Developed a new Attachment Pages setting for the Automattic/jetpack repository, enabling WordPress administrators to control attachment page rendering directly from the Media Settings screen. The work involved backend development in PHP, including registering the wp_attachment_pages_enabled option with the WordPress settings API and implementing input sanitization to ensure reliable configuration. A user interface checkbox was added to the admin panel, providing an accessible toggle for the new feature. Comprehensive unit tests were written to validate the setting’s behavior and maintain code quality. This update enhanced plugin flexibility and improved the admin user experience without introducing or addressing any major bugs.