diff --git a/src/azure-cli/azure/cli/command_modules/network/_help.py b/src/azure-cli/azure/cli/command_modules/network/_help.py
index 14e4f9f055b..8e2c85f48ef 100644
--- a/src/azure-cli/azure/cli/command_modules/network/_help.py
+++ b/src/azure-cli/azure/cli/command_modules/network/_help.py
@@ -4623,8 +4623,6 @@
 helps['network public-ip create'] = """
 type: command
 short-summary: Create a public IP address.
-long-summary: >
-    [Coming breaking change] In the coming release, the default behavior will be changed as follows when sku is Standard and zone is not provided: zones = [], which means the Standard Public IP has no zones. If you want to create a zone-redundant Public IP address, please specify all the zones in the region. For example, --zone 1 2 3.
 examples:
   - name: Create a basic public IP resource.
     text: az network public-ip create -g MyResourceGroup -n MyIp
@@ -5419,6 +5417,8 @@
 examples:
   - name: Update a virtual network with the IP address of a DNS server.
     text: az network vnet update -g MyResourceGroup -n MyVNet --dns-servers 10.2.0.8
+  - name: Update a virtual network to delete DNS server.
+    text: az network vnet update -g MyResourceGroup -n MyVNet --dns-servers ''
   - name: Update a virtual network. (autogenerated)
     text: |
         az network vnet update --address-prefixes 40.1.0.0/24 --name MyVNet --resource-group MyResourceGroup