Table of Contents Table of Contents Title and Copyright Information Preface Documentation License Conventions Documentation Accessibility Access to Oracle Support for Accessibility Diversity and Inclusion 1 Introduction to Updating and Upgrading 2 Updating the Host OS 3 Updating to an Errata Release Updating the Operator Node Updating the Kubernetes Nodes Updating the Kubernetes Cluster 4 Upgrading to Release 1.9 Changing the Software Packages Source Oracle Linux 9 Oracle Linux 8 Upgrading the Operator Node Upgrading the Kubernetes Nodes Upgrading the Kubernetes Cluster Upgrading the Calico Module Upgrading the Oracle Cloud Infrastructure Cloud Controller Manager Module Upgrading the Istio Module Upgrading the KubeVirt Module