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.
|
Version |
Release notes |
Status |
Release date |
Expiration date |
|
1.31 |
Released |
December 2024 |
December 2025 |
|
|
1.30 |
Released |
August 2024 |
June 2026 |
|
|
1.28 |
Released |
June 2024 |
October 2025 |
|
|
1.26 |
Released |
June 2024 |
April 2025 |
ACS supports Kubernetes 1.31 and all later versions. The list of supported versions is updated annually.
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.nVersions before 1.31 use the legacy format:
x.y.z-aliyunacs.nEach component represents:
|
Component |
Description |
Example |
|
x |
Major version |
1 |
|
y |
Minor version |
31 |
|
z |
Patch version |
1 |
|
n |
ACS patch version |
1 |
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 supports cluster creation on the latest three minor versions (N, N-1, and N-2). When a new minor version is added, the oldest supported version is removed from the creation list along with its outdated patch versions.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 (N-2), 1.30 (N-1), and 1.31 (N). 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Risks of running outdated versions
Clusters running outdated Kubernetes versions are subject to the following limitations:
No new features — ACS stops releasing new features for outdated versions.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 fixes or security patches — ACS stops fixing bugs and security vulnerabilities.
Limited technical support — ACS does not guarantee timely support, except for issues related to component updates.