# istio_46719.yaml
apiVersion: release-notes/v2
kind: bug-fix
area: traffic-management
issue:
  - 46719
releaseNotes:
  - |
    **Added** gated flag `ISTIO_ENABLE_IPV4_OUTBOUND_LISTENER_FOR_IPV6_CLUSTERS` to manage an additional outbound listener for IPv6-only clusters to deal with IPv4 NAT outbound traffic.
    This is useful for IPv6-only cluster environments such as EKS which manages both egress-only IPv4 as well as IPv6 IPs.