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Release Notes

April 1, 2025​

Notice of kr-central-1 region termination​

  • Due to the termination of the kr-central-1 region, this service is no longer available in that region. Going forward, you can continue to use the service reliably in the kr-central-2 region.

January 10, 2025​

  • Added functionality to configure security groups for node pools.
  • Improved UI for resource-based autoscaling configuration.
  • Added trail log events for resource-based autoscaling.
  • Enhanced node recovery functionality (renamed Recovery to Recreate).
  • Improved UI for pod scheduling configuration.
  • Added cluster version 1.29 and removed support for version 1.26.

New features​

  • Added functionality to issue private API server endpoint URLs.
  • Added functionality to set labels on nodes.
  • Added functionality to configure user scripts.

August 22, 2024​

New features​

  • Added functionality to issue private API server endpoint URLs.
  • Introduced a feature to configure node labels.
  • Enabled user script configuration for nodes.

July 3, 2024​

New features and changes​

  • Introduced scheduled scaling for node pools (expand/shrink based on set times).
  • Added resource events (Cluster, Nodepool, Node) to Cloud Trail.
  • Renamed "Auto Scaling Settings" to "Resource-Based Autoscaling Settings."
  • Renamed "Node Pool Scheduling Settings" to "Pod Scheduling Settings."
  • Added a scaling tab in the node pool details for managing autoscaling policies.

May 31, 2024​

New features​

  • Added support for CPU multithreading when creating node pools with Virtual Machines.
  • Introduced support for Kubernetes v1.28.

May 9, 2024​

New features​

CNI Plugin Selection​
  • Added support for Calico and Cilium CNI plugins.
  • Users can select the desired CNI plugin during cluster creation, optimizing network configurations for their service environment.
Network Bonding for Bare Metal Server Nodes​
  • Applied network bonding by default for Bare Metal Server node pools, enhancing bandwidth and availability.
  • Configured two interfaces per node with IPs matching the selected subnet during node pool creation.

March 19, 2024​

New features​

  • Enabled support for Kubernetes v1.27 in the kr-central-2 region.

March 18, 2024​

New features​

Kubernetes Version Update​
  • Added support for Kubernetes v1.27 in the kr-central-1 region.
  • Restricted new cluster creation with Kubernetes v1.25 (existing clusters remain operational).

Kubelet Information​

  • Supported kubelet versions 1.26 and 1.27.

January 31, 2024​

New features​

Node Image Selection​
  • Allowed users to select node images during node pool creation.
  • Displayed image details in the node pool and node details tabs.
Cluster Details Update​
  • Added "Cluster Creator" information in the cluster details tab.

December 6, 2023​

Image updates​

Worker Node Image​
  • Updated to Ubuntu 20.04:
    • kernel: 5.4.0-167-generic
    • containerd: 1.7.6
GPU Worker Node Image​
  • Updated GPU driver versions:
    • nvidia driver: 535.129.03
    • cuda: 12.2
Kubelet Information​
  • Supported kubelet versions 1.25 and 1.26.

October 16, 2023​

New features​

Bare Metal Server Node Support (kr-central-2)​
  • Added support for creating node pools with Bare Metal Server nodes.
    • Maximum of 5 nodes per cluster or pool.
    • Bare Metal Server node pools do not support autoscaling.
Multi-AZ Cluster Availability Enhancements (kr-central-2)​
  • Required at least one subnet per AZ for new Multi-AZ clusters.
Cluster Endpoint Update (kr-central-1)​
  • Updated the API server endpoint for new clusters to use port 443.

August 16, 2023​

New features​

Multi-AZ Enhancements (kr-central-2)​
  • Enabled high availability by running control planes across multiple AZs for Multi-AZ clusters.
Subnet Selection​
  • Allowed multiple subnet selections during cluster and node pool creation.
Kubernetes Version Updates​
  • Added support for Kubernetes v1.25 and v1.26.
  • Deprecated new cluster creation with Kubernetes v1.23 (existing clusters remain operational).
Kubernetes Engine Launch (kr-central-2)​
  • Officially launched Kubernetes Engine in the kr-central-2 region.
    • Clusters in kr-central-2 were free until August 31, 2023. Paid plans began on September 1, 2023.
Persistent Volume Support​
  • Enabled Multi-AZ clusters to use persistent volumes with Block Storage CSI Provisioner.

July 7, 2023​

New features​

Multi-AZ Support (kr-central-2)​
  • Supported Multi-AZ node pools for high availability in the kr-central-2 region.
Application Load Balancer Support​
  • Added support for creating Application Load Balancers for Kubernetes services.
  • Enabled SSL certificate registration and management via the Certification menu.

June 16, 2023​

New features​

New Region (kr-central-2)​
  • Launched Kubernetes Engine Beta in the kr-central-2 region, initially supporting only kr-central-2-a AZ.

June 1, 2023​

New features​

Network Load Balancer (NLB) Support​
  • Defaulted Kubernetes Load Balancer services to NLB, aligned with updates in Load Balancing services.

March 20, 2023​

New features​

Persistent Volume Support​
  • Enabled Persistent Volumes using CSI Provisioner with KakaoCloud Block Storage.

October 25, 2022​

New features​

GPU Node Support​
  • Added GPU nodes as an option during node pool setup.
Node Monitoring​
  • Introduced a monitoring tab to view node and pod resource usage trends.
Persistent Volume Support​
  • Enabled Persistent Volumes with File Storage using NFS Client Provisioner.

July 12, 2022​

New features and improvements​

  • Supported cluster and node updates.
  • Introduced public IP-based API server endpoints.
  • Enhanced node recovery and naming rules.