We recently upgraded our EKS cluster from version 1.25 to 1.26, and noticed that the Litmus Helm chart (v3.13.0) and latest Helm chart (v3.16.0) still uses the deprecated API version autoscaling/v2beta2 for the HorizontalPodAutoscaler resource:

The Kubernetes API could not find version "v2beta2" of autoscaling/HorizontalPodAutoscaler for requested resource chaos/litmus-frontend. Version "v2" of autoscaling/HorizontalPodAutoscaler is installed on the destination cluster.

As of Kubernetes 1.26, the autoscaling/v2beta2 API version has been fully deprecated and replaced with the stable autoscaling/v2. This causes Helm/Argo CD sync failures when deploying the litmus-frontend component in modern clusters.

Affected Chart
Chart: litmus
Version: 3.13.0 (also present in latest 3.17.0)
templates: frontend-hpa.yaml