Announcing Istio 1.19.5

This release implements the security updates described in our Dec 12th post, ISTIO-SECURITY-2023-005 along with bug fixes to improve robustness.

This release note describes what’s different between Istio 1.19.4 and 1.19.5.

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Changes

• Fixed an issue where the webhook generated with istioctl tag set is unexpectedly being removed by the installer. (Issue #47423)

• Fixed an issue where multi-cluster leader election cannot prioritize local over remote leaders. (Issue #47901)

• Fixed a memory leak when hostNetwork pods scale up and down. (Issue #47893)

• Fixed a memory leak when WorkloadEntries change their IP address. (Issue #47893)

• Fixed a memory leak when a ServiceEntry is removed. (Issue #47893)

Security update

• Changes to Istio CNI Permissions as described in ISTIO-SECURITY-2023-005.