Release notes

This page contains release notes for features and updates to Traffic Director.

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June 02, 2021

May 19, 2021

Traffic Director security service with GKE is now available in Public Preview. This provides the following:

  • Authentication and encryption using transport layer security (TLS) and mutual TLS (mTLS) for both Traffic Director with Envoy and proxyless gRPC applications. Server TLS policies and client TLS policies control whether services need to prove their identities to each other and use encrypted communication channels.

  • Authorization, based on characteristics of the client and the request. Authorization policies control whether a service is permitted to access another service, and which actions are allowed. Authorization is currently available only for Traffic Director with Envoy.

May 13, 2021

Fixed an issue where the Services user interface would display a warning if a service had a mix of healthy backend groups (x out of x healthy endpoints) and empty backend groups (0 out of 0 healthy endpoints). Now, services that have a mix of healthy backend groups and empty backend groups are shown as healthy.

May 07, 2021

gRPC's observability features can now be used with services that use Traffic Director, including monitoring and tracing metrics that help you solve issues with your deployment. For more details, see Observability with proxyless gRPC applications.

Proxyless gRPC applications can now use these advanced traffic management features:

  • Circuit breaking
  • Fault injection
  • Max stream duration

For complete information, see Setting up proxyless gRPC services with advanced traffic management

April 22, 2021

Fixed an issue that caused unexpected behavior when handling malformed HTTP requests.

April 13, 2021

Traffic Director now supports the Client Status Discovery Service (CSDS) API, enabling you to see which clients are connected to Traffic Director and to inspect the configuration that Traffic Director generates for its clients. For more information, see Understanding Traffic Director client status.

April 12, 2021

Traffic Director now supports TCP-based services in GA. This brings service discovery, global load balancing, failover and many other Traffic Director capabilities to your non-HTTP services. See the setup guide to get started and the target proxies documentation for helpful background information.

March 22, 2021

Traffic Director support for xDS clients that connect and request configuration using the xDS v3 API is now Generally Available. The following setup guides have been updated to use xDS v3:

January 21, 2021

Traffic Director support for xDS clients that connect and request configuration using the xDS v3 API is now in Preview.

January 05, 2021

Traffic Director now supports TCP-based services in Preview. This brings service discovery, global load balancing, failover and many other Traffic Director capabilities to your non-HTTP services. See the setup guide to get started and the target proxies documentation for helpful background information.

November 12, 2020

Traffic Director now supports multi-environment deployments. The hybrid connectivity network endpoint group (NEG) is in General Availability. The documentation includes an overview of the feature and a tutorial, Network edge services for multi-environment (on-premises, multi-cloud) deployments.

September 29, 2020

September 03, 2020

Traffic Director can now be set up for GKE Pods with automatic Envoy injection.

August 26, 2020

Traffic Director supports advanced traffic management features with proxyless gRPC applications in General Availability. This release includes path- and header-based routing, as well as weight-based traffic splitting.

July 21, 2020

Traffic Director supports proxyless gRPC applications in General Availability. In this deployment model, gRPC applications can participate in a service mesh without needing a sidecar proxy.

July 07, 2020

Traffic Director now provides the option of automated Envoy deployment.

Traffic Director now supports automated Envoy deployments for Google Compute Engine VMs in Beta.

May 06, 2020

A new document is added to Traffic Director: Ingress traffic for your mesh.

April 15, 2020

A new document, Traffic Director features, is published.

November 15, 2019

July 08, 2019

June 20, 2019

Traffic Director is available in GA.

March 15, 2019

Traffic Director is available in Beta.