Harness utilizes a Connected-On-Premises model to deliver its software, which combines the speed of cloud updates with the security and control of on-premises deployments. This approach uses a Kubernetes-based architecture, where an agent called the Harness Ambassador manages updates within the customer's environment, ensuring that updates are frequent and secure without the need for customer data to leave the premises. By employing this model, Harness can push updates efficiently, reducing the complexity of maintaining older software versions and addressing compatibility issues. Customers benefit from this setup by enjoying the latest features at their own pace while maintaining high security standards, and Harness benefits from streamlined development cycles and simplified update processes.