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Container Service for Kubernetes:Operating system image release notes

Last Updated:Mar 26, 2026

This topic tracks OS image updates for Container Service for Kubernetes (ACK) nodes, listed in reverse chronological order.

Supported operating systems

For the full list of supported operating systems, see Operating systems.

Important

When an OS version reaches end of life (EOL), Alibaba Cloud stops providing technical support for ECS instances running that version. Alibaba Cloud Linux 2 reached EOL on March 31, 2024, and CentOS reached EOL on June 30, 2024. To maintain technical support and business stability, use Alibaba Cloud Linux 3 or ContainerOS. For details, see \[Product Change\] Announcement on the Discontinuation of Maintenance for Alibaba Cloud Linux 2 and CentOS 7.

Change log

January 2026

OS name OS version Kernel version Release date Release details
ContainerOS 3.7.0 lifsea_3_x64_5G_alibase_20260113.qcow2 kernel-5.10.134-19.1.1.lifsea8 January 28, 2026 For more information, see ContainerOS image release notes.
lifsea_3_x64_10G_alibase_nvidia_570_20260113.qcow2

December 2025

OS name OS version Kernel version Release date Release details
ContainerOS 3.6.2 lifsea_3_x64_5G_alibase_20251204.qcow2 kernel-5.10.134-19.1.1.lifsea8 December 15, 2025 For more information, see ContainerOS image release notes.

November 2025

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 4 LTS 64-bit Container-Optimized Edition aliyun_4_x64_20G_container_optimized_alibase_20251106.vhd kernel-6.6.102-5.alnx4 November 21, 2025 This is a phased release. For more information, see Alibaba Cloud Linux 4 image release notes.
ContainerOS 3.6.1 lifsea_3_x64_5G_alibase_20251101.qcow2 kernel-5.10.134-19.1.1.lifsea8 November 5, 2025 For more information, see ContainerOS image release notes.

October 2025

OS name OS version Kernel version Release date Release details
ContainerOS 3.6.0 lifsea_3_x64_5G_alibase_20250916.qcow2 kernel-5.10.134-19.1.1.lifsea8 October 10, 2025 For more information, see ContainerOS image release notes.

September 2025

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 3.2104 Container-Optimized ARM Edition aliyun_3_arm64_20G_container_optimized_alibase_20250629.vhd kernel-5.10.134-19.1.al8.aarch64 September 19, 2025 For more information, see Alibaba Cloud Linux 3 image release notes.

August 2025

OS name OS version Kernel version Release date Release details
Ubuntu 22.04 ubuntu_22_04_x64_20G_alibase_20250722.vhd 5.15.0-144-generic August 19, 2025 For more information, see Ubuntu.
ContainerOS 3.5.1 lifsea_3_x64_5G_alibase_20250805.qcow2 kernel-5.10.134-19.1.1.lifsea8 August 15, 2025 For more information, see ContainerOS image release notes.

June 2025

OS name OS version Kernel version Release date Release details
ContainerOS 3.5.0 lifsea_3_x64_5G_alibase_20250619.qcow2 5.10.134-18.0.2.lifsea8 June 20, 2025 For more information, see ContainerOS image release notes.

April 2025

OS name OS version Kernel version Release date Release details
ContainerOS 3.4.0 lifsea_3_x64_5G_alibase_20250410.qcow2 5.10.134-18.0.2.lifsea8 April 14, 2025 For more information, see ContainerOS image release notes.

February 2025

OS name OS version Kernel version Release date Release details
ContainerOS 3.3.3 lifsea_3_x64_10G_alibase_20250210.qcow2 5.10.134-18.0.1.lifsea8 February 14, 2025 For more information, see ContainerOS image release notes.

January 2025

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 3.2104 Container-Optimized aliyun_3_x64_20G_container_optimized_20241226.vhd 5.10.134-18.al8.x86_64 January 3, 2025 For more information, see Alibaba Cloud Linux 3 image release notes.
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20241218.vhd 5.10.134-18.al8.x86_64 January 3, 2025 For more information, see Alibaba Cloud Linux 3 image release notes.

December 2024

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20241103.vhd 5.10.134-17.3.al8.x86_64 December 24, 2024 For more information, see Alibaba Cloud Linux 3 image release notes.
ContainerOS 3.3.2 lifsea_3_x64_10G_alibase_20241202.qcow2 5.10.134-17.3.1.lifsea8 December 6, 2024 For more information, see ContainerOS image release notes.

November 2024

OS name OS version Kernel version Release date Release details
Ubuntu 22.04 64 bit ARM Edition ubuntu_22_04_arm64_20G_alibase_20241024.vhd 5.15.0-124-generic November 12, 2024 Clusters of version 1.30 and later support Ubuntu as the node operating system.

October 2024

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20240819.vhd 5.10.134-17.2.al8 October 15, 2024 For more information, see Alibaba Cloud Linux 3 image release notes.

September 2024

OS name OS version Kernel version Release date Release details
ContainerOS 3.3.1 lifsea_3_x64_10G_alibase_20240918.qcow2 5.10.134-17.2.1.lifsea8.x86_64 September 24, 2024 Critical software versions: containerd 1.6.34. kubelet is not included.

July 2024

OS name OS version Kernel version Release date Release details
ContainerOS 3.3 lifsea_3_x64_10G_containerd_1_6_28_alibase_20240705.vhd 5.10.134-17.0.2.lifsea8.x86_64 July 22, 2024 Critical software versions: containerd 1.6.28. kubelet is not included.
ContainerOS 3.2.3 lifsea_3_x64_10G_containerd_1_6_28_alibase_20240703.vhd 5.10.134-16.1.1.lifsea8.x86_64 July 22, 2024 Critical software versions: containerd 1.6.28. kubelet is not included.
Ubuntu 22.04 ubuntu_22_04_x64_20G_alibase_20240508.vhd 5.15.0-106-generic.x86_64 July 12, 2024 Clusters of version 1.30 and later support Ubuntu as the node operating system.
Alibaba Cloud Linux 3.2104 ARM Edition aliyun_3_arm64_20G_alibase_20240528.vhd 5.10.134-16.3.al8.aarch64 July 10, 2024 For more information, see Alibaba Cloud Linux 3 image release notes.

June 2024

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20240528.vhd 5.10.134-16.3.al8.x86_64 June 26, 2024 For more information, see Alibaba Cloud Linux 3 image release notes.

January 2024

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20231221.vhd 4.19.91-27.7.al7.x86_64 January 26, 2024 For more information, see Alibaba Cloud Linux 2 image release notes.
Alibaba Cloud Linux 3.2104 aliyun_3_9_x64_20G_alibase_20231219.vhd 5.10.134-16.1.al8.x86_64 January 24, 2024 For more information, see Alibaba Cloud Linux 3 image release notes.
ContainerOS 3 lifsea_3_x64_10G_containerd_1_6_28_alibase_20240202.vhd 5.10.134-16.1.1.lifsea8.x86_64 January 19, 2024 Critical software versions: containerd 1.6.28. kubelet is not included.

December 2023

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20231008.vhd 4.19.91-27.6.al7.x86_64 December 6, 2023 For more information, see Alibaba Cloud Linux 2 image release notes.

November 2023

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux UEFI 3.2104 Security Enhanced aliyun_3_x64_20G_uefi_alibase_20230727.vhd 5.10.134-15.al8.x86_64 November 15, 2023 For more information, see Alibaba Cloud Linux 3 image release notes.
ContainerOS 3 lifsea_3_x64_10G_containerd_1_6_20_alibase_20231025.vhd 5.10.134-15.1.2.lifsea8.x86_64 November 3, 2023 Critical software versions: containerd 1.6.20. kubelet is not included.

October 2023

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20230731.vhd 4.19.91-27.5.al7.x86_64 October 10, 2023 For more information, see Alibaba Cloud Linux 2 image release notes.

September 2023

OS name OS version Kernel version Release date Release details
CentOS 7.9 centos_7_9_x64_20G_alibase_20230718.vhd 3.10.0-1160.92.1.el7.x86_64 September 6, 2023 For more information, see Public image release notes.

August 2023

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20230704.vhd 4.19.91-27.4.al7.x86_64 August 1, 2023 For more information, see Alibaba Cloud Linux 2 image release notes.

July 2023

OS name OS version Kernel version Release date Release details
ContainerOS 1.26.3 lifsea_3_x64_10G_k8s_1_26_3_alibase_20230717.vhd 5.10.134-12.2.1.lifsea8.x86_64 July 21, 2023 Critical software versions: kubelet 1.26.3, containerd 1.6.20.
ContainerOS 1.24.6 lifsea_3_x64_10G_k8s_1_24_6_alibase_20230717.vhd 5.10.134-12.2.1.lifsea8.x86_64 July 21, 2023 Critical software versions: kubelet 1.24.6, containerd 1.6.20.
ContainerOS 1.22.15 lifsea_3_x64_10G_k8s_1_22_15_alibase_20230717.vhd 5.10.134-12.2.1.lifsea8.x86_64 July 21, 2023 Critical software versions: kubelet 1.22.15, containerd 1.5.13.
Alibaba Cloud Linux 3.2104 ARM Edition aliyun_3_arm64_20G_alibase_20230515.vhd 5.10.134-14.al8.aarch64 July 3, 2023 For more information, see Alibaba Cloud Linux 3 image release notes.

June 2023

OS name OS version Kernel version Release date Release details
ContainerOS 1.26.3 lifsea_3_x64_10G_k8s_1_26_3_alibase_20230619.vhd 5.10.134-12.2.1.lifsea8.x86_64 June 28, 2023 Critical software versions: kubelet 1.26.3, containerd 1.6.20.
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20230522.vhd 4.19.91-27.3.al7.x86_64 June 28, 2023 For more information, see Alibaba Cloud Linux 2 image release notes.

May 2023

OS name OS version Kernel version Release date Release details
ContainerOS 1.24.6 lifsea_3_x64_10G_k8s_1_24_6_alibase_20230513.vhd 5.10.134-12.2.1.lifsea8.x86_64 May 19, 2023 Critical software versions: kubelet 1.24.6, containerd 1.5.13.
Alibaba Cloud Linux 3.2104 ARM Edition aliyun_3_arm64_20G_alibase_20230327.vhd 5.10.134-13.1.al8.aarch64 May 8, 2023 For more information, see Alibaba Cloud Linux 3 image release notes.

April 2023

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20230308.vhd 4.19.91-27.1.al7.x86_64 April 27, 2023 For more information, see Alibaba Cloud Linux 2 image release notes.
ContainerOS 1.24.6 lifsea_3_x64_10G_k8s_1_24_6_alibase_20230420_148.vhd 5.10.134-12.2.1.lifsea8.x86_64 April 25, 2023 Critical software versions: kubelet 1.24.6, containerd 1.5.13.
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20230327.vhd 5.10.134-13.1.al8.x86_64 April 24, 2023 For more information, see Alibaba Cloud Linux 3 image release notes.

February 2023

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20230110.vhd 5.10.134-13.al8.x86_64 February 20, 2023 For more information, see Alibaba Cloud Linux 3 image release notes.
ContainerOS 1.24.6 lifsea_3_x64_10G_k8s_1_24_6_alibase_20230117.vhd 5.10.112-11.1.lifsea8.x86_64 February 3, 2023 Critical software versions: kubelet 1.24.6, containerd 1.5.13.

January 2023

OS name OS version Kernel version Release date Release details
CentOS 7.9 centos_7_9_x64_20G_alibase_20221129.vhd 3.10.0-1160.80.1.el7.x86_64 January 10, 2023 For more information, see Public image release notes.
Alibaba Cloud Linux 3.2104 ARM Edition aliyun_3_arm64_20G_alibase_20221118.vhd 5.10.134-12.2.al8.x86_64 January 10, 2023 For more information, see Alibaba Cloud Linux 3 image release notes.

December 2022

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20221102.vhd 5.10.134-12.2.al8.x86_64 December 14, 2022 For more information, see Alibaba Cloud Linux 3 image release notes.
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20221102.vhd 4.19.91-26.6.al7.x86_64 December 14, 2022 For more information, see Alibaba Cloud Linux 2 image release notes.

November 2022

OS name OS version Kernel version Release date Release details
ContainerOS 1.24.6 lifsea_3_x64_10G_k8s_1_24_6_alibase_20221101.vhd 5.10.134-12.2.al8.x86_64 November 16, 2022 Critical software versions: kubelet 1.24.6, containerd 1.5.13.
ContainerOS 1.22.15 lifsea_3_x64_10G_k8s_1_22_15_alibase_20221101.vhd 5.10.134-12.2.al8.x86_64 November 16, 2022 Critical software versions: kubelet 1.22.15, containerd 1.5.13.

September 2022

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20220815.vhd 5.10.112-11.2.al8.x86_64 September 20, 2022 For more information, see Alibaba Cloud Linux 3 image release notes.
CentOS 7.9 centos_7_9_x64_20G_alibase_20220824.vhd 3.10.0-1160.76.1.el7.x86_64 September 19, 2022 For more information, see Public image release notes.
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20220815.vhd 4.19.91-26.1.al7.x86_64 September 19, 2022 For more information, see Alibaba Cloud Linux 2 image release notes.

August 2022

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20220727.vhd 4.19.91-26.al7.x86_64 August 31, 2022 For more information, see Alibaba Cloud Linux 2 image release notes.
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20220728.vhd 5.10.112-11.1.al8.x86_64 August 31, 2022 For more information, see Alibaba Cloud Linux 3 image release notes.
CentOS 7.9 centos_7_9_x64_20G_alibase_20220727.vhd 3.10.0-1160.71.1.el7.x86_64 August 31, 2022 For more information, see Public image release notes.
ContainerOS 1.24.3 lifsea_3_x64_10G_k8s_1_24_3_alibase_20220809.vhd 5.10.112-11.1.al8.x86_64 August 19, 2022 Critical software versions: kubelet 1.24.3, containerd 1.5.10.
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20220701.vhd 4.19.91-26.al7.x86_64 August 3, 2022 For more information, see Alibaba Cloud Linux 2 image release notes.
Alibaba Cloud Linux UEFI 2.1903 Security Enhanced aliyun_2_1903_x64_20G_uefi_alibase_20220525.vhd 4.19.91-26.al7 August 3, 2022 For more information, see Alibaba Cloud Linux 2 image release notes.

July 2022

OS name OS version Kernel version Release date Release details
ContainerOS 1.22.10 lifsea_3_x64_10G_k8s_1_22_10_alibase_20220705.vhd 5.10.112-11.al8.x86_64 July 22, 2022 Critical software versions: kubelet 1.22.10, containerd 1.5.10.
CentOS 7.9 centos_7_9_x64_20G_alibase_20220524.vhd 3.10.0-1160.66.1.el7.x86_64 July 20, 2022 For more information, see Public image release notes.

June 2022

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20220527.vhd 5.10.112-11.al8.x86_64 June 24, 2022 For more information, see Alibaba Cloud Linux 3 image release notes.
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20220525.vhd 4.19.91-26.al7 June 17, 2022 For more information, see Alibaba Cloud Linux 2 image release notes.
ContainerOS 1.20.4 lifsea_3_x64_10G_k8s_1_20_4_alibase_20220530.vhd 5.10.112-11.1.lifsea8.x86_64 June 17, 2022 Critical software versions: kubelet 1.20.4, containerd 1.15.10.
ContainerOS 1.20.11 lifsea_3_x64_10G_k8s_1_20_11_alibase_20220530.vhd 5.10.112-11.1.lifsea8.x86_64 June 17, 2022 Critical software versions: kubelet 1.20.11, containerd 1.15.10.
ContainerOS 1.22.3 lifsea_3_x64_10G_k8s_1_22_3_alibase_20220530.vhd 5.10.112-11.1.lifsea8.x86_64 June 17, 2022 Critical software versions: kubelet 1.22.3, containerd 1.15.10.

March 2022

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 2.1903 aliyun_2_1903_x64_20G_alibase_20220225.vhd 4.19.91-25.6.al7.x86_64 March 14, 2022 For more information, see Alibaba Cloud Linux 2 image release notes.
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20220225.vhd 5.10.84-10.2.al8.x86_64 March 14, 2022 For more information, see Alibaba Cloud Linux 3 image release notes.
CentOS 7.9 centos_7_9_x64_20G_alibase_20220208.vhd 3.10.0-1160.53.1.el7.x86_64 March 14, 2022 For more information, see Public image release notes.

February 2022

OS name OS version Kernel version Release date Release details
ContainerOS 1.22.3 lifsea_3_x64_10G_k8s_1_22_3_alibase_20220113.vhd 5.10.23-5.8.lifsea8.x86_64 February 22, 2022 The ContainerOS base image is published. Critical software versions: kubelet 1.22.3, containerd 1.4.8.
Note

ContainerOS images are applicable to most instance families, except for ECS Bare Metal Instance and heterogeneous computing instance families.

December 2021

OS name OS version Kernel version Release date Release details
Alibaba Cloud Linux 3.2104 aliyun_3_x64_20G_alibase_20210425.vhd 5.10.23-5.al8.x86_64 December 20, 2021 For more information, see Alibaba Cloud Linux 3 image release notes.

November 2021

OS name OS version Kernel version Release date Release details
ContainerOS 1.20.11 lifsea_3_x64_10G_k8s_1_20_11_alibase_20211103.vhd 5.10.23-5.8.lifsea8.x86_64 November 6, 2021 Critical software versions: kubelet 1.20.11, containerd 1.4.8.

October 2021

OS name OS version Kernel version Release date Release details
ContainerOS 1.20.4 lifsea_3_x64_10G_k8s_1_20_4_alibase_20210917.vhd 5.10.23-5.8.lifsea8.x86_64 October 15, 2021 The ContainerOS base image is published. Critical software versions: kubelet 1.20.4, containerd 1.4.8. The image is based on the 5.10 kernel of Alibaba Cloud Linux 3.2104 64-bit; initramfs is removed to improve startup speed, and some required kernel modules are compiled as built-in modules.
Note

ContainerOS images are applicable to most instance families, except for ECS Bare Metal Instance and heterogeneous computing instance families.

August 2021

OS version Kernel version Release date Release details
aliyun_2_1903_x64_20G_alibase_20210726.vhd 4.19.91-24.1.al7.x86_64 August 20, 2021 For more information, see Alibaba Cloud Linux 2 image release notes.

April 2021

OS version Kernel version Release date Release details
aliyun_2_1903_x64_20G_alibase_20210325.vhd 4.19.91-23.al7.x86_64 April 19, 2021 For more information, see Alibaba Cloud Linux 2 image release notes.
centos_7_9_x64_20G_alibase_20210318.vhd 3.10.0-1160.15.2.el7.x86_64 April 19, 2021 For more information, see Public image release notes.

March 2021

OS version Kernel version Release date Release details
centos_7_9_x64_20G_alibase_20210128.vhd 3.10.0-1160.11.1.el7.x86_64 March 3, 2021 For more information, see Public image release notes.

January 2021

OS version Kernel version Release date Release details
aliyun_2_1903_x64_20G_alibase_20210120.vhd kernel-4.19.91-22.2.al7 January 27, 2021 For more information, see Alibaba Cloud Linux 2 image release notes.

December 2020

OS version Kernel version Release date Release details
centos_7_8_x64_20G_alibase_20200914.vhd 3.10.0-1127.19.1.el7.x86_64 December 22, 2020 For more information, see Public image release notes.

October 2020

OS version Kernel version Release date Release details
aliyun_2_1903_x64_20G_alibase_20200904.vhd 4.19.91-21.al7.x86_64 October 20, 2020 For more information, see Alibaba Cloud Linux 2 image release notes.

July 2020

OS version Kernel version Release date Release details
aliyun_2_1903_x64_20G_alibase_20200529.vhd 4.19.91-19.1.al7.x86_64 July 6, 2020 For more information, see Alibaba Cloud Linux 2 image release notes.
centos_7_7_x64_20G_alibase_20200426.vhd 3.10.0-1062.18.1.el7.x86_64 July 6, 2020 For more information, see Public image release notes.