12 October 2026, Version 1.31 - 1.31.1

Default version

• Resolves the following CVEs: CVE-2025-15649, CVE-2025-45582, CVE-2025-69720, CVE-2026-2219, CVE-2026-3832, CVE-2026-3833, CVE-2026-4046, CVE-2026-4437, CVE-2026-4438, CVE-2026-4873, CVE-2026-4878, CVE-2026-5260, CVE-2026-5419, CVE-2026-5435, CVE-2026-5450, CVE-2026-54874, CVE-2026-5545, CVE-2026-5704, CVE-2026-57432, CVE-2026-57433, CVE-2026-5773, CVE-2026-58055, CVE-2026-5928, CVE-2026-5958, CVE-2026-6238, CVE-2026-6253, CVE-2026-6276, CVE-2026-63072, CVE-2026-63074, CVE-2026-63076, CVE-2026-6429, CVE-2026-7017, CVE-2026-7168, CVE-2026-7383, CVE-2026-75803, CVE-2026-8286, CVE-2026-8376, CVE-2026-8458, CVE-2026-8924, CVE-2026-8925, CVE-2026-8927, CVE-2026-8932, CVE-2026-9076, CVE-2026-9538, CVE-2026-9547, CVE-2026-10536, CVE-2026-11850, CVE-2026-11856, CVE-2026-12087, CVE-2026-13221, CVE-2026-13757, CVE-2026-15059, CVE-2026-16742, CVE-2026-18938, CVE-2026-27135, CVE-2026-33845, CVE-2026-33846, CVE-2026-34180, CVE-2026-34182, CVE-2026-34743, CVE-2026-40226, CVE-2026-40355, CVE-2026-40356, CVE-2026-41989, CVE-2026-41991, CVE-2026-41992, CVE-2026-42009, CVE-2026-42010, CVE-2026-42011, CVE-2026-42012, CVE-2026-42013, CVE-2026-42014, CVE-2026-42015, CVE-2026-42496, CVE-2026-42497, CVE-2026-42766, CVE-2026-42767, CVE-2026-42770, CVE-2026-45445, CVE-2026-45446, CVE-2026-45447, CVE-2026-48959, CVE-2026-48962, and CVE-2026-54411.
• Updates in this version: See the Istio release notes for Istio 1.31.1.

28 September 2026, Version 1.31 - 1.31.0

Default version

• Updates in this version: See the Istio release notes for Istio 1.31.0.

23 September 2026, Version 1.31 - 1.31.0

• Updates in this version: See the Istio release notes for Istio 1.31.0.

12 October 2026, Version 1.30 - 1.30.5

Default version

• Resolves the following CVEs: CVE-2024-2236, CVE-2025-5278, CVE-2025-6141, CVE-2025-15649, CVE-2026-42250, CVE-2026-48959, CVE-2026-48962, CVE-2026-53612, CVE-2026-53613, CVE-2026-53614, CVE-2026-53615, CVE-2026-53910, CVE-2026-54371, CVE-2026-54874, CVE-2026-57062, CVE-2026-57432, CVE-2026-57433, CVE-2026-59843, CVE-2026-59845, CVE-2026-59846, CVE-2026-59847, CVE-2026-59848, CVE-2026-59850, CVE-2026-63072, CVE-2026-63074, CVE-2026-63076, CVE-2026-6368, CVE-2026-6791, CVE-2026-7017, CVE-2026-75803, CVE-2026-77117, CVE-2026-80489, CVE-2026-8932, CVE-2026-9538, CVE-2026-12087, CVE-2026-13221, CVE-2026-13595, CVE-2026-13757, CVE-2026-15534, CVE-2026-18938, CVE-2026-19487, CVE-2026-19499, CVE-2026-19542, CVE-2026-27171, and CVE-2026-27456.
• Updates in this version: See the Istio release notes for Istio 1.30.5

10 September 2026, Version 1.30 - 1.30.4

• Resolves the following CVEs: CVE-2025-45582, CVE-2025-69720, CVE-2026-2219, CVE-2026-3832, CVE-2026-3833, CVE-2026-4046, CVE-2026-4437, CVE-2026-4438, CVE-2026-4873, CVE-2026-4878, CVE-2026-5260, CVE-2026-5419, CVE-2026-5435, CVE-2026-5450, CVE-2026-5545, CVE-2026-5704, CVE-2026-5773, CVE-2026-5928, CVE-2026-5958, CVE-2026-6238, CVE-2026-6253, CVE-2026-6276, CVE-2026-6429, CVE-2026-7168, CVE-2026-7383, CVE-2026-8286, CVE-2026-8376, CVE-2026-8458, CVE-2026-8924, CVE-2026-8925, CVE-2026-8927, CVE-2026-9076, CVE-2026-9547, CVE-2026-10536, CVE-2026-11850, CVE-2026-11856, CVE-2026-15059, CVE-2026-16742, CVE-2026-27135, CVE-2026-33845, CVE-2026-33846, CVE-2026-34180, CVE-2026-34182, CVE-2026-34743, CVE-2026-40226, CVE-2026-40355, CVE-2026-40356, CVE-2026-41989, CVE-2026-41991, CVE-2026-41992, CVE-2026-42009, CVE-2026-42010, CVE-2026-42011, CVE-2026-42012, CVE-2026-42013, CVE-2026-42014, CVE-2026-42015, CVE-2026-42496, CVE-2026-42497, CVE-2026-42766, CVE-2026-42767, CVE-2026-42770, CVE-2026-45445, CVE-2026-45446, CVE-2026-45447, CVE-2026-54411, and CVE-2026-58055.
• Updates in this version: See the Istio release notes for Istio 1.30.4

18 August 2026, Version 1.30 - 1.30.3

• Updates in this version: See the Istio release notes for Istio 1.30.3

21 July 2026, Version 1.30 - 1.30.2

• Updates in this version: See the Istio release notes for Istio 1.29.6, Istio 1.30.1 and Istio 1.30.2

12 October 2026, Version 1.29 - 1.29.8

Default version

• Resolves the following CVEs: CVE-2024-2236, CVE-2025-5278, CVE-2025-6141, CVE-2025-15649, CVE-2026-6368, CVE-2026-6791, CVE-2026-7017, CVE-2026-9538, CVE-2026-12087, CVE-2026-13221, CVE-2026-13595, CVE-2026-13757, CVE-2026-15534, CVE-2026-18938, CVE-2026-19487, CVE-2026-19499, CVE-2026-19542, CVE-2026-27171, CVE-2026-27456, CVE-2026-42250, CVE-2026-48959, CVE-2026-48962, CVE-2026-53612, CVE-2026-53613, CVE-2026-53614, CVE-2026-53615, CVE-2026-53910, CVE-2026-54371, CVE-2026-57062, CVE-2026-57432, CVE-2026-57433, CVE-2026-59843, CVE-2026-59845, CVE-2026-59846, CVE-2026-59847, CVE-2026-59848, CVE-2026-59850, CVE-2026-77117, and CVE-2026-80489.
• Updates in this version: See the Istio release notes for Istio 1.29.8.

10 September 2026, Version 1.29 - 1.29.7

• Resolves the following CVEs: CVE-2025-45582, CVE-2025-69720, CVE-2026-2219, CVE-2026-3832, CVE-2026-3833, CVE-2026-4046, CVE-2026-4437, CVE-2026-4438, CVE-2026-4873, CVE-2026-4878, CVE-2026-5260, CVE-2026-5419, CVE-2026-5435, CVE-2026-5450, CVE-2026-5545, CVE-2026-5704, CVE-2026-5773, CVE-2026-5928, CVE-2026-5958, CVE-2026-6238, CVE-2026-6253, CVE-2026-6276, CVE-2026-6429, CVE-2026-7168, CVE-2026-7383, CVE-2026-8286, CVE-2026-8376, CVE-2026-8458, CVE-2026-8924, CVE-2026-8925, CVE-2026-8927, CVE-2026-8932, CVE-2026-9076, CVE-2026-9547, CVE-2026-10536, CVE-2026-11850, CVE-2026-11856, CVE-2026-15059, CVE-2026-16742, CVE-2026-27135, CVE-2026-33845, CVE-2026-33846, CVE-2026-34180, CVE-2026-34182, CVE-2026-34743, CVE-2026-40226, CVE-2026-40355, CVE-2026-40356, CVE-2026-41989, CVE-2026-41991, CVE-2026-41992, CVE-2026-42009, CVE-2026-42010, CVE-2026-42011, CVE-2026-42012, CVE-2026-42013, CVE-2026-42014, CVE-2026-42015, CVE-2026-42496, CVE-2026-42497, CVE-2026-42766, CVE-2026-42767, CVE-2026-42770, CVE-2026-45445, CVE-2026-45446, CVE-2026-45447, CVE-2026-54411, CVE-2026-54874, CVE-2026-58055, CVE-2026-63072, CVE-2026-63074, CVE-2026-63076, and CVE-2026-75803.
• Updates in this version: See the Istio release notes for Istio 1.29.7.

18 August 2026, Version 1.29 - 1.29.6

• Updates in this version: See the Istio release notes for Istio 1.29.6.

15 July 2026, Version 1.29 - 1.29.5

• Updates in this version: See the Istio release notes for Istio 1.29.5.

17 June 2026, Version 1.29 - 1.29.4

• Updates in this version: See the Istio release notes for Istio 1.29.3 and Istio 1.29.4.

12 May 2026, Version 1.29 - 1.29.2

• Updates in this version: See the Istio release notes for Istio 1.29.0, Istio 1.29.1 and Istio 1.29.2.

15 July 2026, Version 1.28 - 1.28.10

Default version

• Updates in this version: See the Istio release notes for Istio 1.28.9 and Istio 1.28.10.

17 June 2026, Version 1.28 - 1.28.8

• Updates in this version: See the Istio release notes for Istio 1.28.7 and Istio 1.28.8.

30 April 2026, Version 1.28 - 1.28.6

• Resolves the following CVEs: CVE-2026-28387, CVE-2026-28388, CVE-2026-31789, CVE-2026-28389, CVE-2026-28390, and CVE-2026-31790.
• Updates in this version: See the Istio release notes for Istio 1.28.0, Istio 1.28.1, Istio 1.28.2, Istio 1.28.3, Istio 1.28.4, Istio 1.28.5 and Istio 1.28.6.

28 April 2026, Version 1.27 - 1.27.9

• Resolves the following CVEs: CVE-2026-35535, CVE-2026-1965, CVE-2026-3731, CVE-2026-3783, CVE-2026-29111, CVE-2025-0167, and CVE-2026-3784.
• Updates in this version: See the Istio release notes for Istio 1.27.9.

27 March 2026, Version 1.27 - 1.27.8

• Resolves the following CVEs: CVE-2026-22796, CVE-2026-0965, CVE-2025-68973, CVE-2025-15281, CVE-2026-0968, CVE-2026-0964, CVE-2025-15224, CVE-2025-8277, CVE-2026-22795, CVE-2025-9820, CVE-2025-14524, CVE-2025-69421, CVE-2025-15079, CVE-2026-0915, CVE-2025-13151, CVE-2025-14819, CVE-2026-0861, CVE-2025-14831, CVE-2025-69419, CVE-2026-0966, CVE-2025-15467, CVE-2026-0967, CVE-2025-69420, CVE-2025-68160, CVE-2025-10148, CVE-2025-69418, and CVE-2025-14017.
• Updates in this version: See the Istio release notes for Istio 1.27.0, Istio 1.27.1, Istio 1.27.2, Istio 1.27.3, Istio 1.27.4, Istio 1.27.5, Istio 1.27.6, Istio 1.27.7 and Istio 1.27.8.

15 December 2025, Version 1.26 - 1.26.6

• Resolves the following CVEs: CVE-2025-32463, CVE-2025-32988, CVE-2025-47268, CVE-2025-5372, CVE-2025-6297, CVE-2025-32989, CVE-2025-4878, CVE-2025-5351, CVE-2025-5987, CVE-2025-4877, CVE-2025-48964, CVE-2025-32990, CVE-2025-9230, CVE-2025-32462, CVE-2025-5318, CVE-2025-40909, CVE-2025-5702, CVE-2024-10963, CVE-2024-8058, and CVE-2024-6395.
• Updates in this version: See the Istio release notes for Istio 1.26.0, Istio 1.26.1, Istio 1.26.2, Istio 1.26.3, Istio 1.26.4, Istio 1.26.5 and Istio 1.26.6.

05 November 2025, Version 1.25.5

• 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 {{site.data.keyword.containerlong_notm}} before that date.
• addon-istio 1.27 is available and supported on {{site.data.keyword.containerlong_notm}} 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. 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, Istio 1.25.1, Istio 1.25.2, Istio 1.25.3, Istio 1.25.4, and Istio 1.25.5.
• Resolves the following CVEs: CVE-2025-3576, CVE-2025-4598, CVE-2025-46836, and CVE-2025-6020.

21 January 2025, Version 1.26 - 1.26.8

• Resolves the following CVEs: CVE-2025-8114.
• Updates in this version: See the Istio release notes for Istio 1.26.7 and Istio 1.26.8.

20 September 2024, Version 1.23.1

• See the Istio release notes for Istio 1.23.0 and Istio 1.23.1.
• Resolves the following CVEs: CVE-2024-6119 and usn-6986-1.

20 August 2024, Version 1.22.3

• See the Istio release notes for Istio 1.22.2 and Istio 1.22.3.
• Resolves the following CVEs: CVE-2024-33599, CVE-2024-33600, CVE-2024-33601, CVE-2024-33602, CVE-2022-40735, CVE-2024-28182, usn-6804-1, usn-6854-1, and usn-6754-1.
• For more information, see the Istio security bulletin 2024-005.

20 August 2024, Version 1.21.5

• See the Istio release notes for Istio 1.21.4 and Istio 1.21.5.
• Resolves the following CVEs: CVE-2024-33599, CVE-2024-33600, CVE-2024-33601, CVE-2024-33602, CVE-2022-40735, usn-6804-1, and usn-6854-1.
• For more information, see the Istio security bulletin 2024-005.

20 August 2024, Version 1.20.8

• 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.
• Resolves the following CVEs: CVE-2024-33599, CVE-2024-33600, CVE-2024-33601, CVE-2024-33602, and usn-6804-1.

18 August 2024, Version 1.22.4

• See the Istio release notes for Istio 1.22.4.
• Resolves the following CVEs: CVE-2024-4603, CVE-2024-37371, CVE-2024-2511, CVE-2024-4741, CVE-2022-37370, CVE-2024-5535, CVE-2024-7264, usn-6937-1, usn-6947-1, and usn-6944-1.

21 June 2024, Version 1.22.1

• See the Istio release notes for Istio 1.22.0 and Istio 1.22.1.

26 September 2025, Version 1.24.6

• 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 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, Istio 1.24.1, Istio 1.24.2, Istio 1.24.3, Istio 1.24.4, Istio 1.24.5, and Istio 1.24.6.
• Resolves the following CVEs: CVE-2024-56406, CVE-2025-30258, and CVE-2025-31115.

29 April 2025, Version 1.23.6

• See the Istio release notes for Istio 1.23.6.
• Resolves the following CVEs: CVE-2024-25260, CVE-2025-1365, CVE-2025-1371, CVE-2025-1372, CVE-2025-1377, CVE-2024-12243, CVE-2024-26458, CVE-2024-26461, CVE-2024-26462, CVE-2025-24528, CVE-2024-12133, CVE-2025-0395, CVE-2024-13176, CVE-2024-9143, CVE-2024-3596, CVE-2025-1390, usn-7369-1, usn-7281-1, usn-7314-1, usn-7275-1, usn-7259-1, usn-7264-1, usn-7055-1, and usn-7287-1.

4 March 2025, Version 1.23.5

• See the Istio release notes for Istio 1.23.5.
• Expanded testing and support to IKS 1.31.
• Resolves the following CVEs: CVE-2025-0665 and CVE-2024-11053.

19 June 2024, Version 1.21.3

• See the Istio release notes for Istio 1.21.3.
• Resolves the following CVEs: CVE-2024-2961, CVE-2024-28182, usn- 6737-1, and usn-6754-1.
• For more information, see the Istio security bulletin 2024-004

19 June 2024, Version 1.20.7

• See the Istio release notes for Istio 1.20.7.
• Resolves the following CVEs: CVE-2024-2961, CVE-2024-28182, usn- 6737-1, and usn-6754-1.
• For more information, see the Istio security bulletin 2024-004

8 May 2024, Version 1.21.2

• For more information, see the Istio security bulletin 2024-003.
• See the Istio release notes for Istio 1.21.2.
• Resolves the following CVEs: USN-6733-1, CVE-2024-28835, and CVE-2024-28834.

8 May 2024, Version 1.20.6

• For more information, see the Istio security bulletin 2024-003.
• See the Istio release notes for Istio 1.20.6.
• Resolves the following CVEs: USN-6733-1, CVE-2024-28835, and CVE-2024-28834.

26 April 2024, Version 1.21.1

• See the Istio release notes for Istio 1.21.0 and Istio 1.21.1.
• 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 documentation for more information.

24 April 2024, Version 1.20.5

• For more information, see the Istio security bulletin 2024-002.
• See the Istio release notes for Istio 1.20.5.
• Resolves the following CVEs: CVE-2024-2398, CVE-2024-28085, and CVE-2022-3715.

24 April 2024, Version 1.19.9

• 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.
• See the Istio release notes for Istio 1.19.9.
• Resolves the following CVEs: CVE-2024-2398, CVE-2024-28085, and CVE-2022-3715.

03 April 2024, Version 1.20.4

• 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.
• Resolves the following CVEs: CVE-2024-0727, CVE-2023-6237, CVE-2023-5678, CVE-2023-6129, and CVE-2023-4641.

03 April 2024, Version 1.19.8

• 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.
• Resolves the following CVEs: CVE-2024-0727, CVE-2023-6237, CVE-2023-5678, CVE-2023-6129, and CVE-2023-4641.

06 March 2024, Version 1.20.3

• See the Istio release notes for Istio 1.20.3.
• Resolves the following CVEs: CVE-2023-6779, CVE-2023-6246, CVE-2023-6004, CVE-2024-0553, CVE-2023-6918, CVE-2023-2953, CVE-2024-22365, CVE-2024-0567, and CVE-2023-6780.

06 March 2024, Version 1.19.7

• See the Istio release notes for Istio 1.19.7.
• Resolves the following CVEs: CVE-2023-6779, CVE-2023-6246, CVE-2023-6004, CVE-2024-0553, CVE-2023-6918, CVE-2023-2953, CVE-2024-22365, CVE-2024-0567, and CVE-2023-6780.

07 February 2024, Version 1.20.2

• For more information, see the Istio 1.20.2 release notes.
• Resolves the following CVEs: CVE-2023-39804 and CVE-2023-48795.

07 February 2024, Version 1.19.6

• See the Istio 1.19.6 release notes.
• Resolves the following CVEs: CVE-2023-39804 and CVE-2023-48795.

07 February 2024, Version 1.18.7

• 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.
• Resolves the following CVEs: CVE-2023-39804 and CVE-2023-48795.

10 January 2024, Version 1.20.1

• For more information, see the Istio security bulletin 2023-005.
• See the Istio release notes for Istio 1.20.1.
• Resolves the following CVEs: USN-6517-1, CVE-2022-48522, CVE-2023-47038, USN-6477-1, CVE-2023-4016, USN-6427-1, CVE-2023-44487, USN-6535-1, CVE-2023-46218, CVE-2023-46219, USN-6541-1, CVE-2023-4806, CVE-2023-4813, CVE-2023-5156, USN-6499-1, and CVE-2023-5981.

10 January 2024, Version 1.19.5

• For more information, see the Istio security bulletin 2023-005.
• See the Istio release notes for Istio 1.19.5.
• Resolves the following CVEs: USN-6517-1, CVE-2022-48522, CVE-2023-47038, USN-6477-1, CVE-2023-4016, USN-6427-1, CVE-2023-44487, USN-6535-1, CVE-2023-46218, CVE-2023-46219, USN-6541-1, CVE-2023-4806, CVE-2023-4813, CVE-2023-5156, USN-6499-1, and CVE-2023-5981.

10 January 2024, Version 1.18.6

• See the Istio release notes for Istio 1.18.6.
• For more information, see the Istio security bulletin 2023-005.
• Resolves the following CVEs: USN-6517-1, CVE-2022-48522, CVE-2023-47038, USN-6450-1, CVE-2023-2975, CVE-2023-5363, USN-6435-1, CVE-2023-3446, CVE-2023-3817, USN-6467-1, CVE-2023-36054, USN-6429-1, CVE-2023-38545, CVE-2023-38546, USN-6543-1, CVE-2023-39804, USN-6477-1, CVE-2023-4016, USN-6427-1, CVE-2023-44487, USN-6535-1, CVE-2023-46218, CVE-2023-46219, USN-6541-1, CVE-2023-4806, CVE-2023-4813, CVE-2023-5156, USN-6499-1, and CVE-2023-5981.

7 December 2023, Version 1.20.0

• See the Istio release notes for Istio 1.20.0.

5 December 2023, Version 1.19.4

• See the Istio release notes for Istio 1.19.64.
• Resolves the following CVEs: CVE-2023-2975, CVE-2023-3446, CVE-2023-38545, CVE-2023-38546, CVE-2023-3817, CVE-2023-4911, CVE-2023-5363, CVE-2023-36054, usn-6429-1, and usn-6450-1.

18 October 2023, Version 1.18.5

• See the Istio release notes for Istio 1.18.5.
• Resolves CVE-2023-44487 and CVE-2023-39325.
• For more information, see the Istio security bulletin 2023-004.

18 October 2023, Version 1.17.8

• See the Istio release notes for Istio 1.17.8.
• Resolves CVE-2023-44487 and CVE-2023-39325.
• For more information, see the Istio security bulletin 2023-004