MySQL 8 is a widely used relational database management system. It comes with advanced features like window functions, common table expressions, and JSON enhancements, which enable more complex and efficient data manipulation. The system has improved performance through better indexing, query optimization, and caching mechanisms. MySQL 8 also offers enhanced security with robust user authentication, role-based access control, and data encryption features. In addition, it supports a wide range of storage engines, allowing developers to choose the most suitable one for different application requirements.