Supported Kubernetes cluster versions

Each Anthos attached clusters release comes with Kubernetes version notes. These are similar to release notes but are specific to a Kubernetes version and may offer more technical detail.

Anthos attached clusters supports the following Kubernetes versions:

Kubernetes 1.27

1.27.0-gke.1

• Added the authorization.admin_groups field. This allows users to specify google groups as cluster-admins through the management plane.
• Added Binary Authorization support.
• Enabled gzip compression for fluent-bit (a log processor and forwarder) and gke-metrics-agent (a metrics collector). fluent-bit compresses log data before sending it to Cloud Logging, and gke-metrics-agent compresses metrics data before sending the data to Cloud Monitoring. This reduces network bandwidth and costs.

• Feature: Added proxy support for attaching AKS/EKS clusters. For details, see Connect to your EKS cluster and Connect to your AKS cluster.

• Security Fixes

  • Fixed CVE-2021-43565
  • Fixed CVE-2022-21698
  • Fixed CVE-2023-0464
  • Fixed CVE-2023-0465
  • Fixed CVE-2023-0466
  • Fixed CVE-2023-2454
  • Fixed CVE-2023-2455
  • Fixed CVE-2023-2650
  • Fixed CVE-2023-24539
  • Fixed CVE-2023-24540
  • Fixed CVE-2023-29400

Kubernetes 1.26

1.26.0-gke.3

• Security Fixes
  • Fixed CVE-2022-27664
  • Fixed CVE-2022-32149
  • Fixed CVE-2022-41723
  • Fixed CVE-2023-24534
  • Fixed CVE-2023-24536
  • Fixed CVE-2023-24537
  • Fixed CVE-2023-24538

1.26.0-gke.2

• Bug Fixes
  • Fixed an issue in which the logging agent consumed increasingly high amounts of memory.

1.26.0-gke.1

• Added support for Kubernetes 1.26.

• Feature: Enabled connecting to an Anthos attached cluster as a member of a Google group. For details, see Connect to your EKS cluster and Connect to your AKS cluster.

• Fixed a regression which breaks scraping from authenticated Kubelet port.

• Feature: Added day 2 operations for Anthos attached clusters in the Google Cloud console, allowing you to easily view, update, and detach EKS clusters. From the Google Cloud Console, you can also view, update, and detach AKS clusters.

• Feature: Enabled sending Kubernetes resource metadata to Google Cloud Platform, improving both the user interface and cluster metrics. For the metadata to be ingested properly, customers need to enable the Config Monitoring for Ops API. This API can be enabled either in the Google Cloud Console , or by manually enabling the opsconfigmonitoring.googleapis.com API in the gcloud CLI. Additionally, customers must follow the steps outlined in the Authorize Cloud Logging/Monitoring documentation to add the necessary IAM bindings.

Kubernetes 1.25

1.25.0-gke.5

• Security Fixes
  • Fixed CVE-2022-27664
  • Fixed CVE-2022-32149
  • Fixed CVE-2022-41723
  • Fixed CVE-2023-24534
  • Fixed CVE-2023-24536
  • Fixed CVE-2023-24537
  • Fixed CVE-2023-24538

1.25.0-gke.4

• Bug Fixes
  • Fixed an issue in which the logging agent consumed increasingly high amounts of memory.

1.25.0-gke.3

• Fixed a regression which breaks scraping from authenticated Kubelet port.

• Feature: Added day 2 operations for Anthos attached clusters in the Google Cloud console, allowing you to easily view, update, and detach EKS clusters. From the Google Cloud Console, you can also view, update, and detach AKS clusters.

• Feature: Enabled sending Kubernetes resource metadata to Google Cloud Platform, improving both the user interface and cluster metrics. For the metadata to be ingested properly, customers need to enable the Config Monitoring for Ops API. This API can be enabled either in the Google Cloud Console , or by manually enabling the opsconfigmonitoring.googleapis.com API in the gcloud CLI. Additionally, customers must follow the steps outlined in the Authorize Cloud Logging/Monitoring documentation to add the necessary IAM bindings.

1.25.0-gke.2

• Security Fixes
  • Fixed CVE-2021-46848
  • Fixed CVE-2022-42898

1.25.0-gke.1

• Added support for Kubernetes 1.25.

Kubernetes 1.24

1.24.0-gke.5

• Security Fixes
  • Fixed CVE-2022-27664
  • Fixed CVE-2022-32149
  • Fixed CVE-2022-41723
  • Fixed CVE-2023-24534
  • Fixed CVE-2023-24536
  • Fixed CVE-2023-24537
  • Fixed CVE-2023-24538

1.24.0-gke.4

• Bug Fixes
  • Fixed an issue in which the logging agent consumed increasingly high amounts of memory.

1.24.0-gke.3

• Fixed a regression which breaks scraping from authenticated Kubelet port.

• Feature: Added day 2 operations for Anthos attached clusters in the Google Cloud console, allowing you to easily view, update, and detach EKS clusters. From the Google Cloud Console, you can also view, update, and detach AKS clusters.

1.24.0-gke.2

• Security Fixes
  • Fixed CVE-2021-46848
  • Fixed CVE-2022-42898

1.24.0-gke.1

• Added support for Kubernetes 1.24.

Kubernetes 1.23

1.23.0-gke.3

• Security Fixes
  • Fixed CVE-2021-46848
  • Fixed CVE-2022-42898

1.23.0-gke.2

1.23.0-gke.1

• Added support for Kubernetes 1.23.

Kubernetes 1.22

1.22.0-gke.1

• Added support for Kubernetes 1.22.

Kubernetes 1.21

1.21.0-gke.1

• Added support for Kubernetes 1.21.