Announcing Istio 1.16.5

This release note describes what’s different between Istio 1.16.4 and 1.16.5.

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Changes

• Updated VirtualService validation to fail on empty prefix header matcher. (Issue #44424)

• Fixed the dns_upstream_failures_total metric that was mistakenly deleted in the previous release. (Issue #44151)

• Fixed a bug where services are missing in gateways if PILOT_FILTER_GATEWAY_CLUSTER_CONFIG is enabled. (Issue #44439)

• Fixed an issue with forward compatibility with Istio 1.18+ Kubernetes Gateway Automated Deployment. To have a seamless upgrade to 1.18+, users of this feature should first adopt this patch release. (Issue #44164)