Session affinity support using GCPTrafficDistributionPolicy for GKE Gateway is generally available.

Session affinity support using GCPTrafficDistributionPolicy for GKE Gateway is generally available. This release currently supports single-cluster GKE Gateway load balancers using the following GatewayClasses:

• gke-l7-rilb
• gke-l7-regional-external-managed
• gke-l7-global-external-managed

In addition to the session affinity types available in Preview, you can now use the STRONG_COOKIE_AFFINITY type, which provides the most persistent session stickiness among the session affinity types available in Google Cloud Application Load Balancers.

The session affinity types require the following minimum GKE versions:

• CLIENT_IP, HEADER_FIELD, GENERATED_COOKIE, and HTTP_COOKIE: version 1.35.2-gke.1269001 or later
• STRONG_COOKIE_AFFINITY: version 1.36.3-gke.1767000 or later

For more information, see Configure session affinity using GCPTrafficDistributionPolicy.