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This release comes with enhancements to Gateway API support, new metrics capabilities, and various bug fixes.
Flagger now supports Gateway API v1.4.0 and adds CORS policy configuration for Gateway API HTTPRoutes.
For more information, please see the Gateway API tutorial.
Session affinity support has been enhanced with cookie attributes configuration for better control over session management.
A new
.spec.service.unmanagedMetadatafield has been added to the Canary API to allow 3rd-party controllers to set labels and annotations on the Kubernetes Services created by Flagger.When running Flagger on Kubernetes 1.33 or later, users can now specify the traffic distribution using the new
.spec.service.trafficDistributionCanary field. Depending on the Kubernetes version the traffic distribution can be set toPreferClose,PreferSameZoneorPreferSameNode. See the Kubernetes Service docs for more details.This release is built with Go 1.25. The Kubernetes dependencies have been updated to 1.34, and the Traefik API has been migrated from
traefik.containo.ustotraefik.io.