Alibaba Cloud extended the time period during which you can update standard NAT gateways to enhanced NAT gateways free of charge. The time period for free upgrades is extended from December 31, 2020 to March 30, 2021.

Features of enhanced NAT gateways

Enhanced NAT gateways are an upgrade from standard NAT gateways and use a more advanced architecture. Compared with standard NAT gateways, enhanced NAT gateways provide higher performance and higher elasticity. Enhanced NAT gateways support flexible billing methods and fine-grained maintenance. For more information, see Release notes of enhanced NAT gateways.
Note We recommend that you upgrade standard NAT gateways to enhanced NAT gateways. This way, you can better manage network traffic that is sent over the Internet.
Features of enhanced NAT gateways

Upgrade

Before you upgrade a standard NAT gateway to an enhanced NAT gateway, take note of the instructions in the following figure.Instructions

For more information about how to upgrade standard NAT gateways to enhanced NAT gateways, see Immediately upgrade a standard NAT gateway to an enhanced NAT gateway.