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Updated on 2024-01-24 GMT+08:00
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Release Notes for CCE Cluster Versions

Version 1.25

All nodes in the CCE clusters of version 1.25, except the ones running EulerOS 2.5, use containerd by default.

Table 1 Release notes for the v1.25 patch

CCE Cluster Patch Version

Kubernetes Version

Feature Updates

Optimization

Vulnerability Fixing

v1.25.1-r0

v1.25.5

CCE clusters of v1.25 are released for the first time. For more information, see Kubernetes 1.25 Release Notes.

None

None

Version 1.23

Table 2 Release notes for the v1.23 patch

CCE Cluster Patch Version

Kubernetes Version

Feature Updates

Optimization

Vulnerability Fixing

v1.23.8-r0

v1.23.11

None
  • Enhanced Docker reliability during upgrades.
  • Optimized node time synchronization.

Fixed some security issues.

v1.23.5-r0

v1.23.11
  • Fault detection and isolation are supported on GPU nodes.
  • Security groups can be customized by cluster.
  • containerd is supported.
  • The ETCD version of the master node has been upgraded to the Kubernetes version 3.5.6.
  • Scheduling is optimized so that pods are evenly distributed across AZs after pods are scaled in.
  • Optimized the memory usage of kube-apiserver when CRDs are frequently updated.

Fixed some security issues and the following CVE vulnerabilities:

v1.23.1-r0

v1.23.4

CCE clusters of v1.23 are released for the first time. For more information, see Kubernetes 1.23 Release Notes.

None

None

Version 1.21

Table 3 Release notes for the v1.21 patch

CCE Cluster Patch Version

Kubernetes Version

Feature Updates

Optimization

Vulnerability Fixing

v1.21.10-r0

v1.21.14

None
  • Enhanced Docker reliability during upgrades.
  • Optimized node time synchronization.
  • Enhanced the stability of the Docker runtime for pulling images after nodes are restarted.

Fixed some security issues.

v1.21.7-r0

v1.21.14
  • Fault detection and isolation are supported on GPU nodes.
  • Security groups can be customized by cluster.

Improved the stability of LoadBalancer Services/ingresses with a large number of connections.

Fixed some security issues and the following CVE vulnerabilities:

v1.21.1-r0

v1.21.7

CCE clusters of v1.21 are released for the first time. For more information, see Kubernetes 1.21 Release Notes.

None

None

Version 1.19

Table 4 Release notes of the v1.19 patch

CCE Cluster Patch Version

Kubernetes Version

Feature Updates

Optimization

Vulnerability Fixing

v1.19.16-r20

v1.19.16

None
  • Enhanced the stability of the Docker runtime for pulling images after nodes are restarted.

Fixed some security issues.

v1.19.16-r4

v1.19.16
  • Fault detection and isolation are supported on GPU nodes.
  • Security groups can be customized by cluster.
  • Scheduling is optimized on taint nodes.
  • Enhanced the long-term running stability of containerd when cores are bound.
  • Improved the stability of LoadBalancer Services/ingresses with a large number of connections.
  • Optimized the memory usage of kube-apiserver when CRDs are frequently updated.

Fixed some security issues and the following CVE vulnerabilities:

v1.19.16-r0

v1.19.16

None

Enhanced the stability in updating LoadBalancer Services when workloads are upgraded and nodes are scaled in or out.

Fixed some security issues and the following CVE vulnerabilities:

v1.19.10-r0

v1.19.10

CCE clusters of v1.19 are released for the first time. For more information, see Kubernetes 1.19 Release Notes.

None

None
Parent topic: Cluster Overview