Example 2: The container host is running Windows Server version 1809 with KB4534273 applied. Any Windows Server container deployed to this host must be based on a Windows Server version 1809 (10.0.17763) container base image, but doesn't need to match the host KB. If KB4534273 is applied to the host, the container images will still be supported, but we recommend you update them to address any potential security issues.