Document history for transit gateways
The following table describes the releases for transit gateways.
| Change | Description | Date |
|---|---|---|
Create a network function attachment to connect a transit gateway directly to Amazon Network Firewall. | June 16, 2025 | |
You can now reference a security group across VPCs attached to a transit gateway. | September 25, 2024 | |
Bandwidth limits were added. | August 14, 2023 | |
Transit Gateways now support Transit Gateway Flow Logs, allowing you to monitor and log network traffic between transit gateways. | July 14, 2022 | |
Use policy tables to set up dynamic routing for transit gateways for automatically exchanging routing and reachability information with peered transit gateway types. | July 13, 2022 | |
Network Manager User Guide | Network Manager was created as a standalone guide, and is no longer included as part of the Amazon Transit Gateway User Guide. | December 2, 2021 |
You can create a peering connection with a transit gateway in the same Region. | December 1, 2021 | |
You can establish a connection between a transit gateway and third-party virtual appliances running in a VPC. | December 10, 2020 | |
Appliance mode | You can enable appliance mode on a VPC attachment to ensure that bidirectional traffic flows through the same Availability Zone for the attachment. | October 29, 2020 |
Prefix list references | You can reference a prefix list in your transit gateway route table. | August 24, 2020 |
You can modify the configuration options for your transit gateway. | August 24, 2020 | |
You can view CloudWatch metrics for individual transit gateway attachments. | July 6, 2020 | |
You can analyze the routes in your transit gateway route tables in your global network. | May 4, 2020 | |
You can create a peering connection with a transit gateway in another Region. | December 3, 2019 | |
Transit Gateway supports routing multicast traffic between subnets of attached VPCs and serves as a multicast router for instances sending traffic destined for multiple receiving instances. | December 3, 2019 | |
You can visualize and monitor your global networks that are built around transit gateways. | December 3, 2019 | |
You can use an Amazon Direct Connect gateway to connect your Amazon Direct Connect connection over a transit virtual interface to the VPCs or VPNs attached to your transit gateway. | March 27, 2019 | |
Initial release | This release introduces transit gateways. | November 26, 2018 |