react/no-prop-types

React 19 ignores propTypes declared on a component. This rule reports a propTypes assignment only when it can prove that the target is a function component returning JSX or a class extending an imported React component.

function Button() {
  return <button />;
}

Button.propTypes = { label: PropTypes.string };

Use TypeScript for component props, or validate untrusted values at an explicit runtime boundary with a schema library. The rule does not generate types or delete declarations automatically because either change can alter public API contracts.

Plain objects and functions that do not satisfy the component evidence are skipped.