The age of the customer demands operational excellence within the technology organization. A sound approach to configuration management is essential to ensure always-on, secure, high-quality services, yet configuration management has been troublesome and confusing. It is not a unitary practice, but rather a related set of concerns applied to software, services, and technical elements. Operations professionals need a comprehensive, unified approach and an up-to-date awareness of recent cloud-native, DevOps, security, and infrastructure-as-code (IaC) trends.