# CCE Cluster Version Release Notes

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.

#### V1.23

Table 1 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 2 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 3 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 4 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 5 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 6 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 7 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.

Parent topic: Product Bulletin