# istio_alpn-gateway-auto.yaml
apiVersion: release-notes/v2
kind: bug-fix
area: traffic-management
issue:
- 37196
releaseNotes:
- |
  **Fixed** an issue causing traffic from a gateway to a service with an [undeclared protocol](/docs/ops/configuration/traffic-management/protocol-selection/#automatic-protocol-selection) being treated as TCP traffic rather than HTTP.