Upgrade
Upgrade Calico on Kubernetes
Upgrade Calico Open Source on Kubernetes from v3.15 or later for Helm, operator-managed, and manifest-based installs on both Kubernetes API and etcd datastores.
Upgrade Calico on OpenShift 4
Upgrade Calico Open Source on OpenShift 4 by reapplying manifests and updating OwnerReferences for projectcalico.org/v3 resources.
Upgrade Calico on OpenStack
Upgrade Calico Open Source on OpenStack from v3.0 or later by updating system packages on CentOS or Ubuntu compute and control nodes.