Exactly. Doing an upgrade to an internal email service is a configuration change. Scaling down a cluster is a configuration change. Mitigating a DDoS attack by

Exactly. Doing an upgrade to an internal email service is a configuration change. Scaling down a cluster is a configuration change. Mitigating a DDoS attack by implementing a firewall rule is a configuration change. “Configuration” in this context is the high level system configuration, and can mean pretty much anything that falls under that.