diff --git a/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2019-04-01/examples/ManagedClustersGetUpgradeProfile.json b/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2019-04-01/examples/ManagedClustersGetUpgradeProfile.json
index e27a85367c96..dfcb51a1a072 100644
--- a/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2019-04-01/examples/ManagedClustersGetUpgradeProfile.json
+++ b/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2019-04-01/examples/ManagedClustersGetUpgradeProfile.json
@@ -17,7 +17,13 @@
               "name": "agent",
               "osType": "Linux",
               "upgrades": [
-                "1.8.1"
+                {
+                  "kubernetesVersion": "1.7.9"
+                },
+                {
+                  "kubernetesVersion": "1.7.11",
+                  "isPreview": true
+                }
               ]
             }
           ],
@@ -26,7 +32,13 @@
             "name": "master",
             "osType": "Linux",
             "upgrades": [
-              "1.8.1"
+              {
+                "kubernetesVersion": "1.7.9",
+                "isPreview": true
+              },
+              {
+                "kubernetesVersion": "1.7.11"
+              }
             ]
           }
         },
diff --git a/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2019-04-01/managedClusters.json b/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2019-04-01/managedClusters.json
index 6fe32a01a395..edd6998d9287 100644
--- a/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2019-04-01/managedClusters.json
+++ b/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2019-04-01/managedClusters.json
@@ -1822,23 +1822,6 @@
       },
       "description": "Identity for the managed cluster."
     },
-    "OrchestratorProfile": {
-      "properties": {
-        "orchestratorType": {
-          "type": "string",
-          "description": "Orchestrator type."
-        },
-        "orchestratorVersion": {
-          "type": "string",
-          "description": "Orchestrator version (major, minor, patch)."
-        }
-      },
-      "required": [
-        "orchestratorType",
-        "orchestratorVersion"
-      ],
-      "description": "Contains information about orchestrator."
-    },
     "ManagedClusterAccessProfile": {
       "allOf": [
         {
@@ -1893,7 +1876,17 @@
         "upgrades": {
           "type": "array",
           "items": {
-            "type": "string"
+            "type": "object",
+            "properties": {
+              "kubernetesVersion": {
+                "type": "string",
+                "description": "Kubernetes version (major, minor, patch)."
+              },
+              "isPreview": {
+                "type": "boolean",
+                "description": "Whether Kubernetes version is currently in preview."
+              }
+            }
           },
           "description": "List of orchestrator types and versions available for upgrade."
         }