diff --git a/api/openapi-spec/swagger.json b/api/openapi-spec/swagger.json
index 83ccba35e34..b79ba5db67f 100644
--- a/api/openapi-spec/swagger.json
+++ b/api/openapi-spec/swagger.json
@@ -8430,7 +8430,7 @@
       "description": "NodeStatus is information about the current status of a node.",
       "properties": {
         "addresses": {
-          "description": "List of addresses reachable to the node. Queried from cloud provider, if available. More info: https://kubernetes.io/docs/concepts/nodes/node/#addresses",
+          "description": "List of addresses reachable to the node. Queried from cloud provider, if available. More info: https://kubernetes.io/docs/concepts/nodes/node/#addresses Note: This field is declared as mergeable, but the merge key is not sufficiently unique, which can cause data corruption when it is merged. Callers should instead use a full-replacement patch. See http://pr.k8s.io/79391 for an example.",
           "items": {
             "$ref": "#/definitions/io.k8s.api.core.v1.NodeAddress"
           },
diff --git a/staging/src/k8s.io/api/core/v1/generated.proto b/staging/src/k8s.io/api/core/v1/generated.proto
index 742627b094a..a363d2dbfb1 100644
--- a/staging/src/k8s.io/api/core/v1/generated.proto
+++ b/staging/src/k8s.io/api/core/v1/generated.proto
@@ -2136,6 +2136,9 @@ message NodeStatus {
   // List of addresses reachable to the node.
   // Queried from cloud provider, if available.
   // More info: https://kubernetes.io/docs/concepts/nodes/node/#addresses
+  // Note: This field is declared as mergeable, but the merge key is not sufficiently
+  // unique, which can cause data corruption when it is merged. Callers should instead
+  // use a full-replacement patch. See http://pr.k8s.io/79391 for an example.
   // +optional
   // +patchMergeKey=type
   // +patchStrategy=merge
diff --git a/staging/src/k8s.io/api/core/v1/types.go b/staging/src/k8s.io/api/core/v1/types.go
index 2279a4b7a53..a1ecce473fb 100644
--- a/staging/src/k8s.io/api/core/v1/types.go
+++ b/staging/src/k8s.io/api/core/v1/types.go
@@ -4082,6 +4082,9 @@ type NodeStatus struct {
 	// List of addresses reachable to the node.
 	// Queried from cloud provider, if available.
 	// More info: https://kubernetes.io/docs/concepts/nodes/node/#addresses
+	// Note: This field is declared as mergeable, but the merge key is not sufficiently
+	// unique, which can cause data corruption when it is merged. Callers should instead
+	// use a full-replacement patch. See http://pr.k8s.io/79391 for an example.
 	// +optional
 	// +patchMergeKey=type
 	// +patchStrategy=merge
diff --git a/staging/src/k8s.io/api/core/v1/types_swagger_doc_generated.go b/staging/src/k8s.io/api/core/v1/types_swagger_doc_generated.go
index 89723b82121..0760ab06ae7 100644
--- a/staging/src/k8s.io/api/core/v1/types_swagger_doc_generated.go
+++ b/staging/src/k8s.io/api/core/v1/types_swagger_doc_generated.go
@@ -1129,7 +1129,7 @@ var map_NodeStatus = map[string]string{
 	"allocatable":     "Allocatable represents the resources of a node that are available for scheduling. Defaults to Capacity.",
 	"phase":           "NodePhase is the recently observed lifecycle phase of the node. More info: https://kubernetes.io/docs/concepts/nodes/node/#phase The field is never populated, and now is deprecated.",
 	"conditions":      "Conditions is an array of current observed node conditions. More info: https://kubernetes.io/docs/concepts/nodes/node/#condition",
-	"addresses":       "List of addresses reachable to the node. Queried from cloud provider, if available. More info: https://kubernetes.io/docs/concepts/nodes/node/#addresses",
+	"addresses":       "List of addresses reachable to the node. Queried from cloud provider, if available. More info: https://kubernetes.io/docs/concepts/nodes/node/#addresses Note: This field is declared as mergeable, but the merge key is not sufficiently unique, which can cause data corruption when it is merged. Callers should instead use a full-replacement patch. See http://pr.k8s.io/79391 for an example.",
 	"daemonEndpoints": "Endpoints of daemons running on the Node.",
 	"nodeInfo":        "Set of ids/uuids to uniquely identify the node. More info: https://kubernetes.io/docs/concepts/nodes/node/#info",
 	"images":          "List of container images on this node",