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:Release notes for BaseOS images

Last Updated:Dec 19, 2025

BaseOS images are base container images for Alibaba Cloud AI Containers (AC2). BaseOS images include Alibaba Cloud Linux BaseOS images and Ubuntu BaseOS images.

Images

Image

Address

Image content

Alibaba Cloud Linux 3 BaseOS image

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104

Alibaba Cloud Linux 3.2104

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310

Python: 3.10.13

Alibaba Cloud Linux 3.2104

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310-optimised

Python: 3.10.13+gc

Alibaba Cloud Linux 3.2104

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py312

Python: 3.12.7

Alibaba Cloud Linux 3.2104

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2304

Alibaba Cloud Linux 3.2304

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2304-optimised

Python: 3.10.13+gc

Alibaba Cloud Linux 3.2304

Ubuntu BaseOS image

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04

Ubuntu 22.04

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310

Python: 3.10.13

Ubuntu 22.04

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310-optimised

Python: 3.10.13+gc

Ubuntu 22.04

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04

Ubuntu 24.04

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312

Python: 3.12.7

Ubuntu 24.04

ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312-optimised

Python: 3.12.7+gc

Ubuntu 24.04

Image content

base:alinux3.2104

  • glibc 2.32

  • libgcc 10.2.1

base:alinux3.2104-py310

  • glibc 2.32

  • libgcc 10.2.1

  • python3 3.10.13

  • pip 25.3

  • setuptools 80.9.0

  • wheel 0.45.0

base:alinux3.2104-py310-optimised

  • glibc 2.32

  • libgcc 10.2.1

  • python3 3.10.13+gc

  • pip 25.3

  • setuptools 80.9.0

  • wheel 0.45.0

base:alinux3.2104-py312

  • glibc 2.32

  • libgcc 10.2.1

  • python3 3.12.7

  • pip 25.3

  • setuptools 80.9.0

  • wheel 0.45.0

base:alinux3.2304

  • glibc 2.36

  • libgcc 12.2.1

  • python3 3.10.13

base:alinux3.2304-optimised

  • glibc 2.36

  • libgcc 12.2.1

  • python3 3.10.13+gc

base:ubuntu22.04

  • glibc 2.35

  • libgcc 12.3.0

base:ubuntu22.04-py310

  • glibc 2.35

  • libgcc 12.3.0

  • python3 3.10.13

  • pip 25.3

  • setuptools 80.9.0

  • wheel 0.45.0

base:ubuntu22.04-py310-optimised

  • glibc 2.35

  • libgcc 12.3.0

  • python3 3.10.13+gc

  • pip 25.3

  • setuptools 80.9.0

  • wheel 0.45.0

base:ubuntu24.04

  • glibc 2.39

  • libgcc 14.2.0

base:ubuntu24.04-py312

  • glibc 2.39

  • libgcc 14.2.0

  • python3 3.12.7

  • pip 25.3

  • setuptools 80.9.0

  • wheel 0.45.0

base:ubuntu24.04-py312-optimised

  • glibc 2.39

  • libgcc 14.2.0

  • python3 3.12.7+gc

  • pip 25.3

  • setuptools 80.9.0

  • wheel 0.45.0

Operational requirements

The images are general-purpose images and have no special requirements for running.

Important features

Images with the `optimised` tag are BaseOS (Optimized) images. These images are built on BaseOS images and include the garbage collection (GC) optimization for Python 3. This optimization effectively reduces GC pause issues in AI scenarios.

Updates

  • December 2025

    Updated the Alibaba Cloud Linux 3.2104 base images, updated pip, and fixed CVEs.

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310-optimised

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py312

  • November 2025

    Updated the Ubuntu 22.04 and Ubuntu 24.04 base images, updated pip, and fixed CVEs.

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310-optimised

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312-optimised

  • September 2025

    Updated the Alibaba Cloud Linux 3.2104 base images.

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310-optimised

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py312

  • July 2025

    Updated the Ubuntu 22.04 and Ubuntu 24.04 base images.

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310-optimised

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312-optimised

  • June 2025

    Updated the Ubuntu 24.04 base images, updated setuptools, and fixed CVEs.

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312-optimised

  • May 2025

    Updated the Ubuntu 22.04 and Ubuntu 24.04 base images.

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312-optimised

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310-optimised

  • February 2025

    Updated the Ubuntu 22.04 and Ubuntu 24.04 base images.

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312-optimised

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310-optimised

  • January 2025

    • Updated the Alibaba Cloud Linux 3.2104 base images to Alibaba Cloud Linux 3.11.

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310-optimised

    • Updated the Ubuntu 24.04 base images with the latest GC optimization patch.

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312-optimised

  • December 2024

    Released the Ubuntu 24.04 base images. The py312 image includes Python 3.12.7, and the optimised image includes the GC optimization for Python 3.

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu24.04-py312-optimised

  • November 2024

    • Updated the Alibaba Cloud Linux 3.2104-based images to version 3.10.1. The /opt/ac2 directory in the py310 images was optimized by removing unnecessary folders and files.

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310-optimised

    • Updated the Ubuntu 22.04 base images. The source repository address was set to mirrors.cloud.aliyuncs.com. The /opt/ac2 directory in the py310 images was optimized by removing unnecessary folders and files.

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310-optimised

  • October 2024

    Updated the Ubuntu 22.04, Ubuntu 22.04-py310, and Ubuntu 22.04-py310-optimised images.

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310-optimised

  • September 2024

    Updated the base images to fix CVE-2024-6345 in setuptools.

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310-optimised

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310

    • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310-optimised

  • August 2024

    Updated Ubuntu 22.04.

    ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04

  • July 2024

    • Updated Ubuntu 22.04.

      ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04

    • Updated the Ubuntu 22.04, Alibaba Cloud Linux 3.2104, and Alibaba Cloud Linux 3.2304 images to use a consistent Python 3 version.

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04-py310-optimised

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2304-py310

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2304-py310-optimised

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310

      • ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2104-py310-optimised

  • June 2024

    Updated the Ubuntu 22.04 image.

    ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04

  • May 2024

    • Updated the Alibaba Cloud Linux 3.2304 base image and added base components.

      ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2304

    • Updated the Ubuntu 22.04 base image.

      ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04

    • Released the alinx3.2304-optimised image, which includes the GC optimization for Python 3.

      ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2304-optimised

  • April 2024

    • Released the base:ubuntu22.04 base image.

      ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:ubuntu22.04

    • Released the base:alinux3.2304 base image.

      ac2-registry.cn-hangzhou.cr.aliyuncs.com/ac2/base:alinux3.2304