This topic describes the updates to Alibaba Cloud Linux 3 images. The release notes are ordered by release date, from the latest to the earliest.

Background information

  • Unless otherwise stated, the released updates apply to all Alibaba Cloud regions where Elastic Compute Service (ECS) is available.
  • Some Alibaba Cloud Linux 3 images are applicable to most instance families, whereas other Alibaba Cloud Linux 3 images are applicable only to some instance families. For more information, see Release notes of images that are applicable only to some instance families.

Release notes

Image ID Release date Description
aliyun_3_x64_20G_alibase_20210425.vhd 2021-04-25
  • The Alibaba Cloud Linux 3.2104 64-bit base image is updated.
  • Kernel updates: The kernel is updated to the 5.10.23-5.al8.x86_64 version.
aliyun_3_x64_20G_alibase_20210415.vhd 2021-04-16
  • The Alibaba Cloud Linux 3.2104 64-bit base image is released.
  • Kernel description:
    • The kernel is based on the 5.10 kernel version supported in the Linux community. The 5.10.23-4.al8.x86_64 kernel version is used in the base image.
    • The ARM 64-bit architecture supports the PV-Panic, PV-Unhalt, and PV-Preempt features.
    • The ARM 64-bit architecture supports Kernel Live Patching (KLP).
    • TCP-layer service monitoring (TCP-RT) is supported.
    • The memcg backend asynchronous reclaim feature is supported.
    • The memcg quality of service (QoS) and Pressure Stall Information (PSI) features implemented based on cgroup v1 interfaces are supported.
    • The cgroup writeback feature is supported.
    • The monitoring of block I/O throttling is enhanced.
    • An interface is provided to optimize JBD2 of ext4.
    • The open source kernel of Alibaba Cloud is optimized and vulnerabilities in multiple subsystems including the scheduler, memory, file system, and block layer are fixed.
  • Image description:
    • The base image is compatible with the CentOS 8 and RHEL 8 software ecosystems. Common vulnerabilities and exposures (CVEs) are fixed.
    • GCC 10.2.1 and glibc 2.32 are supported.
    • Python 3.6 and Python 2.7 are supported.
    • AppStream is supported.
  • Applicable regions: China (Hangzhou).

Release notes of images that are applicable only to some instance families

Image ID Release date Applicable instance family Description
aliyun_3_arm64_20G_alibase_20210709.vhd 2021-07-09
  • ecs.g6r
  • ecs.c6r
  • The Alibaba Cloud Linux 3.2104 64-bit (ARM) image is released.
  • Security Center can be connected.
  • Applicable regions: China (Hangzhou).
aliyun_3_x64_20G_uefi_alibase_20210425.vhd 2021-04-25
  • ecs.c7
  • ecs.g7
  • ecs.r7
  • ecs.c7t
  • ecs.g7t
  • ecs.r7t
  • The Alibaba Cloud Linux 3.2104 64-bit (UEFI) image is released.
  • This image is derived from the aliyun_3_x64_20G_alibase_20210425.vhd version of the Alibaba Cloud Linux 3.2104 64-bit base image.
  • Boot mode is changed to the Unified Extensible Firmware Interface (UEFI) mode. This is the only supported mode.
  • Applicable regions: China (Beijing), China (Hangzhou), China (Shanghai), and China (Shenzhen).