Announcing Istio 1.20.2

Istio 1.20.2 patch release.

Jan 9, 2024

This release note describes what’s different between Istio 1.20.1 and 1.20.2.

Things to know and prepare before upgrading.

Download and install this release.

Visit the documentation for this release.

Inspect the full set of source code changes.

Changes

Added configurable scaling behavior for Gateway HorizontalPodAutoscaler in the helm chart. (usage)
Fixed a bug where overlapping wildcard hosts in a VirtualService produces incorrect routing configurations when wildcard services were selected (e.g. in ServiceEntry). (Issue #45415)
Fixed an issue where Istio was performing additional XDS pushes for StatefulSets and headless Service endpoints while scaling. (Issue #48207)
Fixed an issue where the Istio injection webhook may be modified in dry-run mode. (Issue #48241)
Fixed an issue if DestinationRule’s exportTo includes workload’s current namespace (not ‘.’), other namespaces are ignored from exportTo. (Issue #48349)
Fixed an issue where the QUIC listeners were not correctly created when dual-stack is enabled. (Issue #48336)
Fixed an issue where istioctl proxy-config ecds didn’t display all EcdsConfigDump.
Fixed an issue where new endpoints may not be sent to proxies. (Issue #48373)
Fixed an issue where installing with Stackdriver and using custom configurations would prevent Stackdriver from being enabled.
Fixed an issue where long-lived connections, TCP bytes and gRPC, could result in a proxy memory leak.