Merge branch 'patch-2' of https://github.com/vishalk9040/azure-docs into fxl-----update-cache-how-to-upgrade-111329

Author: flang-msft

articles/azure-cache-for-redis/cache-how-to-upgrade.md

@@ -69,6 +69,12 @@ To upgrade a cache from 4 to 6 using the Azure CLI, use the following command:
 ```azurecli-interactive
 az redis update --name cacheName --resource-group resourceGroupName --set redisVersion=6
 ```
+>[!NOTE]
+> If private endpoint is enabled on the cache - based on whether PublicNetworkAccess is enabled or disabled,please refer the below commands:
+
+>If PublicNetworkAccess is enabled- az redis update --name cacheName --resource-group resourceGroupName --set publicNetworkAccess=Enabled redisVersion=6
+>If PublicNetworkAccess is disabled- az redis update --name cacheName --resource-group resourceGroupName --set publicNetworkAccess=Disabled redisVersion=6
+
 
 ## Upgrade using PowerShell