Announcing Istio 1.19.5

Istio 1.19.5 patch release.

Dec 12, 2023

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.

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

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)