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+# ClusterVersion Custom Resource
+
+The `ClusterVersion` is a custom resource object which holds the current version of the cluster.
+This object is used by the administrator to declare their target cluster state, which the cluster-version operator (CVO) then works to transition the cluster to that target state.
+
+## Finding your current update payload
+
+You can extract the current update payload from the `ClusterVersion` object:
+
+```console
+$ oc get clusterversion -o jsonpath='{.status.current.payload}{"\n"}' version
+registry.svc.ci.openshift.org/openshift/origin-release@sha256:c1f11884c72458ffe91708a4f85283d591b42483c2325c3d379c3d32c6ac6833
+```
+
+## Setting objects unmanaged
+
+For testing operators, it is sometimes helpful to disable CVO management so you can alter objects without the CVO stomping on your changes.
+To get a list of objects managed by the CVO, run:
+
+```console
+$ oc adm release extract --from=registry.svc.ci.openshift.org/openshift/origin-release@sha256:c1f11884c72458ffe91708a4f85283d591b42483c2325c3d379c3d32c6ac6833 --to=release-payload
+$ ls release-payload | head -n5
+0000_07_cluster-network-operator_00_namespace.yaml
+0000_07_cluster-network-operator_01_crd.yaml
+0000_07_cluster-network-operator_02_rbac.yaml
+0000_07_cluster-network-operator_03_daemonset.yaml
+0000_08_cluster-dns-operator_00-cluster-role.yaml
+```
+
+To get a list of current overrides, run:
+
+```console
+$ oc get -o json clusterversion version | jq .spec.overrides
+[
+  {
+    "kind": "APIService",
+    "name": "v1alpha1.packages.apps.redhat.com",
+    "unmanaged": true
+  }
+]
+```
+
+To add an entry to that list, you can use a [JSON Patch][json-patch] to add a [`ComponentOverride`][ComponentOverride].
+For example, to set the network operator's daemonset unmanaged:
+
+```console
+$ head -n5 release-payload/0000_07_cluster-network-operator_03_daemonset.yaml
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: cluster-network-operator
+  namespace: openshift-cluster-network-operator
+$ cat <<EOF >version-patch.yaml
+> - op: add
+>   path: /spec/overrides/-
+>   value:
+>     kind: DaemonSet
+>     name: cluster-network-operator
+>     namespace: openshift-cluster-network-operator
+>     unmanaged: true
+> EOF
+$ oc patch clusterversion version --type json -p "$(cat version-patch.yaml)"
+```
+
+You can verify the update with:
+
+```console
+$ oc get -o json clusterversion version | jq .spec.overrides
+[
+  {
+    "kind": "APIService",
+    "name": "v1alpha1.packages.apps.redhat.com",
+    "unmanaged": true
+  },
+  {
+    "kind": "DaemonSet",
+    "name": "cluster-network-operator",
+    "namespace": "openshift-cluster-network-operator",
+    "unmanaged": true
+  }
+]
+```
+
+After updating the `ClusterVersion`, you can make your desired edits to the unmanaged object.
+
+## Disabling the cluster-version operator
+
+When you just want to turn off the cluster-version operator instead of fiddling with per-object overrides, you can:
+
+```console
+$ oc scale --replicas 0 -n openshift-cluster-version deployments/cluster-version-operator
+```
+
+[ComponentOverride]: https://godoc.org/github.com/openshift/api/config/v1#ComponentOverride
+[json-patch]: https://tools.ietf.org/html/rfc6902