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Alibaba Cloud Service Mesh:Version support policy

Last Updated:Jun 24, 2026

Alibaba Cloud Service Mesh (ASM) is based on open-source Istio and provides multi-language traffic management. As Istio evolves, ASM periodically releases supported versions. This topic describes the Istio version support policy for Service Mesh (ASM) and the compatibility between ASM and ACK versions.

Release and expiration dates

Version

Status

Release date

Expiration date

1.29

Released

June 2026

April 2027

1.28

Released

March 2026

January 2027

1.27

Released

January 2026

November 2026

1.26

Released

November 2025

September 2026

1.25

Expired

July 2025

May 2026

1.24

Expired

January 2025

November 2025

1.23

Expired

December 2024

September 2025

1.22

Expired

August 2024

June 2025

1.21

Expired

May 2024

March 2025

1.20

Expired

February 2024

November 2024

1.19

Expired

December 2023

September 2024

1.18

Expired

September 2023

June 2024

1.17

Expired

June 2023

March 2024

1.16

Expired

April 2023

January 2024

1.15

Expired

December 2022

September 2023

1.14

Expired

September 2022

June 2023

1.13

Expired

June 2022

March 2023

1.12

Expired

March 2022

December 2022

1.11

Expired

December 2021

September 2022

1.10

Expired

September 2021

June 2022

Release cycle

  • ASM releases a new major Istio version approximately every three months.

  • After a major version is released, ASM periodically provides patch releases, such as v1.18.x.y, for feature updates and vulnerability fixes.

  • For patch release upgrades, such as from v1.18.0.123 to v1.18.0.146, the system automatically applies hot updates without prior notice. During these updates, the data plane gateway and sidecar proxy versions remain unchanged.

Risks of expired versions

Running an expired ASM instance exposes your system to security and stability risks. We recommend that you upgrade your instance to a supported version promptly. ASM provides no security patches, bug fixes, or technical support for expired versions. To upgrade an instance, see Upgrade an ASM instance.

ASM and ACK version compatibility

ASM version

Supported ACK versions

1.29

1.30 - latest

1.28

1.28 - latest

1.27

1.28 - latest

1.26

1.28 - latest

1.25

1.28 - 1.35

1.24

1.26 - 1.34

1.23

1.26 - 1.33

1.22

1.24 - 1.32

1.21

1.24 - 1.32

1.20

1.24 - 1.31

1.19

1.24 - 1.30

1.18

1.22 - 1.28

1.17

1.22 - 1.28

1.16

1.22 - 1.28

1.15

1.20 - 1.26

1.14

1.20 - 1.24

1.13

1.18 - 1.24

1.12

1.16 - 1.24

1.11

1.16 - 1.21

1.10

1.16 - 1.21

Note

For the latest compatibility information, see the ASM console.

References