During February 2026, RPB focused on improving the robustness of StatefulSet pod deletion in the kubernetes/kubernetes repository. Addressing a bug that could cause scale or deletion deadlocks in large StatefulSets, RPB enhanced the controller’s error handling by ensuring pod deletions continue smoothly even when 404 NotFound errors occur. The work involved refactoring the Go codebase to remove redundant NotFound checks, aligning StatefulSet error handling with the established DaemonSet approach for consistency and maintainability. This backend development effort deepened the reliability of Kubernetes controllers, particularly in environments where informer caches may become stale during parallel operations.