Significant Changes

ClusterRole and ClusterRoleBinding names have been updated to be unique (#37197)

ClusterRoles and ClusterRoleBindings created when multiNamespaceMode is enabled have been renamed to ensure unique names:

• {{ include "airflow.fullname" . }}-pod-launcher-role has been renamed to {{ .Release.Namespace }}-{{ include "airflow.fullname" . }}-pod-launcher-role
• {{ include "airflow.fullname" . }}-pod-launcher-rolebinding has been renamed to {{ .Release.Namespace }}-{{ include "airflow.fullname" . }}-pod-launcher-rolebinding
• {{ include "airflow.fullname" . }}-pod-log-reader-role has been renamed to {{ .Release.Namespace }}-{{ include "airflow.fullname" . }}-pod-log-reader-role
• {{ include "airflow.fullname" . }}-pod-log-reader-rolebinding has been renamed to {{ .Release.Namespace }}-{{ include "airflow.fullname" . }}-pod-log-reader-rolebinding
• {{ include "airflow.fullname" . }}-scc-rolebinding has been renamed to {{ .Release.Namespace }}-{{ include "airflow.fullname" . }}-scc-rolebinding

workers.safeToEvict default changed to False (#40229)

The default for workers.safeToEvict now defaults to False. This is a safer default as it prevents the nodes workers are running on from being scaled down by the K8s Cluster Autoscaler <https://kubernetes.io/docs/concepts/cluster-administration/cluster-autoscaling/#cluster-autoscaler>_. If you would like to retain the previous behavior, you can set this config to True.

Default Airflow image is updated to 2.9.2 (#40160)

The default Airflow image that is used with the Chart is now 2.9.2, previously it was 2.8.3.

Default StatsD image is updated to v0.26.1 (#38416)

The default StatsD image that is used with the Chart is now v0.26.1, previously it was v0.26.0.

New Features

• Enable MySQL KEDA support for triggerer (#37365)
• Allow AWS Executors (#38524)

Improvements

• Allow valueFrom in env config of components (#40135)
• Enable templating in extraContainers and extraInitContainers (#38507)
• Add safe-to-evict annotation to pod-template-file (#37352)
• Support workers.command for KubernetesExecutor (#39132)
• Add priorityClassName to Jobs (#39133)
• Add Kerberos sidecar to pod-template-file (#38815)
• Add templated field support for extra containers (#38510)

Bug Fixes

• Set workers.safeToEvict default to False (#40229)

Doc only changes

• Document extraContainers and extraInitContainers that are templated (#40033)
• Fix typo in HorizontalPodAutoscaling documentation (#39307)
• Fix supported k8s versions in docs (#39172)
• Fix typo in YAML path for brokerUrlSecretName (#39115)

Misc

• Default Airflow version to 2.9.2 (#40160)
• Limit Redis image to 7.2 (#38928)
• Build Helm values schemas with Kubernetes 1.29 resources (#38460)
• Add missing containers to resources docs (#38534)
• Upgrade StatsD Exporter image to 0.26.1 (#38416)
• Remove K8S 1.25 support (#38367)