The @babel/plugin-transform-named-capturing-groups-regex Babel plugin transforms RegExp named capture groups syntax from ES2018 to ES5-compatible code. It enables developers to use modern regular expression features in older JavaScript environments, ensuring broader compatibility. This plugin rewrites regular expressions containing named capture groups, allowing developers to leverage features like (?<name>...) without sacrificing support for older browsers or Node.js versions. Incorporating this plugin in Babel configurations allows existing codebases to adopt regular expression syntax smoothly.