KEDA v2.20.0 focuses on architectural evolution and enterprise stability. It migrates to the modern Kubernetes Events API, introduces high-performance optimizations for massive clusters (60k+ objects), and adds core architectural enhancements like scaling modifier fallbacks and AWS cross-account support. New scalers for OpenSearch and Elastic Forecast further expand the ecosystem.

RBAC migration for Kubernetes Events API — If you use custom RBAC, you must manually grant the operator permissions for the new API group before upgrading to avoid losing visibility into KEDA events.

New OpenSearch and Elastic Forecast scalers — Users of Elastic and OpenSearch ecosystems can now natively autoscale their Kubernetes workloads based on search results and forecasted trends.

AWS External ID support for cross-account scaling — Simplifies security management for AWS users by allowing KEDA to access resources across different AWS accounts via a trust relationship.

Large-scale stability improvements for admission webhooks — Prevents the KEDA operator from crashing or slowing down when managing tens of thousands of ScaledObjects, ensuring stability for enterprise-grade clusters.

Deprecation and removal of legacy scaler settings — Existing configurations using subscriptionSize (GCP) or minMetricValue (Huawei) must be updated to the new parameters to avoid scaling failures.