This page documents production updates to Cluster Toolkit. Check this page for announcements about new or updated features, bug fixes, known issues, and deprecated functionality.
You can see the latest product updates for all of Google Cloud on the Google Cloud page, browse and filter all release notes in the Google Cloud console, or programmatically access release notes in BigQuery.
October 10, 2025
Cluster Toolkit release version v1.68.0 is available. This release
introduces the option to download the NVIDIA Collective Communications Library
(NCCL) software packages libnccl2 and libnccl-dev for A3U and A4H machine
types, as well as other minor changes. For more information about this release,
see the Release Announcement on
GitHub.
This release supports the generally available, open-source IBM Spectrum Symphony HostFactory connectors for Google Compute Engine and Google Kubernetes Engine (GKE), which can be deployed through Cluster Toolkit to extend your on-premises cluster or run entirely within Google Cloud. For more information, see Run IBM Spectrum Symphony workloads.
September 19, 2025
Cluster Toolkit release version v1.67.0 is available. This release introduces additional support for aarch64-based architecture, as well as other minor changes. For more information about this release, see the Release Announcement on GitHub.
September 15, 2025
Cluster Toolkit release version v1.66.0 is available. This release enables Cloud Storage FUSE for H4D machine types and sets the default cluster availability to zonal, as well as other minor changes. For more information about this release, see the Release Announcement on GitHub.
September 09, 2025
Cluster Toolkit version v1.65.0 is available. This release includes expanded support for Managed Lustre on A4X instances and an improved GPU network wait solution for A-family machine types. This version also deprecates the use of Debian-based blueprints for A3 Mega GPUs. For a full list of changes, please refer to the release announcement on GitHub.
September 01, 2025
Cluster Toolkit version v1.64.0 is available. This release introduces a GKE Managed Lustre integration, allowing for high-performance, scalable storage for your GKE clusters. The storage for A3 Ultra machine types now uses basic SSD for improved performance. Additionally, this version includes improvements to allow for alternative services for private service access. For more details on these changes and other version updates, see the release announcement on GitHub.
August 26, 2025
Cluster Toolkit version v1.63.0 is available. This release upgrades Slurm image versions to the 6-11 iteration, such as
slurm-gcp-6-11-hpc-rocky-linux-8. This version transitions the Dynamic
Workload Scheduler (DWS) Flex-start to regional managed instance
groups (MIGs). This version also includes breaking changes, such as updating the
file storage for A3 Ultra machine types to basic HDD. For a comprehensive list
of all new features, improvements, and bug fixes, please see the release
announcement on
GitHub.
August 14, 2025
Cluster Toolkit version v1.62.0 is available. This release adds new blueprints for A4X instances and introduces a community scheduler module for Slinky (Slurm on Kubernetes). For more details, see the Release announcement on GitHub.
August 04, 2025
Cluster Toolkit version v1.61.0 is available. This release adds a namespace for GKE modules and optimizes Cloud Storage FUSE configurations for A3 Ultra and A4 blueprints. For more details, see the Release announcement on GitHub.
July 22, 2025
Cluster Toolkit version v1.59.0 is available. This release adds a configurable number of IP addresses per NAT for A-family blueprints and fixes an issue with additional disks for login nodes. For more details, see the Release announcement on GitHub.
July 15, 2025
Cluster Toolkit version v1.58.0 is available. This release adds a new blueprint for deploying GKE clusters with H4D instances and deprecates the blueprints for deploying Parallelstore. For more details, see the Release announcement on GitHub.
June 30, 2025
Cluster Toolkit version v1.57.0 is available. This release integrates Cluster Health Scripts (CHS) with GKE blueprints for A3 Mega, A3 Ultra, and A4 instances. For more details, see the Release announcement on GitHub.
June 23, 2025
Cluster Toolkit version v1.56.0 is available. This release includes improvements to SlurmGCP Resume functionality and several bug fixes. For more details, see the Release announcement on GitHub.
June 16, 2025
Cluster Toolkit version v1.55.0 is available. This release adds a new blueprint for a high-throughput AlphaFold 3 execution environment and aligns Cloud Storage FUSE configurations with best practices. For more details, see the Release announcement on GitHub.
June 10, 2025
Cluster Toolkit version v1.54.0 is available. This release adds Managed Lustre support for non-default ports in GKE and implements a network blocking script for A3 High instances. For more details, see the Release announcement on GitHub.
June 05, 2025
Cluster Toolkit version v1.53.0 is available. This release standardizes the A3 Mega Slurm solution on Ubuntu and adds a new GKE blueprint for A4X instances. For more details, see the Release announcement on GitHub.
May 22, 2025
Cluster Toolkit version v1.52.0 is available. This release improves CloudSQL support with database flags and query insights, and includes several bug fixes. For more details, see the Release announcement on GitHub.
May 13, 2025
Cluster Toolkit version v1.51.0 is available. This release adds GPU health-check epilogs for A3 High and A3 Mega Slurm blueprints and includes a new GKE TPU v6e example. For more details, see the Release announcement on GitHub.
May 05, 2025
Cluster Toolkit version v1.50.0 is available. This release introduces new blueprints for Managed Lustre attached to VMs and Slurm clusters. For more details, see the Release announcement on GitHub.
April 24, 2025
Cluster Toolkit version v1.49.0 is available. This release adds TPU support to the GKE nodepool module and introduces support for Managed Lustre. For more details, see the Release announcement on GitHub.
April 01, 2025
Cluster Toolkit version v1.48.0 is available. This release updates the GKE nodepool module to support multiple nodepools and adds automatic GPU health checks for Slurm. For more details, see the Release announcement on GitHub.
February 27, 2025
Cluster Toolkit version v1.47.0 is available. This release adds support for the A4 machine family in GKE and Slurm blueprints and introduces Dynamic Workload Scheduler Flex support for GKE. For more details, see the Release announcement on GitHub.
February 07, 2025
Cluster Toolkit version v1.46.0 is available. This release makes Kueue the officially supported workload scheduler for A3U and adds new blueprints for A3U, H4D VMs, and Slurm. For more details, see the Release announcement on GitHub.
January 15, 2025
Cluster Toolkit version v1.45.0 is available. This release updates A3 Ultra GKE blueprints to use newer versions of Kueue and Jobset, and adds support for cluster deletion protection. For more details, see the Release announcement on GitHub.
For information about previous releases of Cluster Toolkit, see the Announcements page on GitHub.