Azure Public IP addresses are used to provide external connectivity to resources deployed in Azure. These IP addresses can be assigned to Virtual Machines, Load Balancers, Application Gateways, and other services. Azure offers two types of Public IP addresses: Basic and Standard.
The Basic Public IP address does not support Availability Zones, which means that it is not suitable for high-availability scenarios. Also, Microsoft is now recommending shifting to Standard SKU as the basic SKUs will be deprecated in the coming future.
On the other hand, the Standard Public IP address provides more features than the Basic Public IP address. It supports Availability Zones, which means that it can be used in high-availability scenarios. It also provides better traffic management capabilities, such as traffic load balancing, traffic distribution, and traffic routing.
How to change Azure Public IP to Standard SKU:
If you have deployed a Basic Public IP address and you want to upgrade it to a Standard Public IP address, you can follow these steps:
STEP 1: Sign in to the Azure portal.
STEP 2: Click on "Public IP addresses

STEP 3: You need to disassociate the IP first from Network Interface if associated somewhere.

STEP 4: Click to upgrade

FINAL: Once upgraded, it will be shown as standard.
It can be associated again with the interface without any issues.

Once the Public IP address is upgraded to a Standard SKU, you can use it with resources that require high availability and traffic management capabilities.
It is important to note that upgrading a Public IP address from Basic to Standard may incur additional charges. You should review the pricing details before making the upgrade to ensure that it fits within your budget. If you want to know more details about Azure changes get in touch with CAINDUS SYSTEMS, we will provide you with the Best Cloud Migration Solution.
In summary, upgrading a Public IP address from Basic to Standard SKU can provide better traffic management capabilities and support high availability scenarios. This can help improve the reliability and performance of your Azure resources.