All Products
Search

This Product

    Container Compute Service:Kubernetes version overview and support policy

    Document Center

    Container Compute Service:Kubernetes version overview and support policy

    Last Updated:Feb 27, 2026

    Container Compute Service (ACS) supports multiple Kubernetes versions based on open source Kubernetes. As new Kubernetes versions are released, ACS adds them to the supported list and phases out older versions.

    Supported versions

    ACS currently supports the following Kubernetes versions.

    VersionRelease notesStatusRelease dateExpiration date
    1.31Kubernetes 1.31 release notesReleasedDecember 2024December 2025
    1.30Kubernetes 1.30 release notesReleasedAugust 2024June 2026
    1.28Kubernetes 1.28 release notesReleasedJune 2024October 2025
    1.26Kubernetes 1.26 release notesReleasedJune 2024April 2025
    Important

    ACS supports Kubernetes 1.31 and all later versions. The list of supported versions is updated annually.

    Important

    The release dates in this table indicate when ACS started supporting each version. For actual expiration dates, see Release notes for Kubernetes versions supported by ACK.

    Version naming format

    Starting from Kubernetes 1.31, ACS versions use the following format:

    x.y.z-aliyun.n

    Versions before 1.31 use the legacy format:

    x.y.z-aliyunacs.n

    Each component represents:

    ComponentDescriptionExample
    xMajor version1
    yMinor version31
    zPatch version1
    nACS patch version1

    For example, 1.31.1-aliyun.1 is based on open source Kubernetes 1.31.1. For more information, see Kubernetes Release Versioning.

    Version support policy

    Cluster creation

    ACS allows cluster creation for the latest three minor versions. When a new version is added, the oldest supported version is removed from the creation list, along with its outdated patch versions.

    For example, when ACS added support for Kubernetes 1.31, the supported creation versions became 1.28, 1.30, and 1.31. Kubernetes 1.26 clusters can no longer be created.

    Technical support

    ACS provides technical support for all versions that are still available. This includes consultation, online tutorials, and troubleshooting.

    Risks of running outdated versions

    Clusters running outdated Kubernetes versions are subject to the following limitations:

    • No new features -- ACS stops releasing new features for outdated versions.

    • No bug or security fixes -- ACS stops fixing feature defects and security vulnerabilities.

    • Limited technical support -- ACS does not guarantee timely support, except for issues related to component updates.