Kubernetes versions supported by Container Service for Kubernetes (ACK) - Container Service for Kubernetes

Container Service for Kubernetes (ACK) provides multiple cluster types, such as ACK managed clusters, ACK Edge clusters, and ACK Lingjun clusters. As new Kubernetes versions are released, ACK adds support for them and gradually discontinues support for outdated versions.

Kubernetes versions supported by ACK managed clusters

The following table lists the Kubernetes versions supported by ACK managed clusters. For versioning mechanism, see Version guide.

Version	Status	Release date	Discontinue date
1.34	Released	September 2025	September 30, 2026 Support lifecycle: 1 year. This version is in canary release.
1.33	Released	May 2025	May 31, 2026 Support lifecycle: 1 year.
1.32	Released	January 2025	January 31, 2026 Support lifecycle: 1 year.
1.31	Released	September 2024	September 30, 2025 Important Starting from v1.31, ACK has expanded its support for Kubernetes versions from only even-numbered minor releases, such as v1.28 and v1.30, to include all minor versions. Additionally, for Kubernetes minor versions 1.31 and later, the ACK support cycle has been adjusted to one year.
1.30	Released	June 2024	June 30, 2026
1.28	Released	October 2023	October 31, 2025

Discontinued Kubernetes versions

Important

Outdated Kubernetes versions may have security and stability issues. We recommend that you update your clusters to the latest version. For more information, see Manually upgrade a cluster and Automatically update a cluster.

Version	Status	Release date	Discontinue date
1.26	Discontinued	April 2023	April 2025
1.24	Discontinued	September 2022	September 2024
1.22	Discontinued	December 2021	October 2023
1.20	Discontinued	April 2021	April 2023
1.18	Discontinued	September 2020	September 2022
1.16	Discontinued	February 2020	June 2022
1.14	Discontinued	August 2019	July 2021
1.12	Discontinued	March 2019	December 2020

Kubernetes versions supported by ACK Edge clusters

The following table lists the Kubernetes versions supported by ACK Edge clusters:

Version	Status	Release date	Discontinue date
1.32	Released	March 2025	March 2026 Important ACK Edge provdes a support cycle of one year for Kubernetes 1.32 and later minor versions.
1.30	Released	November 2024	November 2026
1.28	Released	July 2024	July 2026
1.26	Released	October 2023	October 2025
1.24	Released	March 2023	September 2025

Discontinued ACK Edge cluster versions

Important

Outdated Kubernetes versions may pose security and stability threats. Update your clusters to a supported version as soon as possible. For more information, see Upgrade a cluster.

Version	Status	Release date	Discontinue date
1.22	Discontinued	June 2022	June 2024
1.20	Discontinued	October 2021	October 2023
1.18	Discontinued	March 2021	March 2023
1.16	Discontinued	August 2020	August 2022

Kubernetes versions supported by ACK Lingjun clusters

The following table lists the Kubernetes versions supported by ACK Lingjun clusters:

Version	Status	Release date	Discontinue date
1.31	Released	Jan 2025	Subject to the actual situation of ACK Lingjun clusters
1.30	Released	Jan 2025	Subject to the actual situation of ACK Lingjun clusters
1.28	Released	Dec 2023	Subject to the actual situation of ACK Lingjun clusters
1.22	Outdated	Nov 2023	Subject to the actual situation of ACK Lingjun clusters
1.20	Outdated	Apr 2023	Nov 2023