AWS Documentation » Amazon EKS » User Guide » Amazon EKS Clusters » Platform Versions

Platform Versions

Amazon EKS platform versions represent the capabilities of the cluster control plane, such as which Kubernetes API server flags are enabled, as well as the current Kubernetes patch version. Each Kubernetes minor version has one or more associated Amazon EKS platform versions. The platform versions for different Kubernetes minor versions are independent.

When a new Kubernetes minor version is available in Amazon EKS (for example, 1.12), the initial Amazon EKS platform version for that Kubernetes minor version starts at eks.1. However, Amazon EKS releases new platform versions periodically to enable new Kubernetes control plane settings and to provide security fixes.

When new Amazon EKS platform versions become available for a minor version:

• The Amazon EKS platform version number is incremented (eks.n+1).

• Amazon EKS automatically upgrades all existing clusters to the latest Amazon EKS platform version for their corresponding Kubernetes minor version.

• Amazon EKS might publish a new worker AMI with a corresponding patch version. However, all patch versions are compatible between the EKS control plane and worker AMIs for a given Kubernetes minor version.

New Amazon EKS platform versions don't introduce breaking changes or cause service interruptions.

Note

Automatic upgrades of existing Amazon EKS platform versions are rolled out incrementally. The roll-out process might take some time. If you need the latest Amazon EKS platform version features immediately, you should create a new Amazon EKS cluster.

Clusters are always created with the latest available Amazon EKS platform version (eks.n) for the specified Kubernetes version. If you update your cluster to a new Kubernetes minor version, your cluster receives the current Amazon EKS platform version for the Kubernetes minor version that you updated to.

The current and recent Amazon EKS platform versions are described in the following tables.

Kubernetes version 1.12

Kubernetes Version	Amazon EKS Platform Version	Enabled Admission Controllers	Release Notes
1.12.6	eks.2	​Initializers, NamespaceLifecycle, LimitRanger, ServiceAccount, DefaultStorageClass, ResourceQuota, DefaultTolerationSeconds, NodeRestriction, MutatingAdmissionWebhook, ValidatingAdmissionWebhook	New platform version to support custom DNS names in the Kubelet certificate and improve etcd performance. This fixes a bug that caused worker node Kubelet daemons to request a new certificate every few seconds.
1.12.6	eks.1	​Initializers, NamespaceLifecycle, LimitRanger, ServiceAccount, DefaultStorageClass, ResourceQuota, DefaultTolerationSeconds, NodeRestriction, MutatingAdmissionWebhook, ValidatingAdmissionWebhook	Initial release of Kubernetes 1.12 for Amazon EKS.

Kubernetes version 1.11

Kubernetes Version	Amazon EKS Platform Version	Enabled Admission Controllers	Release Notes
1.11.8	eks.3	​Initializers, NamespaceLifecycle, LimitRanger, ServiceAccount, DefaultStorageClass, ResourceQuota, DefaultTolerationSeconds, NodeRestriction, MutatingAdmissionWebhook, ValidatingAdmissionWebhook	New platform version to support custom DNS names in the Kubelet certificate and improve etcd performance.
1.11.8	eks.2	​Initializers, NamespaceLifecycle, LimitRanger, ServiceAccount, DefaultStorageClass, ResourceQuota, DefaultTolerationSeconds, NodeRestriction, MutatingAdmissionWebhook, ValidatingAdmissionWebhook	New platform version updating Amazon EKS Kubernetes 1.11 clusters to patch level 1.11.8 to address CVE-2019-1002100.
1.11.5	eks.1	​Initializers, NamespaceLifecycle, LimitRanger, ServiceAccount, DefaultStorageClass, ResourceQuota, DefaultTolerationSeconds, NodeRestriction, MutatingAdmissionWebhook, ValidatingAdmissionWebhook	Initial release of Kubernetes 1.11 for Amazon EKS.

Kubernetes version 1.10

Kubernetes Version	Amazon EKS Platform Version	Enabled Admission Controllers	Release Notes
1.10.13	eks.5	​Initializers, NamespaceLifecycle, LimitRanger, ServiceAccount, DefaultStorageClass, ResourceQuota, DefaultTolerationSeconds, NodeRestriction, MutatingAdmissionWebhook, ValidatingAdmissionWebhook	New platform version to support custom DNS names in the Kubelet certificate and improve etcd performance.
1.10.13	eks.4	​Initializers, NamespaceLifecycle, LimitRanger, ServiceAccount, DefaultStorageClass, ResourceQuota, DefaultTolerationSeconds, NodeRestriction, MutatingAdmissionWebhook, ValidatingAdmissionWebhook	New platform version updating Kubernetes to patch level 1.10.13 and a patch to address CVE-2019-1002100.
1.10.11	eks.3	​Initializers, NamespaceLifecycle, LimitRanger, ServiceAccount, DefaultStorageClass, ResourceQuota, DefaultTolerationSeconds, NodeRestriction, MutatingAdmissionWebhook, ValidatingAdmissionWebhook	New platform version updating Kubernetes to patch level 1.10.11 to address CVE-2018-1002105.
1.10.3	eks.2	​Initializers, NamespaceLifecycle, LimitRanger, ServiceAccount, DefaultStorageClass, ResourceQuota, DefaultTolerationSeconds, NodeRestriction, MutatingAdmissionWebhook, ValidatingAdmissionWebhook	Added support for Kubernetes aggregation layer. Added support for Kubernetes Horizontal Pod Autoscaler (HPA). Kubernetes Metrics Server 0.3.0 or greater is compatible with EKS platform version eks.2.
1.10.3	eks.1	​Initializers, NamespaceLifecycle, LimitRanger, ServiceAccount, DefaultStorageClass, ResourceQuota, DefaultTolerationSeconds, NodeRestriction	Initial launch of Amazon EKS.