diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ClaimAnyVm.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ClaimAnyVm.json
index ce186cf5cec0..8e5a46ad07ea 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ClaimAnyVm.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ClaimAnyVm.json
@@ -3,7 +3,7 @@
     "subscriptionId": "{subscription-id}",
     "resourceGroupName": "myResourceGroup",
     "name": "{devtestlab-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "monitor": "true"
   },
   "responses": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_CreateEnvironment.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_CreateEnvironment.json
index e4f72214e0b8..2555be1b6585 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_CreateEnvironment.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_CreateEnvironment.json
@@ -3,7 +3,7 @@
     "subscriptionId": "{subscription-id}",
     "resourceGroupName": "myResourceGroup",
     "name": "{devtestlab-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "labVirtualMachineCreationParameter": {
       "properties": {
         "osType": "Linux",
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_CreateOrUpdate.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_CreateOrUpdate.json
index d80294795e2c..b6f5160c688c 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_CreateOrUpdate.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_CreateOrUpdate.json
@@ -3,7 +3,7 @@
     "subscriptionId": "{subscription-id}",
     "resourceGroupName": "myResourceGroup",
     "name": "{devtestlab-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "lab": {
       "properties": {
         "labStorageType": "{Standard|Premium}"
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Delete.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Delete.json
index 69dc3d95bebe..d30cbc0c6b1d 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Delete.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Delete.json
@@ -3,7 +3,7 @@
     "subscriptionId": "{subscription-id}",
     "resourceGroupName": "myResourceGroup",
     "name": "{devtestlab-name}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_GenerateUploadUri.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_GenerateUploadUri.json
index a84e61122adb..297f5d014680 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_GenerateUploadUri.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_GenerateUploadUri.json
@@ -3,7 +3,7 @@
     "subscriptionId": "{subscription-id}",
     "resourceGroupName": "myResourceGroup",
     "name": "{devtestlab-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "generateUploadUriParameter": {
       "blobName": "{blob-name}"
     }
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Get.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Get.json
index 1f56023f25b8..2fb63de949c6 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Get.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Get.json
@@ -3,7 +3,7 @@
     "subscriptionId": "{subscription-id}",
     "resourceGroupName": "myResourceGroup",
     "name": "{devtestlab-name}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ListByResourceGroup.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ListByResourceGroup.json
index 6cc3c30ad64d..4e37aac9e6d5 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ListByResourceGroup.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ListByResourceGroup.json
@@ -2,7 +2,7 @@
   "parameters": {
     "subscriptionId": "{subscription-id}",
     "resourceGroupName": "myResourceGroup",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ListBySubscription.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ListBySubscription.json
index cdae8b2f96e6..fb715b6a40cb 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ListBySubscription.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_ListBySubscription.json
@@ -1,7 +1,7 @@
 {
   "parameters": {
     "subscriptionId": "{subscription-id}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Update.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Update.json
index 242a31478233..7aa97b304fc2 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Update.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/Labs_Update.json
@@ -3,7 +3,7 @@
     "subscriptionId": "{subscription-id}",
     "resourceGroupName": "myResourceGroup",
     "name": "{devtestlab-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "lab": {
       "properties": {
         "labStorageType": "Premium"
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/ProviderOperations_List.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/ProviderOperations_List.json
index 762f1f69fc44..f74626609568 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/ProviderOperations_List.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/ProviderOperations_List.json
@@ -1,6 +1,6 @@
 {
   "parameters": {
-      "api-version": "2018-10-15-preview"
+      "api-version": "2018-09-15"
   },
   "responses": {
       "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Claim.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Claim.json
index 735b68da17b0..295b161bbf2c 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Claim.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Claim.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_CreateOrUpdate.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_CreateOrUpdate.json
index dfe3a0c00834..082c8e29c18a 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_CreateOrUpdate.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_CreateOrUpdate.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "labVirtualMachine": {
       "properties": {
         "osType": "Linux",
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Delete.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Delete.json
index ae456eab47a4..84c979344762 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Delete.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Delete.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Get.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Get.json
index a09a6fa966fa..dee2632be7fc 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Get.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Get.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_GetRdpFileContents.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_GetRdpFileContents.json
index 6fc0184759c7..d95c74f710cd 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_GetRdpFileContents.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_GetRdpFileContents.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_List.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_List.json
index c8d5079322db..f9ad5030d076 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_List.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_List.json
@@ -3,7 +3,7 @@
     "subscriptionId": "{subscription-id}",
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Redeploy.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Redeploy.json
index 9f39bf9443c4..f6cea45cb0f8 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Redeploy.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Redeploy.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "monitor": "true"
   },
   "responses": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Resize.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Resize.json
index 8bb556bf7b27..823b697d9851 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Resize.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Resize.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "monitor": "true",
     "resizeLabVirtualMachineProperties": {
       "size": "Standard_A4_v2"
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Restart.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Restart.json
index 9f39bf9443c4..f6cea45cb0f8 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Restart.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Restart.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "monitor": "true"
   },
   "responses": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Start.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Start.json
index 9f39bf9443c4..f6cea45cb0f8 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Start.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Start.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "monitor": "true"
   },
   "responses": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Stop.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Stop.json
index 735b68da17b0..295b161bbf2c 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Stop.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Stop.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_UnClaim.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_UnClaim.json
index 9f39bf9443c4..f6cea45cb0f8 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_UnClaim.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_UnClaim.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "monitor": "true"
   },
   "responses": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Update.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Update.json
index 991168c9b4e7..30b5739db955 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Update.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualMachines_Update.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualmachine-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "labVirtualMachine": {
       "properties": {
         "notes": "Updated notes"
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_CreateOrUpdate.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_CreateOrUpdate.json
index 3412abbdc64d..b9ae334414e9 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_CreateOrUpdate.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_CreateOrUpdate.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualnetwork-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "virtualNetwork": {
       "location": "{azure-location}",
       "tags": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Delete.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Delete.json
index 045990ab9fa5..88cdf9309b3d 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Delete.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Delete.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualnetwork-name}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Get.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Get.json
index 7104de5c9cda..297ad649a413 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Get.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Get.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualnetwork-name}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_List.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_List.json
index b905f79e2338..79f9cb3e849e 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_List.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_List.json
@@ -3,7 +3,7 @@
     "subscriptionId": "{subscription-id}",
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
-    "api-version": "2018-10-15-preview"
+    "api-version": "2018-09-15"
   },
   "responses": {
     "200": {
diff --git a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Update.json b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Update.json
index d439c40e4cd7..00064846e0bb 100644
--- a/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Update.json
+++ b/specification/devtestlabs/resource-manager/Microsoft.DevTestLab/stable/2018-09-15/examples/VirtualNetworks_Update.json
@@ -4,7 +4,7 @@
     "resourceGroupName": "myResourceGroup",
     "labName": "{devtestlab-name}",
     "name": "{virtualnetwork-name}",
-    "api-version": "2018-10-15-preview",
+    "api-version": "2018-09-15",
     "virtualNetwork": {
       "properties": {
         "subnetOverrides": [