| Port ranges can be specified in DNAT entries. | 2021-11-17 | All | Create a DNAT entry |
| Virtual Private Cloud (VPC) NAT gateways are supported. | 2021-08-18 | All | Release notes of VPC NAT gateways |
| SNAT entries can be created for specified VPCs and custom CIDR blocks. | 2021-07-01 | All | Create an SNAT entry |
| An elastic IP address (EIP) can be specified in both an SNAT and a DNAT entry. | 2020-09-30 | All | None |
| Data transfer monitoring is supported. | 2020-09-30 | All | View traffic monitoring data collected by NAT gateways |
| NAT gateways are supported in the China (Ulanqab) region. | 2020-06-16 | China (Ulanqab) | None |
| Enhanced NAT gateways are supported. | 2020-05-11 | - China (Hohhot)
- UK (London)
- Germany (Frankfurt)
- India (Mumbai)
| What is an Internet NAT gateway? |
| SNAT IP address pools can be created for specified ECS instances in the console. | 2019-07-08 | All | Create and manage SNAT entries |
| SNAT IP address pools can be created for specified vSwitches in the console. | 2019-07-01 | All | Create and manage SNAT entries |
| Cumulative dropped connections that are caused by capacity limit and speed limit can be viewed in CloudMonitor. | 2019-03-07 | All | Monitor and maintain Internet NAT gateways |
| SNAT entries can be created for specified ECS instances by calling the API. | 2018-08-31 | All | CreateSnatEntry |
| SNAT IP address pools can be created by calling the API. | 2018-08-31 | All | CreateSnatEntry |
| SNAT entries can be created for vSwitches the first time you associate an EIP with a NAT gateway. | 2017-11-03 | All | Associate an EIP with an Internet NAT gateway |
| An SNAT entry that uses multiple EIPs can be created by calling the API. | 2017-01-15 | All | CreateSnatEntry |
| Super Large-1 NAT gateways are supported. | 2016-11-30 | All | What is NAT Gateway? |