To ensure that stable and reliable Kubernetes versions are available during your use of CCE, CCE provides the Kubernetes version support mechanism. A new supported version will be released every half a year with a support period of one year. You must upgrade your Kubernetes clusters before the support period ends.

V1.25

**Table 1** Feature description of clusters of v1.25
Kubernetes Version	Description
v1.25	Main features: Incorporates features of Kubernetes v1.25. PodSecurityPolicy is replaced by Pod Security Admission. The LegacyServiceAccountTokenNoAutoGeneration feature is in beta state. By default, this feature is enabled and no more secret token will be automatically generated for the service account. If you want to use a token that never expires, you need to create a secret and mount it. For details, see Service account token Secrets.

V1.23

**Table 2** Feature description of clusters of v1.23
Kubernetes Version	Description
v1.23	Main features: Incorporates features of Kubernetes v1.23, the relevant Docker engine is version 18.09 and the operating system version is EulerOS 2.5, EulerOS 2.9 or Centos7.7. Egress rules can be configured when adding a Network Policy.

V1.21

**Table 3** Feature description of clusters of v1.21
Kubernetes Version	Description
v1.21	Main features: Incorporates features of Kubernetes v1.21. Two-way authentication is supported for domain name access. The Docker storage mode of nodes running CentOS 7 in CCE clusters is changed from Device Mapper to OverlayFS.

V1.19

**Table 4** Feature description of clusters of v1.19
Kubernetes Version	Description
v1.19.10	Main features: EulerOS 2.5 and CentOS 7.7 are supported. Incorporates features of Kubernetes v1.19.10.
v1.19.8	Main features: EulerOS 2.5 and CentOS 7.7 are supported. Features of Kubernetes v1.19.8 are incorporated. Pod security policies (PSPs) can be configured for a cluster.

V1.17

**Table 5** Feature description of clusters of v1.17
Kubernetes	Description
v1.17.9-r0	Main features: Support for EulerOS 2.5 and CentOS 7.7. Incorporates features of Kubernetes v1.17.9.

V1.15

**Table 6** Feature description of clusters of v1.15
Kubernetes	Description
v1.15.11-r1	Main features: EulerOS 2.5 is supported. Incorporates features of Kubernetes v1.15.11.
v1.15.6-r1	Main features: EulerOS 2.5 is supported. Support for GPU-accelerated. Kubernetes parameters can be dynamically configured. For details, see Configuring Kubernetes Parameters and Managing a Node Pool. CCE storage supports CSI-based cloud-native container storage systems. For details, see everest.

V1.13

**Table 7** Feature description of clusters of v1.13
Kubernetes (CCE Enhanced Version)	Description
v1.13.10-r0	Main features: Support for EulerOS 2.5. Support for GPU-accelerated. Incorporates features of Kubernetes v1.13.10.

V1.11 and Earlier Versions

**Table 8** Feature description of clusters of v1.11 or earlier
Kubernetes (CCE Enhanced Version)	Description
v1.11.7-r2	Main features: Support for GPU-accelerated. Support for EulerOS 2.2. Incorporates features of Kubernetes v1.11.7.
v1.9.10-r2	Main features: Incorporates features of Kubernetes v1.9.10.

CCE Cluster Version Release Notes