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 |
For the latest compatibility information, see the ASM console.