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Release Notes

October 12, 2026​

Added​

  • Introduced the m1ix general-purpose instance type and the c1ix compute-optimized instance type.

July 24, 2026​

Improvements​

  • You can now change the CPU multithreading setting when changing an instance type.

June 19, 2026​

Improvements​

  • Added a notice to the console to clearly indicate that billing continues while an instance is stopped.

2026.05.28​

Improvements​

  • You can now check image status on the custom image screen, and bulk deletion of images is supported.

2026.03.19​

Improvements​

  • Launch credit is now supported for the t1i burstable instance type. For more information about burstable instances, see Burstable instances.

2026.03.13​

Changes​

  • Virtual Machine and GPU services have been integrated.

2026.03.13​

  • Integrated existing GPU service into Virtual Machine service.

2026.03.05​

Deleted​

  • The vt1a instance type has been removed because service for that instance type has ended.

2026.01.13​

Changes​

  • Virtual Machine and GPU services have been integrated into one service.

2026.01.13​

Added​

  • Snapshot schedules have been improved to support multiple scheduling policies per volume.

September 15, 2025​

Added​

  • Added support for the m3az instance family in the kr-central-2-b availability zone.

July 22, 2025​

Improved​

  • Improved the process so that when creating a custom image, the minimum volume size of the image is set by referencing the root volume size of the instance used for image creation.

April 18, 2025​

Changed​

  • Changed the maximum Block Storage size from 5TB to 16TB.

April 14, 2025​

Documentation update​

  • Updated the Virtual Machine Troubleshooting Guide.

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 23, 2025​

New document added​

  • Added a troubleshooting guide for issues encountered when installing WSL2 on KakaoCloud Windows instances.
    WSL version 2 requires nested virtualization, which involves direct access to hardware. Since KakaoCloud’s Virtual Machine environment does not currently support direct hardware access, WSL 2 is not supported.
    For more details, refer to the Issues installing WSL2 on Windows instance document.

January 17, 2025​

Document added​

  • Added the Appendix. Configure real-time VM Evacuation alerts in Alert Center document, which provides step-by-step instructions for setting up real-time alerts for VM evacuation start and completion events using KakaoCloud Alert Center. Configure alert policies and notification channels to quickly detect and respond effectively to VM evacuation events during hypervisor maintenance or downtime.

December 24, 2024​

Document added​

  • Added a tutorial document explaining how to use WSL (Windows Subsystem for Linux) on Windows instances. WSL (Windows Subsystem for Linux) allows developers to easily use a Linux environment on Windows computers or Windows-based cloud instances. With WSL, you can install Linux distributions such as Ubuntu, OpenSUSE, Kali, Debian, and Arch Linux, and run Linux applications, utilities, and Bash command-line tools. For details, see Use WSL (Windows Subsystem for Linux) on a Windows instance.

2024.12.24​

Document added​

  • Added instructions for restoring data by using snapshots to the Create and manage snapshots/schedules document. This method is useful when SSH or RDP access is unavailable because an instance cannot boot or a service is not operating normally due to incorrect instance settings. For details, see Restore data by using snapshot.

August 27, 2024​

New features​

  • Added a configuration option to delete associated volumes when deleting an instance.

August 13, 2024​

New features and changes​

New features​
  • Added new images for Virtual Machine and GPU services to provide the latest kernel versions. The new images are as follows:
    • Ubuntu 24.04 (Kernel 6.8.0-39)
    • Ubuntu 22.04 (Kernel 5.15.0-117)
    • Ubuntu 20.04 (Kernel 5.4.0-190)
Changes​
  • Removed older kernel versions of the same images to align with the latest kernel versions. Existing instances can continue to use the old images. Removed images are as follows:
    • Ubuntu 22.04 (Kernel 5.15.0-100)
    • Ubuntu 20.04 (Kernel 5.4.0-173)

July 24, 2024​

New features​

  • Added new images to address DNS query issues in some operating system images and to provide the latest versions. The new images are as follows:
    • CentOS Stream 9
    • Rocky Linux 9.4
    • Rocky Linux 8.10
    • AlmaLinux 9.4
    • AlmaLinux 8.10

Changes​

  • Removed images that had DNS issues or reached EOL (end-of-life). Existing instances using these images are unaffected. Removed images are as follows:
    • AlmaLinux 9 - 5.14.0-284
    • Rocky Linux 9 - 5.14.0-284
    • Rocky Linux 8 - 4.18.0-477
    • CentOS Stream 8 - 4.18.0-516

January 25, 2024​

New features​

  • Introduced t1i, a burstable instance type supporting standard burst mode. Users can exceed the baseline CPU utilization using remaining instance credits.

December 4, 2023​

New features​

  • The m3az general-purpose instance family is now available in the kr-central-2-b availability zone (AZ) in addition to kr-central-2-a.

November 24, 2023​

New features​

  • The m3az general-purpose instance family is now available in the kr-central-2-a AZ. Service in the kr-central-2-b AZ will follow soon.

November 19, 2023​

Changes​

  • Added kernel version details for Linux/Unix operating systems and edition names for Windows operating systems in the OS name display.
  • Instances created with deprecated images remain operational, but creating new instances with these images is no longer supported.

September 25, 2023​

Changes​

  • Discontinued the r1i, m1i, m2a.baremetal instance families, and certain p2i instances (effective September 25, 2023, 10:00 AM).
    Replacement instance options:
    • r1i → r2a
    • m1i → m2a
    • m2a.baremetal → r2a.baremetal
    • p2i.8xlarge, p2i.16xlarge, p2i.32xlarge → p2i.6xlarge, p2i.12xlarge, p2i.24xlarge

2023.09.22​

Added​

  • Added vt1a, a new instance type, in the kr-central-2 region.

2023.09.12​

Added​

  • Opened the t1i family, a new general-purpose instance type, in the kr-central-2 region.
  • Added the c2a family, a new instance type, in the kr-central-2 region. You can now use compute-optimized instance types in the kr-central-2 region.

2023.06.01​

Changes​

  • Integrated the Ubuntu 20.04 (NPU) image into the Ubuntu 20.04 image with kernel 5.15 applied.
  • Added the Ubuntu 22.04 image.

2023.05.31​

Improvements and additions​

Virtual Machine / GPU menu separation​

  • Instances with accelerators (GPU, NPU, Video Transcoding) are provided as a specialized service.

Flavor / Property definition​

  • Provides standard instance families and types optimized for hardware specifications.
  • You can check instance performance through flavor properties.

Image / Property improvement​

  • Improved the foundation of the image service by reorganizing image properties.

BCS console UI improvement​

  • Improved conditional search so that users can find various instances more easily and quickly.
  • Improved the UI so that security groups can be found and configured more easily.

2023.03.13​

Additions and improvements​

  • Added the gn1i group instance type to GPU.
  • Improved instance type selection so users can search by detailed instance specifications such as vCPU and RAM.

2023.01.16​

Improvements and additions​

Instance hostname policy change​

  • Existing instance hostnames are maintained, and newly created instances are automatically assigned hostnames in private IP format. Example: host-100-100-17-22

Duplicate instance names allowed​

  • Duplicate instance names are now allowed due to the hostname policy change.

Allow 63-character instance name for Windows image​

  • Standardized the instance name length so names that were previously limited to 15 characters can now be created with 4 to 63 characters.

Allow special characters in instance name​

  • Changed the naming rule to allow _.

Show instance ID in instance name list​

  • Improved lists to show both instance name and instance ID (UUID).

Image creation improvement​

  • Improved image creation so it can run when the instance is in the stopped state.
  • For data consistency, we recommend running image creation when the instance is in the stopped state.

Image​

Windows 2022 OS image added​

  • Patch-updated the existing Windows 2019 OS image.

2022.12.01​

Improvements and additions​

Create instance page improvement​

  • Changed the Create instance page from a four-step page flow to a single page.
  • You can select and configure specifications and create an instance on a single page.
  • You can check selected and configured specifications through Summary in the upper-right corner.

Terminate feature added and function buttons reorganized​

  • Changed and separated the existing shelve action into stop and shelve.
  • Changed instance type modification so it can only be run when the instance is stopped.
  • Added tooltips that show why function buttons are disabled when a function or command is restricted.
  • For A1 group instances, billing continues even when Stop is run, and billing stops only when Shelve is run.
  • GPU group instances are billed from creation until deletion regardless of the Stop or Shelve action.

Instance lifecycle update​

  • Included all instance function execution cases and instance status values.
  • Added descriptions for each instance function, command, and status value in the lifecycle.

2022.08.08​

Added​

Custom image sharing added​

  • Added a feature to share custom images you created with other projects you belong to.
  • You can specify projects to share or unshare the image.

OS image added​

  • Added OS images available in VM, including Rocky Linux 8, Alma Linux 9, and CentOS Stream 8.

2022.08.25​

Added​

  • Updated the Public DNS feature.

2021.12.30​

Added​

  • Improved instance status control actions and updated convenience features for instance lists and functions.

2021.11.26​

Added​

  • Added various instance types and updated features such as image creation and public IP association/disassociation.

2021.09.29​

Added​

  • Updated instance status control and user script features.

2021.08.31​

Added​

  • Updated snapshot features for backing up and managing important data, volume management, and other convenience features.