dev dependencies, some of which require newer Node.js versions than previously supported.
• Removed the package main field.
• Removed ./package from the package exports field; the full package.json filename must be used in a require path.
• Renamed the index.js module to babelPluginSyntaxHighlight.js and added it to the package exports field so it can be deep imported.
• Implemented TypeScript types via JSDoc comments.
• Use the node: URL scheme for Node.js builtin module imports in tests.

Patch

• Updated dependencies.
• Simplified dev dependencies and config for ESLint.
• Simplified package scripts.
• Check TypeScript types via a new package types script.
• Various type safety improvements.
• Guard against the edge case where the specified Prism.js language name is the name of one of the Prism.languages methods, e.g. extend.
• Gracefully error if a template literal string can’t be cooked, e.g. due to an invalid escape sequence with the Babel transform option parserOpts.errorRecovery enabled.
• Updated GitHub Actions CI config:
  • No longer run tests with Windows.
  • Run tests with Node.js v14, v16, v18.
  • Updated actions/checkout to v3.
  • Updated actions/setup-node to v3.
• Configured Prettier option singleQuote to the default, false.
• Updated tests:
  • Use the @babel/core function transformAsync instead of transform.
  • Use a new snapshot-assertion dev dependency to snapshot test error messages.
• Added a license.md MIT License file.
• Revamped the readme:
  • Removed the badges.
  • Changed headings.
  • Added a “Requirements” section.
  • Added information about TypeScript config and optimal JavaScript module design.
  • Added an “Exports” section.