Upgrading a Kubernetes cluster is an ongoing task. The biggest challenge for teams maintaining Kubernetes clusters is how to avoid service disruptions or system crashes during the upgrade process. With Karpenter's disruption mechanism, we can now automate Kubernetes cluster upgrades on major cloud platforms such as AWS, Azure, and AlibabaCloud with controlled, zero downtime. To date, Karpenter supports these cloud vendors and will expand to more platforms in the future. This mechanism makes Kubernetes cluster upgrades safe, controllable, easy and efficient, and significantly reduces the operation and maintenance pressure of DevOps teams. In this session, we will discuss how Karpenter's disruption works, show examples of its practice on major cloud platforms, and help you master how to achieve smooth upgrades and ensure the continuous and stable operation of services.