---
name: containers-cl-add-ons-istio
title: Istio add-on version change log
description: Review the version history for Istio.
last-updated: 2026-08-07
---

> ## Documentation Index
> The table of contents for this documentation set is at https://cloud.ibm.com/docs/containers?format=markdown
> The index for all IBM Cloud docs is at: https://cloud.ibm.com/docs/llms.txt
> Use these files to discover more information as needed.

# Istio add-on version change log
{: #cl-add-ons-istio}


Patch updates
:   Patch updates are delivered automatically by IBM and don't contain any feature updates or changes in the supported add-on and cluster versions.

Release updates
:   Release updates contain new features or changes in the supported add-on or cluster versions. You must manually apply release updates to your cluster autoscaler add-on.

To view a list of add-ons and the supported cluster versions, run the following command or see the [Supported cluster add-ons table](https://cloud.ibm.com/docs/containers?topic=containers-supported-cluster-addon-versions&format=markdown).

```sh
ibmcloud ks cluster addon versions
```
{: pre}


Review the version history for Istio.
{: shortdesc}


## Version 1.30
{: #cl-add-ons-istio-1.30}


### Version 1.30 - 1.30.2, released 21 July 2026
{: #cl-add-ons-istio-1302}

[Default version]{: tag-green}

- Updates in this version: See the Istio release notes for [Istio 1.29.6](https://istio.io/latest/news/releases/1.29.x/announcing-1.29.6/){: external}, [Istio 1.30.1](https://istio.io/latest/news/releases/1.30.x/announcing-1.30.1/){: external} and [Istio 1.30.2](https://istio.io/latest/news/releases/1.30.x/announcing-1.30.2/){: external}


## Version 1.29
{: #cl-add-ons-istio-1.29}


### Version 1.29 - 1.29.5, released 15 July 2026
{: #cl-add-ons-istio-1295}

[Default version]{: tag-green}

- Updates in this version: See the Istio release notes for [Istio 1.29.5](https://istio.io/latest/news/releases/1.29.x/announcing-1.29.5/){: external}.


### Version 1.29 - 1.29.4, released 17 June 2026
{: #cl-add-ons-istio-1294}

- Updates in this version: See the Istio release notes for [Istio 1.29.3](https://istio.io/latest/news/releases/1.29.x/announcing-1.29.3/){: external} and [Istio 1.29.4](https://istio.io/latest/news/releases/1.29.x/announcing-1.29.4/){: external}.


## Version 1.28
{: #cl-add-ons-istio-1.28}


### Version 1.28 - 1.28.10, released 15 July 2026
{: #cl-add-ons-istio-12810}

[Default version]{: tag-green}

- Updates in this version: See the Istio release notes for [Istio 1.28.9](https://istio.io/latest/news/releases/1.28.x/announcing-1.28.9/){: external} and [Istio 1.28.10](https://istio.io/latest/news/releases/1.28.x/announcing-1.28.10/){: external}.


### Version 1.28 - 1.28.8, released 17 June 2026
{: #cl-add-ons-istio-1288}

- Updates in this version: See the Istio release notes for [Istio 1.28.7](https://istio.io/latest/news/releases/1.28.x/announcing-1.28.7/){: external} and [Istio 1.28.8](https://istio.io/latest/news/releases/1.28.x/announcing-1.28.8/){: external}.


### Version 1.28.6, released 30 April 2026
{: #1286}

Review the changes that are included in version 1.28.6 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.27.9

Current version
:   1.28.6

Updates in this version
:   See the Istio release notes for [Istio 1.28.0](https://istio.io/latest/news/releases/1.28.x/announcing-1.28/){: external}, [Istio 1.28.1](https://istio.io/latest/news/releases/1.28.x/announcing-1.28.1/){: external}, [Istio 1.28.2](https://istio.io/latest/news/releases/1.28.x/announcing-1.28.2/){: external}, [Istio 1.28.3](https://istio.io/latest/news/releases/1.28.x/announcing-1.28.3/){: external}, [Istio 1.28.4](https://istio.io/latest/news/releases/1.28.x/announcing-1.28.4/){: external}, [Istio 1.28.5](https://istio.io/latest/news/releases/1.28.x/announcing-1.28.5/){: external}, and [Istio 1.28.6](https://istio.io/latest/news/releases/1.28.x/announcing-1.28.6/){: external}.

:   Resolves the following CVEs:
    - [CVE-2026-28387](https://www.cve.org/CVERecord?id=CVE-2026-28387){: external}
    - [CVE-2026-28388](https://www.cve.org/CVERecord?id=CVE-2026-28388){: external}
    - [CVE-2026-31789](https://www.cve.org/CVERecord?id=CVE-2026-31789){: external}
    - [CVE-2026-28389](https://www.cve.org/CVERecord?id=CVE-2026-28389){: external}
    - [CVE-2026-28390](https://www.cve.org/CVERecord?id=CVE-2026-28390){: external}
    - [CVE-2026-31790](https://www.cve.org/CVERecord?id=CVE-2026-31790){: external}


## Version 1.27
{: #v127}


### Version 1.27.9, released 28 April 2026
{: #1279}

Review the changes that are included in version 1.27.9 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.27.8

Current version
:   1.27.9

Updates in this version
:   See the Istio release notes for [Istio 1.27.9](https://istio.io/latest/news/releases/1.27.x/announcing-1.27.9/){: external}.

:   Resolves the following CVEs:
    - [CVE-2026-35535](https://www.cve.org/CVERecord?id=CVE-2026-35535){: external}
    - [CVE-2026-1965](https://www.cve.org/CVERecord?id=CVE-2026-1965){: external}
    - [CVE-2026-3731](https://www.cve.org/CVERecord?id=CVE-2026-3731){: external}
    - [CVE-2026-3783](https://www.cve.org/CVERecord?id=CVE-2026-3783){: external}
    - [CVE-2026-29111](https://www.cve.org/CVERecord?id=CVE-2026-29111){: external}
    - [CVE-2025-0167](https://www.cve.org/CVERecord?id=CVE-2025-0167){: external}
    - [CVE-2026-3784](https://www.cve.org/CVERecord?id=CVE-2026-3784){: external}


### Version 1.27.8, released 27 March 2026
{: #1278}

Review the changes that are included in version 1.27.8 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.26.8

Current version
:   1.27.8

Updates in this version
:   See the Istio release notes for [Istio 1.27.0](https://istio.io/latest/news/releases/1.27.x/announcing-1.27/){: external}, [Istio 1.27.1](https://istio.io/latest/news/releases/1.27.x/announcing-1.27.1/){: external}, [Istio 1.27.2](https://istio.io/latest/news/releases/1.27.x/announcing-1.27.2/){: external}, [Istio 1.27.3](https://istio.io/latest/news/releases/1.27.x/announcing-1.27.3/){: external}, [Istio 1.27.4](https://istio.io/latest/news/releases/1.27.x/announcing-1.27.4/){: external}, [Istio 1.27.5](https://istio.io/latest/news/releases/1.27.x/announcing-1.27.5/){: external}, [Istio 1.27.6](https://istio.io/latest/news/releases/1.27.x/announcing-1.27.6/){: external}, [Istio 1.27.7](https://istio.io/latest/news/releases/1.27.x/announcing-1.27.7/){: external}, and [Istio 1.27.8](https://istio.io/latest/news/releases/1.27.x/announcing-1.27.8/){: external}.

:   Resolves the following CVEs:
    - [CVE-2026-22796](https://www.cve.org/CVERecord?id=CVE-2026-22796){: external}
    - [CVE-2026-0965](https://www.cve.org/CVERecord?id=CVE-2026-0965){: external}
    - [CVE-2025-68973](https://www.cve.org/CVERecord?id=CVE-2025-68973){: external}
    - [CVE-2025-15281](https://www.cve.org/CVERecord?id=CVE-2025-15281){: external}
    - [CVE-2026-0968](https://www.cve.org/CVERecord?id=CVE-2026-0968){: external}
    - [CVE-2026-0964](https://www.cve.org/CVERecord?id=CVE-2026-0964){: external}
    - [CVE-2025-15224](https://www.cve.org/CVERecord?id=CVE-2025-15224){: external}
    - [CVE-2025-8277](https://www.cve.org/CVERecord?id=CVE-2025-8277){: external}
    - [CVE-2026-22795](https://www.cve.org/CVERecord?id=CVE-2026-22795){: external}
    - [CVE-2025-9820](https://www.cve.org/CVERecord?id=CVE-2025-9820){: external}
    - [CVE-2025-14524](https://www.cve.org/CVERecord?id=CVE-2025-14524){: external}
    - [CVE-2025-69421](https://www.cve.org/CVERecord?id=CVE-2025-69421){: external}
    - [CVE-2025-15079](https://www.cve.org/CVERecord?id=CVE-2025-15079){: external}
    - [CVE-2026-0915](https://www.cve.org/CVERecord?id=CVE-2026-0915){: external}
    - [CVE-2025-13151](https://www.cve.org/CVERecord?id=CVE-2025-13151){: external}
    - [CVE-2025-14819](https://www.cve.org/CVERecord?id=CVE-2025-14819){: external}
    - [CVE-2026-0861](https://www.cve.org/CVERecord?id=CVE-2026-0861){: external}
    - [CVE-2025-14831](https://www.cve.org/CVERecord?id=CVE-2025-14831){: external}
    - [CVE-2025-69419](https://www.cve.org/CVERecord?id=CVE-2025-69419){: external}
    - [CVE-2026-0966](https://www.cve.org/CVERecord?id=CVE-2026-0966){: external}
    - [CVE-2025-15467](https://www.cve.org/CVERecord?id=CVE-2025-15467){: external}
    - [CVE-2026-0967](https://www.cve.org/CVERecord?id=CVE-2026-0967){: external}
    - [CVE-2025-69420](https://www.cve.org/CVERecord?id=CVE-2025-69420){: external}
    - [CVE-2025-68160](https://www.cve.org/CVERecord?id=CVE-2025-68160){: external}
    - [CVE-2025-10148](https://www.cve.org/CVERecord?id=CVE-2025-10148){: external}
    - [CVE-2025-69418](https://www.cve.org/CVERecord?id=CVE-2025-69418){: external}
    - [CVE-2025-14017](https://www.cve.org/CVERecord?id=CVE-2025-14017){: external}


## Version 1.26
{: #v126}


### Version 1.26.6, released 15 December 2025
{: #1266}

Review the changes that are included in version 1.26.6 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.25.5

Current version
:   1.26.6

Updates in this version
:   See the Istio release notes for [Istio 1.26.0](https://istio.io/latest/news/releases/1.26.x/announcing-1.26/){: external}, [Istio 1.26.1](https://istio.io/latest/news/releases/1.26.x/announcing-1.26.1/){: external}, [Istio 1.26.2](https://istio.io/latest/news/releases/1.26.x/announcing-1.26.2/){: external}, [Istio 1.26.3](https://istio.io/latest/news/releases/1.26.x/announcing-1.26.3/){: external}, [Istio 1.26.4](https://istio.io/latest/news/releases/1.26.x/announcing-1.26.4/){: external}, [Istio 1.26.5](https://istio.io/latest/news/releases/1.26.x/announcing-1.26.5/){: external}, and , [Istio 1.26.6](https://istio.io/latest/news/releases/1.26.x/announcing-1.26.6/){: external},

:   Resolves the following CVEs:
    - [CVE-2025-32463](https://www.cve.org/CVERecord?id=CVE-2025-32463){: external}
    - [CVE-2025-32988](https://www.cve.org/CVERecord?id=CVE-2025-32988){: external}
    - [CVE-2025-47268](https://www.cve.org/CVERecord?id=CVE-2025-47268){: external}
    - [CVE-2025-5372](https://www.cve.org/CVERecord?id=CVE-2025-5372){: external}
    - [CVE-2025-6297](https://www.cve.org/CVERecord?id=CVE-2025-6297){: external}
    - [CVE-2025-32989](https://www.cve.org/CVERecord?id=CVE-2025-32989){: external}
    - [CVE-2025-4878](https://www.cve.org/CVERecord?id=CVE-2025-4878){: external}
    - [CVE-2025-5351](https://www.cve.org/CVERecord?id=CVE-2025-5351){: external}
    - [CVE-2025-5987](https://www.cve.org/CVERecord?id=CVE-2025-5987){: external}
    - [CVE-2025-4877](https://www.cve.org/CVERecord?id=CVE-2025-4877){: external}
    - [CVE-2025-48964](https://www.cve.org/CVERecord?id=CVE-2025-48964){: external}
    - [CVE-2025-32990](https://www.cve.org/CVERecord?id=CVE-2025-32990){: external}
    - [CVE-2025-9230](https://www.cve.org/CVERecord?id=CVE-2025-9230){: external}
    - [CVE-2025-32462](https://www.cve.org/CVERecord?id=CVE-2025-32462){: external}
    - [CVE-2025-5318](https://www.cve.org/CVERecord?id=CVE-2025-5318){: external}
    - [CVE-2025-40909](https://www.cve.org/CVERecord?id=CVE-2025-40909){: external}
    - [CVE-2025-5702](https://www.cve.org/CVERecord?id=CVE-2025-5702){: external}
    - [CVE-2024-10963](https://www.cve.org/CVERecord?id=CVE-2024-10963){: external}
    - [CVE-2024-8058](https://www.cve.org/CVERecord?id=CVE-2024-8058){: external}
    - [CVE-2024-6395](https://www.cve.org/CVERecord?id=CVE-2024-6395){: external} 


### Version 1.26.8, released 21 January 2025
{: #1268}

Review the changes that are included in version 1.26.8 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.26.6

Current version
:   1.26.8

Updates in this version
:   See the Istio release notes for [Istio 1.26.7](https://istio.io/latest/news/releases/1.26.x/announcing-1.26.7/){: external}, and , [Istio 1.26.8](https://istio.io/latest/news/releases/1.26.x/announcing-1.26.8/){: external},

:   Resolves the following CVEs:
    - [CVE-2025-8114](https://www.cve.org/CVERecord?id=CVE-2025-8114){: external}


## Version 1.25
{: #v125}


### Version 1.25.5, released 05 November 2025
{: #1255}

Review the changes that are included in version 1.25.5 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.24.6

Current version
:   1.25.5

Updates in this version
:   This is the final version of `addon-istio` 1.25. `addon-istio` 1.25.5 is unsupported on 15 May 2026. Update your Istio components to the latest patch version of Istio 1.27 that is supported by IBM Cloud Kubernetes Service before that date.

:   `addon-istio` 1.27 is available and supported on IBM Cloud Kubernetes Service versions 1.32 and 1.33. To upgrade from 1.25 to 1.27, follow [Updating to a minor version of the Istio add-on](https://cloud.ibm.com/docs/containers?topic=containers-istio-update&format=markdown#istio_minor). You must complete both minor upgrades, from 1.25 to 1.26 and from 1.26 to 1.27.

:   See the Istio release notes for [Istio 1.25.0](https://istio.io/latest/news/releases/1.25.x/announcing-1.25/){: external}, [Istio 1.25.1](https://istio.io/latest/news/releases/1.25.x/announcing-1.25.1/){: external}, [Istio 1.25.2](https://istio.io/latest/news/releases/1.25.x/announcing-1.25.2/){: external}, [Istio 1.25.3](https://istio.io/latest/news/releases/1.25.x/announcing-1.25.3/){: external}, [Istio 1.25.4](https://istio.io/latest/news/releases/1.25.x/announcing-1.25.4/){: external}, and [Istio 1.25.5](https://istio.io/latest/news/releases/1.25.x/announcing-1.25.5/){: external}.

:   Resolves the following CVEs:
    - [CVE-2025-3576](https://www.cve.org/CVERecord?id=CVE-2025-3576){: external}
    - [CVE-2025-4598](https://www.cve.org/CVERecord?id=CVE-2025-4598){: external}
    - [CVE-2025-46836](https://www.cve.org/CVERecord?id=CVE-2025-46836){: external}
    - [CVE-2025-6020](https://www.cve.org/CVERecord?id=CVE-2025-6020){: external}


## Version 1.24
{: #v124}


### Version 1.24.6, released 26 September 2025
{: #1246}

Review the changes that are included in version 1.24.6 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.23.6

Current version
:   1.24.6

Updates in this version
:   The Istio managed add-on is migrating from the in-cluster operator in 1.23.x to a cyclic Helm upgrade installation in 1.24. This upgrade requires a different process than earlier versions, so  review the [migration documentation](https://cloud.ibm.com/docs/containers?topic=containers-istio-update&format=markdown#istio_minor) before getting started.

:   With the move to a Helm-based installation, the gateways are switching from the `istio/gateways` chart that the in-cluster operator used to the `istio/gateway` chart that Istio recommends for Helm-based Istio. The main change is that the Istio gateways are set to `image: auto` to have the sidecar injector automatically select the image to use.

:   With the move away from the `IstioOperator` `CustomResource` to use the Helm `value.yaml` charts, `addon-istio` is no longer supporting more than 1 default gateway (`istio-ingressgateway-public-2` and `istio-ingressgateway-public-3`). However, the default gateway's `value.yaml` can be customized by the user and the user can install the previous gateways as additional custom gateways by using Helm.

:   See the Istio release notes for [Istio 1.24.0](https://istio.io/latest/news/releases/1.24.x/announcing-1.24/){: external}, Istio 1.24.1, [Istio 1.24.2](https://istio.io/latest/news/releases/1.24.x/announcing-1.24.2/){: external}, [Istio 1.24.3](https://istio.io/latest/news/releases/1.24.x/announcing-1.24.3/){: external}, [Istio 1.24.4](https://istio.io/latest/news/releases/1.24.x/announcing-1.24.4/){: external}, [Istio 1.24.5](https://istio.io/latest/news/releases/1.24.x/announcing-1.24.5/){: external}, and [Istio 1.24.6](https://istio.io/latest/news/releases/1.24.x/announcing-1.24.6/){: external}.

:   Resolves the following CVEs:
    - [CVE-2024-56406](https://www.cve.org/CVERecord?id=CVE-2024-56406){: external}
    - [CVE-2025-30258](https://www.cve.org/CVERecord?id=CVE-2025-30258){: external}
    - [CVE-2025-31115](https://www.cve.org/CVERecord?id=CVE-2025-31115){: external}


## Version 1.23
{: #v123}


### Version 1.23.6, released 29 April 2025
{: #1236}

Review the changes that are included in version 1.23.6 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.23.5

Current version
:   1.23.6

Updates in this version
:   See the Istio release notes for [Istio 1.23.6](https://istio.io/latest/news/releases/1.23.x/announcing-1.23.6/.){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-25260](https://www.cve.org/CVERecord?id=CVE-2024-25260){: external}
    - [CVE-2025-1365](https://www.cve.org/CVERecord?id=CVE-2025-1365){: external}
    - [CVE-2025-1371](https://www.cve.org/CVERecord?id=CVE-2025-1371){: external}
    - [CVE-2025-1372](https://www.cve.org/CVERecord?id=CVE-2025-1372){: external}
    - [CVE-2025-1377](https://www.cve.org/CVERecord?id=CVE-2025-1377){: external}
    - [CVE-2024-12243](https://www.cve.org/CVERecord?id=CVE-2024-12243){: external}
    - [CVE-2024-26458](https://www.cve.org/CVERecord?id=CVE-2024-26458){: external}
    - [CVE-2024-26461](https://www.cve.org/CVERecord?id=CVE-2024-26461){: external}
    - [CVE-2024-26462](https://www.cve.org/CVERecord?id=CVE-2024-26462){: external}
    - [CVE-2025-24528](https://www.cve.org/CVERecord?id=CVE-2025-24528){: external}
    - [CVE-2024-12133](https://www.cve.org/CVERecord?id=CVE-2024-12133){: external}
    - [CVE-2025-0395](https://www.cve.org/CVERecord?id=CVE-2025-0395){: external}
    - [CVE-2024-13176](https://www.cve.org/CVERecord?id=CVE-2024-13176){: external}
    - [CVE-2024-9143](https://www.cve.org/CVERecord?id=CVE-2024-9143){: external}
    - [CVE-2024-3596](https://www.cve.org/CVERecord?id=CVE-2024-3596){: external}
    - [CVE-2025-1390](https://www.cve.org/CVERecord?id=CVE-2025-1390){: external}
    - [usn-7369-1](https://ubuntu.com/security/notices/USN-7369-1){: external}
    - [usn-7281-1](https://ubuntu.com/security/notices/USN-7281-1){: external}
    - [usn-7314-1](https://ubuntu.com/security/notices/USN-7314-1){: external}
    - [usn-7275-1](https://ubuntu.com/security/notices/USN-7275-1){: external}
    - [usn-7259-1](https://ubuntu.com/security/notices/USN-7259-1){: external}
    - [usn-7264-1](https://ubuntu.com/security/notices/USN-7264-1){: external}
    - [usn-7055-1](https://ubuntu.com/security/notices/USN-7055-1){: external}
    - [usn-7287-1](https://ubuntu.com/security/notices/USN-7287-1){: external}


### Version 1.23.5, released 4 March 2025
{: #1235}

Review the changes that are included in version 1.23.5 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.23.4

Current version
:   1.23.5

Updates in this version
:   See the Istio release notes for [Istio 1.23.5](https://istio.io/latest/news/releases/1.23.x/announcing-1.23.5/){: external}.
:   Expanded testing and support to IKS 1.31.
:   Resolves the following CVEs:
    - [CVE-2025-0665](https://www.cve.org/CVERecord?id=CVE-2025-0665){: external}
    - [CVE-2024-11053](https://www.cve.org/CVERecord?id=CVE-2024-11053){: external}


### Version 1.23.1, released 20 September 2024
{: #1231}

Review the changes that are included in version 1.23.1 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.22.4

Current version
:   1.23.1

Updates in this version
:   See the Istio release notes for [Istio 1.23.0](https://istio.io/latest/news/releases/1.23.x/announcing-1.23/){: external} and [Istio 1.23.1](https://istio.io/latest/news/releases/1.23.x/announcing-1.23.1/.){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-6119](https://www.cve.org/CVERecord?id=CVE-2024-6119){: external}
    - [usn-6986-1](https://ubuntu.com/security/notices/USN-6986-1){: external}


### Version 1.23.4, released 28 Jan 2025
{: #1234}

Review the changes that are included in version 1.23.4 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.23.3

Current version
:   1.23.4

Updates in this version
:   See the Istio release notes for [Istio 1.23.4](https://istio.io/latest/news/releases/1.23.x/announcing-1.23.4/){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-9681](https://www.cve.org/CVERecord?id=CVE-2024-9681){: external}


### Version 1.23.3, released 3 Dec 2024
{: #1233}

Review the changes that are included in version 1.23.3 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.23.2

Current version
:   1.23.3

Updates in this version
:   See the Istio release notes for [Istio 1.23.3](https://istio.io/latest/news/releases/1.23.x/announcing-1.23.3/){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-8096](https://www.cve.org/CVERecord?id=CVE-2024-8096){: external}


### Version 1.23.2, released 9 Oct 2024
{: #1232}

Review the changes that are included in version 1.23.2 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.23.1

Current version
:   1.23.2

Updates in this version
:   See the Istio release notes for [Istio 1.23.2](https://istio.io/latest/news/releases/1.23.x/announcing-1.23.2/){: external}.


## Version 1.22
{: #v122}


### Version 1.22.3, released 20 August 2024
{: #1223}

Review the changes that are included in version 1.22.3 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.22.1

Current version
:   1.22.3

Updates in this version
:   See the Istio release notes for [Istio 1.22.2](https://istio.io/latest/news/releases/1.22.x/announcing-1.22.2/){: external} and [Istio 1.22.3](https://istio.io/latest/news/releases/1.22.x/announcing-1.22.3/){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-33599](https://www.cve.org/CVERecord?id=CVE-2024-33599){: external}
    - [CVE-2024-33600](https://www.cve.org/CVERecord?id=CVE-2024-33600){: external}
    - [CVE-2024-33601](https://www.cve.org/CVERecord?id=CVE-2024-33601){: external}
    - [CVE-2024-33602](https://www.cve.org/CVERecord?id=CVE-2024-33602){: external}
    - [CVE-2022-40735](https://www.cve.org/CVERecord?id=CVE-2022-40735){: external}
    - [CVE-2024-28182](https://www.cve.org/CVERecord?id=CVE-2024-28182){: external}
    - [usn-6804-1](https://ubuntu.com/security/notices/USN-6804-1){: external}
    - [usn-6854-1](https://ubuntu.com/security/notices/USN-6854-1){: external}
    - [usn-6754-1](https://ubuntu.com/security/notices/USN-6754-1){: external}

:   For more information, see the [Istio security bulletin 2024-005](https://istio.io/latest/news/security/istio-security-2024-005/){: external}.


### Version 1.21.5, released 20 August 2024
{: #1215}

Review the changes that are included in version 1.21.5 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.21.3

Current version
:   1.21.5

Updates in this version
:   See the Istio release notes for [Istio 1.21.4](https://istio.io/latest/news/releases/1.21.x/announcing-1.21.4/){: external} and [Istio 1.21.5](https://istio.io/latest/news/releases/1.21.x/announcing-1.21.5/){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-33599](https://www.cve.org/CVERecord?id=CVE-2024-33599){: external}
    - [CVE-2024-33600](https://www.cve.org/CVERecord?id=CVE-2024-33600){: external}
    - [CVE-2024-33601](https://www.cve.org/CVERecord?id=CVE-2024-33601){: external}
    - [CVE-2024-33602](https://www.cve.org/CVERecord?id=CVE-2024-33602){: external}
    - [CVE-2022-40735](https://www.cve.org/CVERecord?id=CVE-2022-40735){: external}
    - [usn-6804-1](https://ubuntu.com/security/notices/USN-6804-1){: external}
    - [usn-6854-1](https://ubuntu.com/security/notices/USN-6854-1){: external}

:   For more information, see the [Istio security bulletin 2024-005](https://istio.io/latest/news/security/istio-security-2024-005/){: external}.


### Version 1.20.8, released 20 August 2024
{: #1208}

Review the changes that are included in version 1.20.8 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.20.7

Current version
:   1.20.8

Updates in this version
:   This is the final version of `addon-istio` 1.20. `addon-istio` 1.20 is unsupported on 18 September 2024.
:   See the Istio release notes for [Istio 1.20.8](https://istio.io/latest/news/releases/1.20.x/announcing-1.20.8/){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-33599](https://www.cve.org/CVERecord?id=CVE-2024-33599){: external}
    - [CVE-2024-33600](https://www.cve.org/CVERecord?id=CVE-2024-33600){: external}
    - [CVE-2024-33601](https://www.cve.org/CVERecord?id=CVE-2024-33601){: external}
    - [CVE-2024-33602](https://www.cve.org/CVERecord?id=CVE-2024-33602){: external}
    - [usn-6804-1](https://ubuntu.com/security/notices/USN-6804-1){: external}


### Version 1.22.4, released 18 August 2024
{: #1224}

Review the changes that are included in version 1.22.4 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.22.3

Current version
:   1.22.4

Updates in this version
:   See the Istio release notes for [Istio 1.22.4](https://istio.io/latest/news/releases/1.22.x/announcing-1.22.4/){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-4603](https://www.cve.org/CVERecord?id=CVE-2024-4603){: external}
    - [CVE-2024-37371](https://www.cve.org/CVERecord?id=CVE-2024-37371){: external}
    - [CVE-2024-2511](https://www.cve.org/CVERecord?id=CVE-2024-2511){: external}
    - [CVE-2024-4741](https://www.cve.org/CVERecord?id=CVE-2024-4741){: external}
    - [CVE-2022-37370](https://www.cve.org/CVERecord?id=CVE-2022-37370){: external}
    - [CVE-2024-5535](https://www.cve.org/CVERecord?id=CVE-2024-5535){: external}
    - [CVE-2024-7264](https://www.cve.org/CVERecord?id=CVE-2024-7264){: external}
    - [usn-6937-1](https://ubuntu.com/security/notices/USN-6937-1){: external}
    - [usn-6947-1](https://ubuntu.com/security/notices/USN-6947-1){: external}
    - [usn-6944-1](https://ubuntu.com/security/notices/USN-6944-1){: external}


### Version 1.22.1, released 21 June 2024
{: #1221}

Review the changes that are included in version 1.22.1 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.21.3

Current version
:   1.22.1

Updates in this version
:   See the Istio release notes for [Istio 1.22.0](https://istio.io/latest/news/releases/1.22.x/announcing-1.22/){: external} and [Istio 1.22.1](https://istio.io/latest/news/releases/1.22.x/announcing-1.22.1/){: external}.


## Unsupported: Version 1.21
{: #v121}

Version 1.21 of the managed Istio add-on is unsupported.
{: important}


### Version 1.21.3, released 19 June 2024
{: #1213}

Review the changes that are included in version 1.21.3 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.21.2

Current version
:   1.21.3

Updates in this version
:   See the Istio release notes for [Istio 1.21.3](https://istio.io/latest/news/releases/1.21.x/announcing-1.21.3/.){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-2961](https://www.cve.org/CVERecord?id=CVE-2024-2961){: external}
    - [CVE-2024-28182](https://www.cve.org/CVERecord?id=CVE-2024-28182){: external}
    - [usn- 6737-1](https://ubuntu.com/security/notices/USN-6737-1){: external}
    - [usn-6754-1](https://ubuntu.com/security/notices/USN-6754-1){: external}

:   For more information, see the [Istio security bulletin 2024-004](https://istio.io/latest/news/security/istio-security-2024-004/){: external}


### Version 1.20.7, released 19 June 2024
{: #1207}

Review the changes that are included in version 1.20.7 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.20.6

Current version
:   1.20.7

Updates in this version
:   See the Istio release notes for [Istio 1.20.7](https://istio.io/latest/news/releases/1.20.x/announcing-1.20.7/.){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-2961](https://www.cve.org/CVERecord?id=CVE-2024-2961){: external}
    - [CVE-2024-28182](https://www.cve.org/CVERecord?id=CVE-2024-28182){: external}
    - [usn- 6737-1](https://ubuntu.com/security/notices/USN-6737-1){: external}
    - [usn-6754-1](https://ubuntu.com/security/notices/USN-6754-1){: external}

:   For more information, see the [Istio security bulletin 2024-004](https://istio.io/latest/news/security/istio-security-2024-004/){: external}   


### Version 1.21.2, released 8 May 2024
{: #1212}

Review the changes that are included in version 1.21.2 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.21.1

Current version
:   1.21.2

Updates in this version
:   For more information, see the [Istio security bulletin 2024-003](https://istio.io/latest/news/security/istio-security-2024-003){: external}.
:   See the Istio release notes for [Istio 1.21.2](https://istio.io/latest/news/releases/1.21.x/announcing-1.21.2/.){: external}.
:   Resolves the following CVEs:
    - USN-6733-1
    - CVE-2024-28835
    - CVE-2024-28834 


### Version 1.20.6, released 8 May 2024
{: #1206}

Review the changes that are included in version 1.20.6 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.20.5

Current version
:   1.20.6

Updates in this version
:   For more information, see the [Istio security bulletin 2024-003](https://istio.io/latest/news/security/istio-security-2024-003){: external}.
:   See the Istio release notes for [Istio 1.20.6](https://istio.io/latest/news/releases/1.20.x/announcing-1.20.6/.){: external}.
:   Resolves the following CVEs:
    - USN-6733-1
    - CVE-2024-28835
    - CVE-2024-28834 


### Version 1.21.1, released 26 April 2024
{: #1211}

Review the changes that are included in version 1.21.1 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.20.5

Current version
:   1.21.1

Updates in this version
:   See the Istio release notes for [Istio 1.21.0](https://istio.io/latest/news/releases/1.21.x/announcing-1.21/){: external} and [Istio 1.21.1](https://istio.io/latest/news/releases/1.21.x/announcing-1.21.1/){: external}.
:   `Addon-Istio` no longer deletes the `managed-istio` IOP when you disable the add-on. If you choose to disable `addon-istio`, you can choose between uninstalling or no longer managing Istio. See the [Setting up Istio](https://cloud.ibm.com/docs/containers?topic=containers-istio&format=markdown) documentation for more information.


## Unsupported: Version 1.20
{: #v120}

Version 1.20 of the managed Istio add-on is unsupported. 
{: important}


### Version 1.20.5, released 24 April 2024
{: #1205}

Review the changes that are included in version 1.20.5 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.20.4

Current version
:   1.20.5

Updates in this version
:   For more information, see the [Istio security bulletin 2024-002](https://istio.io/latest/news/security/istio-security-2024-002){: external}.

:   See the Istio release notes for [Istio 1.20.5](https://istio.io/latest/news/releases/1.20.x/announcing-1.20.5/){: external}.

:   Resolves the following CVEs:
    - [CVE-2024-2398](https://nvd.nist.gov/vuln/detail/CVE-2024-2398){: external}
    - [CVE-2024-28085](https://nvd.nist.gov/vuln/detail/CVE-2024-28085){: external}
    - [CVE-2022-3715](https://nvd.nist.gov/vuln/detail/CVE-2022-3715){: external}


### Version 1.19.9, released 24 April 2024
{: #1199}

Review the changes that are included in version 1.19.9 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.19.8

Current version
:   1.19.9

Updates in this version
:   This is the final version of `addon-istio` 1.19. `addon-istio` 1.19 is unsupported on 08 May 2024.
:   For more information, see the [Istio security bulletin 2024-002](https://istio.io/latest/news/security/istio-security-2024-002){: external}.
:   See the Istio release notes for [Istio 1.19.9](https://istio.io/latest/news/releases/1.19.x/announcing-1.19.9/){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-2398](https://nvd.nist.gov/vuln/detail/CVE-2024-2398){: external}
    - [CVE-2024-28085](https://nvd.nist.gov/vuln/detail/CVE-2024-28085){: external}
    - [CVE-2022-3715](https://nvd.nist.gov/vuln/detail/CVE-2022-3715){: external}


### Version 1.20.4, released 03 April 2024
{: #1204}

Review the changes that are included in version 1.20.4 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.20.3

Current version
:   1.20.4

Updates in this version
:   Uninstalling `Addon-Istio` no longer deletes the `istio-system` namespace. This cleanup became unnecessary over time.
:   See the Istio release notes for [Istio 1.20.4](https://istio.io/latest/news/releases/1.20.x/announcing-1.20.4/){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-0727](https://nvd.nist.gov/vuln/detail/CVE-2024-0727){: external}
    - [CVE-2023-6237](https://nvd.nist.gov/vuln/detail/CVE-2023-6237){: external}
    - [CVE-2023-5678](https://nvd.nist.gov/vuln/detail/CVE-2023-5678){: external}
    - [CVE-2023-6129](https://nvd.nist.gov/vuln/detail/CVE-2023-6129){: external}
    - [CVE-2023-4641](https://nvd.nist.gov/vuln/detail/CVE-2023-4641){: external}


### Version 1.19.8, released 03 April 2024
{: #1198}

Review the changes that are included in version 1.19.8 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.19.7

Current version
:   1.19.8

Updates in this version
:   This version is the final version of `Addon-Istio` 1.19. `Addon-Istio` 1.19 is unsupported on 8 May 2024.
:   Uninstalling `Addon-Istio` no longer deletes the `istio-system` namespace. This cleanup became unnecessary over time.
:   See the Istio release notes for [Istio 1.19.8](https://istio.io/latest/news/releases/1.19.x/announcing-1.19.8/){: external}.
:   Resolves the following CVEs:
    - [CVE-2024-0727](https://nvd.nist.gov/vuln/detail/CVE-2024-0727){: external}
    - [CVE-2023-6237](https://nvd.nist.gov/vuln/detail/CVE-2023-6237){: external}
    - [CVE-2023-5678](https://nvd.nist.gov/vuln/detail/CVE-2023-5678){: external}
    - [CVE-2023-6129](https://nvd.nist.gov/vuln/detail/CVE-2023-6129){: external}
    - [CVE-2023-4641](https://nvd.nist.gov/vuln/detail/CVE-2023-4641){: external}


### Version 1.20.3, released 06 March 2024
{: #1203}

Review the changes that are included in version 1.20.3 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.20.2

Current version
:   1.20.3

Updates in this version
:   See the Istio release notes for [Istio 1.20.3](https://istio.io/latest/news/releases/1.20.x/announcing-1.20.3/){: external}.
:   Resolves the following CVEs:
    - [CVE-2023-6779](https://nvd.nist.gov/vuln/detail/CVE-2023-6779){: external}
    - [CVE-2023-6246](https://nvd.nist.gov/vuln/detail/CVE-2023-6246){: external}
    - [CVE-2023-6004](https://nvd.nist.gov/vuln/detail/CVE-2023-6004){: external}
    - [CVE-2024-0553](https://nvd.nist.gov/vuln/detail/CVE-2024-0553){: external}
    - [CVE-2023-6918](https://nvd.nist.gov/vuln/detail/CVE-2023-6918){: external}
    - [CVE-2023-2953](https://nvd.nist.gov/vuln/detail/CVE-2023-2953){: external}
    - [CVE-2024-22365](https://nvd.nist.gov/vuln/detail/CVE-2024-22365){: external}
    - [CVE-2024-0567](https://nvd.nist.gov/vuln/detail/CVE-2024-0567){: external}
    - [CVE-2023-6780](https://nvd.nist.gov/vuln/detail/CVE-2023-6780){: external}


### Version 1.19.7, released 06 March 2024
{: #1197}

Review the changes that are included in version 1.19.7 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.19.6

Current version
:   1.19.7

Updates in this version
:   See the Istio release notes for [Istio 1.19.7](https://istio.io/latest/news/releases/1.19.x/announcing-1.19.7/){: external}.
:   Resolves the following CVEs:
    - [CVE-2023-6779](https://nvd.nist.gov/vuln/detail/CVE-2023-6779){: external}
    - [CVE-2023-6246](https://nvd.nist.gov/vuln/detail/CVE-2023-6246){: external}
    - [CVE-2023-6004](https://nvd.nist.gov/vuln/detail/CVE-2023-6004){: external}
    - [CVE-2024-0553](https://nvd.nist.gov/vuln/detail/CVE-2024-0553){: external}
    - [CVE-2023-6918](https://nvd.nist.gov/vuln/detail/CVE-2023-6918){: external}
    - [CVE-2023-2953](https://nvd.nist.gov/vuln/detail/CVE-2023-2953){: external}
    - [CVE-2024-22365](https://nvd.nist.gov/vuln/detail/CVE-2024-22365){: external}
    - [CVE-2024-0567](https://nvd.nist.gov/vuln/detail/CVE-2024-0567){: external}
    - [CVE-2023-6780](https://nvd.nist.gov/vuln/detail/CVE-2023-6780){: external}


### Version 1.20.2, released 07 February 2024
{: #1202}

Review the changes that are included in version 1.20.2 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.20.1

Current version
:   1.20.2

Updates in this version
:   For more information, see the [Istio 1.20.2 release notes](https://istio.io/latest/news/releases/1.20.x/announcing-1.20.2/.){: external}.
:   Resolves the following CVEs:
    - [CVE-2023-39804](https://nvd.nist.gov/vuln/detail/CVE-2023-39804){: external}
    - [CVE-2023-48795](https://nvd.nist.gov/vuln/detail/CVE-2023-48795){: external}


### Version 1.19.6, released 07 February 2024
{: #1196}

Review the changes that are included in version 1.19.6 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.19.5

Current version
:   1.19.6

Updates in this version
:   See the [Istio 1.19.6 release notes](https://istio.io/latest/news/releases/1.19.x/announcing-1.19.6){: external}.
:   Resolves the following CVEs:
    - [CVE-2023-39804](https://nvd.nist.gov/vuln/detail/CVE-2023-39804){: external}
    - [CVE-2023-48795](https://nvd.nist.gov/vuln/detail/CVE-2023-48795){: external}


### Version 1.18.7, released 07 February 2024
{: #1187}

Review the changes that are included in version 1.18.7 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.18.6

Current version
:   1.18.7

Updates in this version
:   This version is the EOL version for 1.18. Support for Istio 1.18 ends on 21 February 2024.
:   See the Istio release notes for [Istio 1.18.7](https://istio.io/latest/news/releases/1.18.x/announcing-1.18.7){: external}.
:   Resolves the following CVEs:
    - [CVE-2023-39804](https://nvd.nist.gov/vuln/detail/CVE-2023-39804){: external}
    - [CVE-2023-48795](https://nvd.nist.gov/vuln/detail/CVE-2023-48795){: external}


### Version 1.20.1, released 10 January 2024
{: #1201}

Review the changes that are included in version 1.20.1 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.20.0

Current version
:   1.20.1

Updates in this version
:   For more information, see the [Istio security bulletin 2023-005](https://istio.io/latest/news/security/istio-security-2023-005/){: external}.
:   See the Istio release notes for [Istio 1.20.1](https://istio.io/latest/news/releases/1.20.x/announcing-1.20.1/.){: external}.
:   Resolves the following CVEs:
    - [USN-6517-1](https://ubuntu.com/security/notices/USN-6517-1){: external}
    - [CVE-2022-48522](https://nvd.nist.gov/vuln/detail/CVE-2022-48522){: external}
    - [CVE-2023-47038](https://nvd.nist.gov/vuln/detail/CVE-2023-47038){: external}
    - USN-6477-1
    - [CVE-2023-4016](https://nvd.nist.gov/vuln/detail/CVE-2023-4016){: external}
    - USN-6427-1
    - [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487){: external}
    - [USN-6535-1](https://ubuntu.com/security/notices/USN-6535-1){: external}
    - [CVE-2023-46218](https://nvd.nist.gov/vuln/detail/CVE-2023-46218){: external}
    - [CVE-2023-46219](https://nvd.nist.gov/vuln/detail/CVE-2023-46219){: external}
    - [USN-6541-1](https://ubuntu.com/security/notices/USN-6541-1){: external}
    - [CVE-2023-4806](https://nvd.nist.gov/vuln/detail/CVE-2023-4806){: external}
    - [CVE-2023-4813](https://nvd.nist.gov/vuln/detail/CVE-2023-4813){: external}
    - [CVE-2023-5156](https://nvd.nist.gov/vuln/detail/CVE-2023-5156){: external}
    - USN-6499-1
    - [CVE-2023-5981](https://nvd.nist.gov/vuln/detail/CVE-2023-5981){: external}


### Version 1.19.5, released 10 January 2024
{: #1195}

Review the changes that are included in version 1.19.5 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.19.4

Current version
:   1.19.5

Updates in this version
:   For more information, see the [Istio security bulletin 2023-005](https://istio.io/latest/news/security/istio-security-2023-005/){: external}.
:   See the Istio release notes for [Istio 1.19.5](https://istio.io/latest/news/releases/1.19.x/announcing-1.19.5/.){: external}.
:   Resolves the following CVEs:
    - [USN-6517-1](https://ubuntu.com/security/notices/USN-6517-1){: external}
    - [CVE-2022-48522](https://nvd.nist.gov/vuln/detail/CVE-2022-48522){: external}
    - [CVE-2023-47038](https://nvd.nist.gov/vuln/detail/CVE-2023-47038){: external}
    - USN-6477-1
    - [CVE-2023-4016](https://nvd.nist.gov/vuln/detail/CVE-2023-4016){: external}
    - USN-6427-1
    - [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487){: external}
    - [USN-6535-1](https://ubuntu.com/security/notices/USN-6535-1){: external}
    - [CVE-2023-46218](https://nvd.nist.gov/vuln/detail/CVE-2023-46218){: external}
    - [CVE-2023-46219](https://nvd.nist.gov/vuln/detail/CVE-2023-46219){: external}
    - [USN-6541-1](https://ubuntu.com/security/notices/USN-6541-1){: external}
    - [CVE-2023-4806](https://nvd.nist.gov/vuln/detail/CVE-2023-4806){: external}
    - [CVE-2023-4813](https://nvd.nist.gov/vuln/detail/CVE-2023-4813){: external}
    - [CVE-2023-5156](https://nvd.nist.gov/vuln/detail/CVE-2023-5156){: external}
    - USN-6499-1
    - [CVE-2023-5981](https://nvd.nist.gov/vuln/detail/CVE-2023-5981){: external}


### Version 1.18.6, released 10 January 2024
{: #1186}

Review the changes that are included in version 1.18.6 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.18.5

Current version
:   1.18.6

Updates in this version
:   See the Istio release notes for [Istio 1.18.6](https://istio.io/latest/news/releases/1.18.x/announcing-1.18.6/.){: external}.
:   For more information, see the [Istio security bulletin 2023-005](https://istio.io/latest/news/security/istio-security-2023-005/){: external}.
:   Resolves the following CVEs:
    - [USN-6517-1](https://ubuntu.com/security/notices/USN-6517-1){: external}
    - [CVE-2022-48522](https://nvd.nist.gov/vuln/detail/CVE-2022-48522){: external}
    - [CVE-2023-47038](https://nvd.nist.gov/vuln/detail/CVE-2023-47038){: external}
    - [USN-6450-1](https://ubuntu.com/security/notices/USN-6450-1){: external}
    - [CVE-2023-2975](https://nvd.nist.gov/vuln/detail/CVE-2023-2975){: external}
    - [CVE-2023-5363](https://nvd.nist.gov/vuln/detail/CVE-2023-5363){: external}
    - [USN-6435-1](https://ubuntu.com/security/notices/USN-6435-1){: external}
    - [CVE-2023-3446](https://nvd.nist.gov/vuln/detail/CVE-2023-3446){: external}
    - [CVE-2023-3817](https://nvd.nist.gov/vuln/detail/CVE-2023-3817){: external}
    - USN-6467-1
    - [CVE-2023-36054](https://nvd.nist.gov/vuln/detail/CVE-2023-36054){: external}
    - [USN-6429-1](https://ubuntu.com/security/notices/USN-6429-1){: external}
    - [CVE-2023-38545](https://nvd.nist.gov/vuln/detail/CVE-2023-38545){: external}
    - [CVE-2023-38546](https://nvd.nist.gov/vuln/detail/CVE-2023-38546){: external}
    - [USN-6543-1](https://ubuntu.com/security/notices/USN-6543-1){: external}
    - [CVE-2023-39804](https://nvd.nist.gov/vuln/detail/CVE-2023-39804){: external}
    - USN-6477-1
    - [CVE-2023-4016](https://nvd.nist.gov/vuln/detail/CVE-2023-4016){: external}
    - USN-6427-1
    - [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487){: external}
    - [USN-6535-1](https://ubuntu.com/security/notices/USN-6535-1){: external}
    - [CVE-2023-46218](https://nvd.nist.gov/vuln/detail/CVE-2023-46218){: external}
    - [CVE-2023-46219](https://nvd.nist.gov/vuln/detail/CVE-2023-46219){: external}
    - [USN-6541-1](https://ubuntu.com/security/notices/USN-6541-1){: external}
    - [CVE-2023-4806](https://nvd.nist.gov/vuln/detail/CVE-2023-4806){: external}
    - [CVE-2023-4813](https://nvd.nist.gov/vuln/detail/CVE-2023-4813){: external}
    - [CVE-2023-5156](https://nvd.nist.gov/vuln/detail/CVE-2023-5156){: external}
    - USN-6499-1
    - [CVE-2023-5981](https://nvd.nist.gov/vuln/detail/CVE-2023-5981){: external}


### Version 1.20.0, released 7 December 2023
{: #1200}

Review the changes that are included in version 1.20.0 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.19.4

Current version
:   1.20.0

Updates in this version
:   See the Istio release notes for [Istio 1.20.0](https://istio.io/latest/news/releases/1.20.x/announcing-1.20/){: external}.

## Unsupported: Version 1.19
{: #v119}

Version 1.19 of the managed Istio add-on is unsupported. 
{: important}


### Version 1.19.4, released 5 December 2023
{: #1194}

Review the changes that are included in version 1.19.4 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.19.3

Current version
:   1.19.4

Updates in this version
:   See the Istio release notes for [Istio 1.19.64](https://istio.io/latest/news/releases/1.19.x/announcing-1.19.4/){: external}.
:   Resolves the following CVEs:
    - [CVE-2023-2975](https://www.cve.org/CVERecord?id=CVE-2023-2975){: external}
    - [CVE-2023-3446](https://www.cve.org/CVERecord?id=CVE-2023-3446){: external}
    - [CVE-2023-38545](https://www.cve.org/CVERecord?id=CVE-2023-38545){: external}
    - [CVE-2023-38546](https://www.cve.org/CVERecord?id=CVE-2023-38546){: external}
    - [CVE-2023-3817](https://www.cve.org/CVERecord?id=CVE-2023-3817){: external}
    - [CVE-2023-4911](https://www.cve.org/CVERecord?id=CVE-2023-4911){: external}
    - [CVE-2023-5363](https://www.cve.org/CVERecord?id=CVE-2023-5363){: external}
    - [CVE-2023-36054](https://www.cve.org/CVERecord?id=CVE-2023-36054){: external}
    - [usn-6429-1](https://ubuntu.com/security/notices/USN-6429-1){: external}  
    - [usn-6450-1](https://ubuntu.com/security/notices/USN-6450-1){: external}


### Version 1.18.5, released 18 October 2023
{: #1185}

Previous version
:   1.18.3

Current version
:   1.18.5

Updates in this version
:   See the Istio release notes for [Istio 1.18.5](https://istio.io/latest/news/releases/1.18.x/announcing-1.18.5/.){: external}.
:   Resolves [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487){: external} and [CVE-2023-39325](https://nvd.nist.gov/vuln/detail/CVE-2023-39325){: external}.
:   For more information, see the [Istio security bulletin 2023-004](https://istio.io/latest/news/security/istio-security-2023-004/){: external}.  


### Version 1.17.8, released 18 October 2023
{: #1178}

Previous version
:   1.17.6

Current version
:   1.17.8

Updates in this version
:   See the Istio release notes for [Istio 1.17.8](https://istio.io/latest/news/releases/1.17.x/announcing-1.17.8/.){: external}.
:   Resolves [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487) and [CVE-2023-39325](https://nvd.nist.gov/vuln/detail/CVE-2023-39325).
:   For more information, see the [Istio security bulletin 2023-004](https://istio.io/latest/news/security/istio-security-2023-004/){: external}   


### Version 1.19.3, released 10 October 2023
{: #1193}

Review the changes that are included in version 1.19.3 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.18.3

Current version
:   1.19.3

Updates in this version
:   For more information, see the [Istio security bulletin 2023-004](https://istio.io/latest/news/security/istio-security-2023-004/){: external}
:   See the Istio release notes for [Istio 1.19.3](https://istio.io/latest/news/releases/1.19.x/announcing-1.19.3/.){: external}.
:   Upstream announcement for [Istio 1.19.0](https://istio.io/latest/news/releases/1.19.x/announcing-1.19/.){: external}.   
:   `Addon-Istio` does not support ambient mesh at this time


## Unsupported: Version 1.18
{: #v118}

Version 1.18 of the managed Istio add-on is unsupported. 
{: important}


### Version 1.18.3, released 3 October 2023
{: #1183}

Review the changes that are included in version 1.18.3 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.18.2

Current version
:   1.18.3

Updates in this version
:   See the Istio release notes for [Istio 1.18.3](https://istio.io/latest/news/releases/1.18.x/announcing-1.18.3/){: external}.
:   Resolves the following CVEs:
    - [CVE-2023-28321](https://www.cve.org/CVERecord?id=CVE-2023-28321){: external}
    - [CVE-2023-28322](https://www.cve.org/CVERecord?id=CVE-2023-28322){: external}
    - [CVE-2023-32001](https://www.cve.org/CVERecord?id=CVE-2023-32001){: external}
    - usn-6237-2


### Version 1.17.6, released 3 October 2023
{: #1176}

Review the changes that are included in version 1.17.6 of the managed Istio add-on.
{: shortdesc}

Previous version
:   1.17.6

Current version
:   1.17.5

Updates in this version
:   See the Istio release notes for [Istio 1.17.6](https://istio.io/latest/news/releases/1.17.x/announcing-1.17.6/){: external}.
:   Resolves the following CVEs:
    - [CVE-2023-28321](https://www.cve.org/CVERecord?id=CVE-2023-28321){: external}
    - [CVE-2023-28322](https://www.cve.org/CVERecord?id=CVE-2023-28322){: external}
    - [CVE-2023-32001](https://www.cve.org/CVERecord?id=CVE-2023-32001){: external}
    - usn-6237-2