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Release Notes - 2025

The release notes timeline highlights new features, bug fixes, and improvements implemented in Hyperstack and AI Studio.

December 16, 2025​

Minor Release

Hyperstack Core v1.46.4​

What's New​

  • Object Storage: Hyperstack now offers fully S3-compatible Object Storage, available in the CANADA-1 region, with support for additional regions planned in upcoming releases.
    • UI and API Management: Create access keys, configure commonly used tools, and manage buckets using the Hyperstack Console or programmatically via API endpoints. See the Getting Started guide and API reference for details.

December 2, 2025​

Minor Release

Hyperstack Core v1.46.2​

Fixes & Improvements​

  • Improved Network Bootstrapping: Networking is now more reliable when deploying multiple VMs in a new environment, with the first VM handling setup to prevent conflicts.

December 2, 2025​

Minor Release

Hyperstack Core v1.46.1​

Fixes & Improvements​

  • Callback URL Validation: Callback URLs must now resolve to a public IP address. This is a security improvement that prevents use of internal or non-routable addresses.
  • API Key Naming: API key names no longer permit special characters to improve security.

November 18, 2025

Minor Release

AI Studio v1.7.1

What's New

  • Export Fine-Tuned Models: You can now export your fine-tuned models from Hyperstack AI Studio for external use. Learn more.

November 18, 2025

Feature Release

AI Studio v1.7.0

What's New

  • Import LoRA Adapters From Hugging Face: You can now import external LoRA adapter models from Hugging Face directly into AI Studio for use with supported base models. Imported adapters can be deployed and used in the Playground UI or via API for inference. Learn more about importing LoRA adapters.

November 18, 2025​

Minor Release

Hyperstack Core v1.46.0​

What's New​

Fixes & Improvements​

  • Hibernate Virtual Machine API Update: A new retain_ip parameter has been added to the Hibernate Virtual Machine API, allowing users to programmatically retain a public IP during hibernation.

October 23, 2025​

Minor Release

Hyperstack Core v1.45.0​

What's New​

  • Voucher Redemption: Users with voucher codes can now redeem Hyperstack vouchers via the UI to credit their organization’s account balance.

October 23, 2025​

Minor Release

Hyperstack Core v1.44.0​

What's New​

  • Batch Node Deletion API: A new Delete Multiple Nodes API has been added, enabling you to delete multiple nodes from a cluster in a single request.

October 21, 2025​

Minor Release

Hyperstack Core v1.43.0​

What's New​

  • Node Group Scaling Limits: You can now define the minimum and maximum limits for the number of worker nodes that the autoscaler (coming soon) can scale to within a Kubernetes node group, using the new Update Node Group API. These limits are set using the min_count and max_count fields, which are also returned by all APIs that include a node_group object.

Fixes & Improvements​

  • Improved Kubernetes Cluster Resilience: Master (control plane) nodes are now provisioned on distinct underlying hosts where available, reducing the risk that a single hardware failure affects all control plane nodes and improving overall cluster resilience.
  • Control Plane Stability for Autoscaler Compatibility: Control plane nodes are now labeled with cluster-autoscaler.kubernetes.io/scale-down-disabled: "true" to prevent the autoscaler (coming soon) from removing them. This ensures essential infrastructure remains intact and enhances cluster reliability.
  • Account Lockout Protection: User accounts are now temporarily locked after multiple consecutive failed login attempts, improving protection against unauthorized access.

October 7, 2025​

Minor Release

Hyperstack Core v1.42.1​

Fixes & Improvements​

  • Cluster Reconciliation Behavior: Cluster reconciliation now preserves custom containerd configurations, ensuring that any manual changes to containerd settings are retained during reconciliation operations.
  • Updated Device Path for Volume Attachments: The device field in API responses that include the volume_attachments object now return a persistent path (e.g., /dev/disk/by-id/virtio-...) instead of a transient kernel path (e.g., /dev/vda), improving reliability and scripting consistency.

September 30, 2025​

Minor Release

Hyperstack Core v1.42.0​

What's New​

  • Change Password via UI: Users can now update their account password directly in Hyperstack from the Security page, making password management more convenient and secure. Learn more.

September 23, 2025​

Minor Release

Hyperstack Core v1.41.2​

What's New​

  • Manual Cluster Reconciliation: You can now manually initiate reconciliation for a Kubernetes cluster. Learn more.

    • Reconcile Cluster API: This new endpoint allows you to programmatically trigger reconciliation for a cluster. View API Reference.

Fixes & Improvements​

  • Improved Resource Activity Sorting: The Resource Activity page now lists resources in chronological order based on their creation date.
  • Streamlined 2FA Setup: Two-factor authentication setup now requires only your password, with no need to enter an email address.
  • Platform Stability: Performance improvements and reliability enhancements across the platform.

September 18, 2025​

Feature Release

Hyperstack Core v1.41.0​

What's New​

  • New Kubernetes Versions Supported: Hyperstack now supports deploying Kubernetes clusters with the following versions: 1.27.8, 1.32.8, and 1.33.4. The desired version can be selected during the cluster deployment process. Each version is now associated with a compatible image that is automatically used during provisioning. Learn more.

    • List Cluster Versions API Update: The List Cluster Versions API has been significantly updated. It now returns an array of versions objects, each containing the Kubernetes version, the region where the version is supported, and metadata about the pre-configured image used with that version. Learn more.

  • Simplified Cluster Deployment: The image selection step has been removed from the Cluster deployment page in Hyperstack. Users now only select the Kubernetes version, and the platform automatically provisions the compatible image for the cluster. Learn more.

    • Create Cluster API Update: The Create Cluster API has been updated to remove the image_name field. Only the kubernetes_version is now required, as each version includes its corresponding image by default. Learn more.

Fixes & Improvements​

  • Volume Pagination: The Volumes page now supports pagination, improving navigation for users managing many volumes.
  • Volume Attachment Lock Indicator: Volumes attached to virtual machines now display a lock icon and a tooltip message when the attachment is protected. The protection status of a volume attachment is managed using the Volume Attachment APIs.

September 11, 2025

Minor Release

AI Studio v1.5.0

Fixes & Improvements

  • Dark Mode Enhancements: Improved dark mode readability and styling for a more accessible and visually consistent user experience.
  • Platform Reliability: Broad improvements across the platform to enhance performance, responsiveness, and overall stability.

September 4, 2025​

Feature Release

Hyperstack Core v1.40.0​

What's New​

  • Kubernetes Cluster Enhancements: Major upgrades to Kubernetes functionality, including support for multiple deployment modes, clusters with multiple worker node flavors via node groups, master node scaling and improved cluster APIs.

    • Deployment Modes: Choose between Default Deployment (includes a bastion host and public load balancer) and Standard Deployment (minimal setup with only master and worker nodes). Learn more.
    • Node Groups: Node groups can be used to assign different worker node flavors to different groups within a single cluster. Learn more.
      • Added Node Group APIs: New endpoints for creating, retrieving, and deleting node groups. Learn more.
    • Multiple Master Nodes & Scalability: All clusters are now provisioned with multiple master nodes by default to improve availability. Additionally, you can now scale the number of master nodes in a cluster. Learn more.

  • Virtual Machine Console Logs: Access VM console logs directly via the UI or API. UI Documentation | API Reference

  • Move Volumes Between Environments: Transfer volumes across environments within the same region via UI or API. UI Documentation | API Reference

  • Volume Attachment Protection: Prevent accidental volume detachment from VMs using new API options available both after volume attachment and during volume attachment.

Fixes & Improvements​

  • Volumes API Improvements: Volume API responses now include an array of attachments to reflect details of any associated VM attachment. Learn more.
  • Enhanced Create Cluster API: Now supports payload fields for deployment mode, multi-master configurations, and node groups. Learn more.
  • Updated Cluster Schema: Cluster API response objects now include node_groups and nodes objects containing details on node groups and individual nodes within a cluster. Learn more.
  • Region Preselection for Environment Creation: When creating a new environment during VM deployment, the region field is auto-filled based on your current selection to speed up setup and reduce errors.

August 28, 2025​

Minor Release

Hyperstack Core v1.39.1​

Fixes & Improvements​

  • Backend Infrastructure Enhancements: Internal system improvements to support platform operations and integrations. No user-facing changes.

AI Studio v1.3.0

Fixes & Improvements

  • Platform Reliability: Improved platform reliability through smoother authentication flows, more consistent session handling, and infrastructure enhancements that strengthen performance and maintainability.

August 26, 2025​

Feature Release

Hyperstack Core v1.39.0​

What's New​

  • Two-Factor Authentication (2FA): You can now add an extra layer of protection to your Hyperstack account by enabling 2FA. After activation, signing in requires both your password and a time-based verification code from an authenticator app. Learn more.

Fixes & Improvements​

  • Platform Stability: Performance improvements and reliability enhancements across the platform.

August 19, 2025​

Feature Release

Hyperstack Core v1.38.0​

What's New​

  • Multiple Organization Support: Users can now belong to and manage multiple organizations, each with its own resources, billing, and user permissions. This makes it easy to separate projects and switch between organizations as needed. Learn more.

Fixes & Improvements​

  • Platform Stability: Performance improvements and reliability enhancements across the platform.

August 14, 2025​

Minor Release

Hyperstack Core v1.36.4​

Fixes & Improvements​

  • Backend Infrastructure Enhancements: Internal system improvements to support platform operations and integrations. No user-facing changes.

August 12, 2025​

Minor Release

Hyperstack Core v1.36.3​

What’s New​

  • RTX 6000 PRO Blackwell Flavors Now Available for Reservation: RTX-PRO6000-SE flavors featuring the NVIDIA RTX 6000 PRO Blackwell Server Edition GPU are now visible in the Hyperstack UI and open for reservation. Click here to reserve To learn more about the flavor hardware configurations and flavor features, click here.

August 8, 2025

Feature Release

AI Studio v1.1.2

What's New

  • Added OpenAI’s gpt-oss-120b Model: This release introduces OpenAI’s latest and most powerful open-source model, openai-gpt-oss-120b, to Hyperstack AI Studio. This model is currently available for inference only. Learn more.

August 6, 2025

Minor Release

Hyperstack Core v1.36.2

Fixes & Improvements

  • Unified Login with AI Studio: Logging into the Hyperstack platform now automatically signs users into AI Studio. Logging out of Hyperstack also ends the AI Studio session, ensuring secure and consistent authentication across the platform.

AI Studio v1.1.1

Fixes & Improvements

  • Integrated Session Management with Hyperstack: Signing into AI Studio now also signs users into the Hyperstack platform. Logging out of AI Studio ends the Hyperstack session, streamlining navigation between tools.
  • Stability and Authentication Enhancements: Improved system reliability, fixed issues related to UI rendering, cost estimation accuracy, and session sign-out behavior.

July 30, 2025​

Minor Release

Hyperstack Core v1.36.1​

Fixes & Improvements​

  • Platform Stability: Performance improvements and reliability enhancements across the platform.

July 29, 2025​

Minor Release

Hyperstack Core v1.36.0​

What's New

  • AI Studio Usage Reports Integration: Hyperstack’s Billing section now displays detailed usage reports for AI Studio services—including fine-tuning, evaluation, data synthesis, and serverless inference. Learn more.

Fixes & Improvements​

  • Snapshot Deletion Fix: Resolved a bug where snapshots referencing an invalid image could not be deleted.
  • Platform Stability: Performance improvements and reliability enhancements across the platform.

AI Studio v1.1.0

What's New

  • Usage Reports: Added detailed usage reports for AI Studio services (fine-tuning, evaluation, data synthesis, and serverless inference). These reports are accessible in the Hyperstack Billing section. Learn more.

Fixes & Improvements

  • UI & API Enhancements: Improved visualization of AI Studio services on the Resource Activity page, fixed search in Model Evaluation usage reports, and made several minor API refinements.

July 24, 2025​

Minor Release

Hyperstack Core v1.35.1​

Fixes & Improvements​

  • Badge & Banner Updates: Updated badges and banners across platform pages and emails to ensure consistent branding alignment with our strategic partners.

July 22, 2025​

Minor Release

Hyperstack Core v1.35.0​

Fixes & Improvements​

  • Billing Forms Validation: Improved field validation to ensure accurate and standardized billing information.
  • Firewall Rules Bug Fix: Resolved an issue that prevented firewall rules from being created during VM deployment.
  • Platform Stability: Performance improvements and reliability enhancements across the platform.

July 17, 2025​

Minor Release

Hyperstack Core v1.34.1​

Fixes & Improvements​

  • Platform Stability: Performance improvements and reliability enhancements across the platform.

July 16, 2025

Minor Release

AI Studio v1.0.1

Fixes & Improvements

  • UI, Access, & Security Fixes: This release includes broad improvements across the interface, login flows, and session handling, along with security updates aligned with best practices.

July 8, 2025

Feature Release

Hyperstack Core v1.33.0

What's New

  • AI Studio Now Available in Hyperstack : Hyperstack now includes full access to AI Studio, making it easy to fine-tune, evaluate, and deploy custom models, manage data, run evaluations, and more. All features are now integrated directly into the platform.

Fixes & Improvements

  • Platform Stability: Performance improvements and reliability enhancements across the platform.

AI Studio v1.0.0

What's New

  • Hyperstack AI Studio Full Integration: AI Studio is now integrated into the Hyperstack platform, offering a unified interface for model training, inference, evaluation, and data workflows.
    • New AI Studio UI Sections and Features:
      • My Models: Fine-tune models, monitor training runs, evaluate fine-tuned models, and manage deployments.
      • Data: Upload, manage, and synthesize datasets used for training and evaluation.
      • Model Aliases: Create aliases to simplify model deployment and versioning.
      • Model Ranking: Compare model performance across benchmarks to support base model selection.
      • Playground: Interactively run inference or test model outputs via API.
    • AI Studio Billing: Provides usage and cost reports for all AI Studio services within Hyperstack . Learn more.
    • OpenAI-Compatible API: AI Studio APIs follow the OpenAI format, enabling seamless integration with existing tools and SDKs. Get started with the API.

Fixes & Improvements

  • Job Execution Stability & UI Improvements: Increased reliability of AI Studio job execution and refined UI for a smoother user experience.

June 24, 2025​

Minor Release

Hyperstack Core v1.32.1​

Fixes & Improvements​

  • OTP Screen Submission: The "Login" button now prevents multiple submissions and shows visual feedback during login.
  • VM Restore State: Fixed a rare issue where virtual machines could get stuck in the RESTORING state.
  • Platform Stability: Performance improvements and reliability enhancements across the platform.

June 10, 2025​

Minor Release

Hyperstack Core v1.31.6​

Fixes & Improvements​

  • VM Callback URLs: Fixed an issue affecting callback URL functionality for virtual machines.
  • Welcome Email Layout: Improved appearance and readability on mobile devices.
  • Platform Stability: Performance improvements and reliability enhancements across the platform.

June 3, 2025​

Minor Release

Hyperstack Core v1.31.5​

Fixes & Improvements​

  • Resource Name Validation: Fixed issues with key pair name and volume name checks during creation.
  • Platform Stability: Performance improvements and reliability enhancements across the platform.

May 27, 2025​

Feature Release

Hyperstack Core v1.31.3​

What's New​

  • SSO Support for GitHub and Microsoft: You can now log in to Hyperstack using your GitHub or Microsoft account. Learn more.

May 21, 2025​

Feature Release

Hyperstack Core v1.31.2​

What's New​

  • Volumes Now Available in US-1: You can now create and attach volumes in the US-1 region, enabling persistent storage for virtual machines deployed in this region.

Fixes & Improvements​

  • Spot Flavor Warnings: Flavor cards now show a warning icon for spot flavors during VM and Cluster deployment, indicating that VMs deployed with these flavors may be interrupted.
  • Improved Docs Links: Learn more links on Flavor cards during VM and Cluster deployment now point directly to documentation on flavor features and limitations.

May 13, 2025​

Minor Release

Hyperstack Core v1.31.1​

Fixes & Improvements​

  • Consistent Usage Reporting: Fixed an issue where Resource Activity stats and total usage reports didn't always match. They now provide a consistent and accurate view of billing data.
  • Invoicing Reliability: Fixed issues affecting tax calculation and invoice delivery, ensuring accurate and timely billing.

May 7, 2025​

Feature Release

Hyperstack Core v1.31.0​

What's New​

  • Kubernetes Cluster Management via UI: You can now deploy and manage Kubernetes clusters directly from the Hyperstack Console. For full documentation and how-to guides, click here.

    New UI capabilities include:

    • Kubernetes Tab: Added the Kubernetes Clusters page in the Hyperstack Console. This page displays information about your clusters at a glance and includes a Deploy a New Cluster button for launching new clusters.
    • Cluster Deployment: A step-by-step wizard makes it quick and easy to create clusters. Learn more.
    • Cluster Overview Page: View key cluster details such as status, configuration, and resource usage. Learn more.
    • Cluster Nodes Management: Inspect all nodes in your cluster, view their roles and status, and scale the number of worker nodes as needed. Learn more.
    • Access Kubeconfig: Retrieve the Kubeconfig YAML file for your clusters within the UI. Learn more.
    • Cluster Events Log: Track all cluster activity with detailed event logs, including timestamps, event types, and descriptions. Learn more.

  • Master Flavors API: Introduced an API to retrieve the list of compatible CPU-only flavors for master nodes during Kubernetes cluster deployment. Learn more.

Fixes & Improvements​

  • Improved Cluster Stability: Cluster and node status handling has been refined for more stable and consistent creation, scaling, and deletion.
  • Improved Cluster Billing: Cluster billing information now better reflects actual usage, including proper handling of contract-based pricing and zero-cost master nodes.
  • New Documentation Domain: All documentation links now point to https://docs.hyperstack.cloud/docs,replacing the previous domain.
  • Flavor Features & Restrictions Icons: During VM and cluster deployment, flavors now display icons indicating features and restrictions such as network optimization, snapshots, and hibernation. Learn more.

May 5, 2025

Feature Release

AI Studio (Previously Gen AI Platform) Beta

What's New

  • Gen AI Platform (Beta): Released the Hyperstack Gen AI Platform, designed for AI model development and deployment. Users can upload and manage training datasets, fine-tune open-source models, deploy them for inference, and test results via UI or API.

platform integration and renaming

As of July 8, 2025 the Gen AI Platform has been renamed AI Studio and integrated into Hyperstack.


April 24, 2025​

Feature Release

Hyperstack Core v1.29.4​

What's New​

  • Spot Virtual Machines: Spot VMs are now available, offering a cost-effective way to run GPU-based workloads by leveraging Hyperstack 's surplus compute capacity. To learn more about how they work, their ideal use cases, and limitations, click here.

April 4, 2025​

Minor Release

Hyperstack Core v1.29.3​

Fixes & Improvements​

  • VAT Registration Handling: Stripe checkout now correctly requires or omits VAT registration based on the selected country.

April 1, 2025​

Minor Release

Hyperstack Core v1.29.2​

Fixes & Improvements​

  • Public IP Release Bug: Resolved an issue where public IP addresses were not properly released during VM deletion.

March 28, 2025​

Minor Release

Hyperstack Core v1.29.1​

Fixes & Improvements​

  • VM Deletion Stability: Fixed an issue where deleting VMs in certain states could affect overall system stability.

March 25, 2025​

Feature Release

Hyperstack Core v1.28.0​

What's New​

  • Stripe Payment Update: Starting April 1, taxes will be collected on payments for Hyperstack accounts with billing addresses in the UK and Canada. Learn more.
    • Detailed and Compliant Receipts: Receipts now include complete payment and tax information. They are emailed and available for download in the Billing section within Hyperstack .

Fixes & Improvements​

  • Provisioning Profile Save Bug: Fixed an issue where some provisioning profile settings were not saved during VM deployment.
  • Platform Stability: Performance improvements and reliability enhancements across the platform.

March 18, 2025​

Feature Release

Hyperstack Core v1.29.0​

What's New​

  • Advanced Kubernetes API Features: Introduced Hyperstack Kubernetes APIs for creating, managing, and scaling Kubernetes clusters. To learn more and access deployment, management, and scaling guides, click here.

    • New APIs for Cluster Scaling:
      • Retrieve Cluster Nodes: Retrieves detailed information about the nodes in a specified Kubernetes cluster.
      • Create Cluster Nodes: Adds one or more nodes to an existing Kubernetes cluster.
      • Delete Cluster Node: Removes a node from a specified Kubernetes cluster.

    For detailed API reference, click here.

Fixes & Improvements​

  • Login Case Sensitivity: Fixed a bug where email addresses were treated as case-sensitive during login.
  • Cluster Management Stability: Improved stability and resolved issues with cluster and node creation and deletion.

March 11, 2025​

Feature Release

Hyperstack Core v1.27.1​

What's New​

  • GenAI Images: Introduced GenAI images, including the new DeepSeek R1 image, which allows you to deploy VMs with the DeepSeek R1 model pre-installed.

March 4, 2025​

Feature Release

Hyperstack Core v1.27.0​

What's New​

  • Region Sustainability: Added a green leaf icon green region to label regions that run on 100% sustainable energy.
    • Environments created in these regions will also display this label.
  • Documentation Update: Updated links for VM features and restrictions to provide clearer information on when Snapshot or Hibernation VM actions are unavailable.

Fixes & Improvements​

  • Improved Resource Reliability: Enhanced the reliability of VMs, Snapshots, and Volumes by resolving rare cases where they could become stuck in CREATING or DELETING states.

February 20, 2025​

Minor Release

Hyperstack Core v1.26.1​

Fixes & Improvements​

  • Public IP Assignment: Fixed an issue that intermittently caused public IP assignment to fail during virtual machine creation.

February 19, 2025​

Feature Release

Hyperstack Core v1.26.0​

What's New​

  • Updated Registration and Login UI: The account registration and login pages have been redesigned, including improvements to username and password recovery, as well as a new welcome page.
    • Dark Mode Support: The login pages now support dark mode in addition to the default light mode.

January 29, 2025​

Feature Release

Hyperstack Core v1.25.3​

What's New​

  • Added New Region: Launch of US-1 region with SRI-OV enabled NVIDIA H100 GPUs.

January 16, 2025​

Feature Release

Hyperstack Core v1.25.0​

What's New​

  • RDP UI Control: RDP toggle for Windows Images added.

Fixes & Improvements​

  • UI and API Improvements for platform stability.

January 8, 2025​

Feature Release

Hyperstack Core v1.24.0​

What's New​

  • Port Randomization Control: Users can now enable or disable port randomization when deploying a VM with the Infrahub API.

Fixes & Improvements​

  • UI and Performance Improvements Implemented numerous UI enhancements and performance improvements.

Older Release Notes:​


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