istioctl Upgrade to Istio 1.15.1 No issues whatsoever by manually upgrading by means of istioctl. Istio 1.15.1 Announcing Istio 1.15.1
istio Upgrade to Istio 1.15.0 No issues whatsoever by manually upgrading by means of istioctl. Istio 1.15.0 Announcing Istio 1.15 Istio 1.15.0 Change Notes