Building on the success of TrueNAS 25.04 “Fangtooth”, we’re proud to release TrueNAS 25.10 “Goldeye” to deliver a powerful and user-friendly experience, cutting-edge features for enhanced performance, and simplified operations.
As always, we’d like to thank the thousands of members of the TrueNAS community for their assistance in testing the early releases, and providing valuable feedback and bug reports for our Engineering teams to address. Read on to find out more about what TrueNAS 25.10 can do for you and your organization.
TrueNAS 25.10 breaks free from the limitations of traditional storage protocols with NVMe over Fabric (NVMe-oF) support. NVMe-oF enables direct, high-speed access to data stored on remote arrays, effectively letting you treat storage on your TrueNAS 25.10 system as if it was a locally attached NVMe device. By removing the protocol overhead inherent in older block protocols like iSCSI and Fibre Channel, you can unlock unprecedented levels of I/O performance and significantly reduce latency.
When feeding demanding, compute-intensive workloads such as AI training and inference, NVMe-oF provides a significant advantage over other protocols, allowing GPUs and other accelerators to ingest information at speeds that keep pace with their processing capabilities. This dramatically reduces data transfer bottlenecks, leading to faster model training, more efficient data analysis, and quicker inference. Beyond AI/ML, NVMe-oF also significantly benefits high-performance transactional databases, virtualization and virtual desktop infrastructure (VDI), and other applications where every millisecond of latency reduction translates to improved user experience and operational efficiency.
TrueNAS 25.10 offers two available NVMe-oF deployment options. For broad compatibility and ease of implementation, NVMe/TCP leverages standard Ethernet networks, making it accessible for many organizations without requiring specialized hardware. This option provides a significant performance boost over traditional block protocols while utilizing existing network infrastructure.
For applications demanding the absolute highest levels of performance and the lowest possible latency, TrueNAS Enterprise 25.10 offers NVMe/RDMA (Remote Direct Memory Access) as the preferred choice. RDMA bypasses the CPU for data transfers, enabling direct memory-to-memory communication between the server and storage array, which results in extreme performance and microsecond-level latency for the most critical and performance-sensitive workloads. Real-world testing with a TrueNAS system delivered over 75 GB/s of read bandwidth from a single appliance.
TrueNAS 25.10 integrates the latest fixes available in the OpenZFS filesystem, with a suite of substantial enhancements crucial for optimizing data management and system performance. These improvements address various aspects from storage allocation and data integrity to memory management and system monitoring. Technical users are welcome to read some of the additional details in the earlier 25.10-RC1 blog or the TrueNAS 25.10 Release Notes.
A key area of refinement lies in ZFS storage pool allocation. The updated algorithms now facilitate more efficient and quicker data placement on individual disks within the storage pools. This not only accelerates overall write operations, but helps improve performance consistency especially under heavier workloads. By optimizing how the storage pool allocator distributes writes, TrueNAS 25.10 users will experience more consistent performance and reduced latency, which is vital for applications requiring high I/O throughput.
Existing TrueNAS users are already enjoying the benefits of our adaptive, transparent data reduction methods through compression and OpenZFS block cloning. TrueNAS 25.10 extends both the reach and reporting capabilities of data reduction. Enhancements to the block cloning algorithm ensure that this highly efficient data reduction method is used in more file and block copy scenarios, while the updated Adaptive Replacement Cache (ARC) summary now shows the effective uncompressed size of data resident in cache, better representing the true size of your active data set and the advantage of TrueNAS space efficiency features.
TrueNAS 25.10 adds support for new hardware functionality, ready for integration into the latest TrueNAS Enterprise appliances.
Both all-flash and HDD based systems will see increases in the total raw capacity supported, with our high-performance F-series able to support 20PB of NVMe flash, and the TrueNAS M-series extending to 40PB of deep archive capabilities.
Big systems require big bandwidth, and TrueNAS 25.10 introduces support for the “Terabit Ethernet” family of adapters, with 400Gbps Ethernet interfaces ensuring that your data gets where it needs to go in a hurry, regardless of the protocol being used.
If you’re a current Enterprise customer, or would like more information about using the latest appliances and features that TrueNAS has to offer, reach out to our sales team to find out how to get your hands on the latest and greatest TrueNAS appliances.
A major cornerstone of system integration introduced in TrueNAS 25.10 is the new Versioned TrueNAS API, a powerful interface built upon JSON-RPC 2.0 over WebSocket. This new API offers significant speed improvements over the old REST-based interface, leading to more responsive interactions with the TrueNAS system both from the built-in WebUI and from third-party integrations.
The versioned nature of the API also represents our commitment to predictable compatibility with third-party vendors and community integration efforts. By targeting a specific API version, software integrations can be assured of reliable functionality even after future TrueNAS upgrades, simplifying long-term management and software development lifecycles. Several plugins are already under development to leverage the new API, including plugins for Kubernetes, VMware vSphere, and Proxmox VE.
Our API is openly and fully documented at api.truenas.com, ready to help you integrate and leverage the power of TrueNAS in your own organization. If you’re a software developer interested in creating integrations between your product and TrueNAS, please reach out to us, and let’s build something amazing together.
The new TrueNAS 25.10 update process overhauls the System Update page to introduce Update Profiles, making system updates simpler, more transparent, and user-centric.
Users can now choose from distinct update profiles to align with their operational needs and risk tolerance:
By selecting a profile, users ensure they receive update notifications that are directly relevant to their chosen pace and preferences, eliminating unnecessary alerts and providing a more focused experience. The new System Update page also includes a summary of key changes from the Release Notes, as well as a link to the full technical documentation available on docs.truenas.com for each release.
Functionality is fantastic, but the most powerful storage solution needs to be the easiest as well. We’ve tweaked and tuned multiple workflows in TrueNAS 25.10, with some of the improvements including:
If you haven’t heard of our new web-based control panel TrueNAS Connect, TrueNAS 25.10 enables this centralized system monitoring and management platform, making it easier to stay in control with predictable workflows and greater visibility across your storage platforms.
A simple, secure way to manage your TrueNAS system, TrueNAS Connect enhances – rather than replaces – the familiar TrueNAS interface with a real-time health monitoring, customizable alert delivery, inventory management, and more. Users just getting starting with their first TrueNAS installation can even experience the guided, web-driven installation from TrueNAS Connect, eliminating the need for a traditional console-based setup.
The pre-release version of TrueNAS Connect is free for our TrueNAS Community users to test-drive until December 1, 2025, with a staged rollout targeting TrueNAS Enterprise users by March 2026. New or existing TrueNAS 25.10 users can get started today at connect.truenas.com by signing in with their Google or GitHub OAuth credentials.
For several years, TrueNAS has provided a lightweight virtualization environment to allow customers to run compute workloads directly adjacent to their reliable storage. With TrueNAS 25.10, we’re introducing new Enterprise-ready virtualization capabilities, in a technology we’re calling the “Data Hypervisor.”
We’ve separated out the Enterprise-ready “Virtualization” interface from the experimental “Containers” panel, ensuring a more organized experience that doesn’t conflate the features of the two distinct methods of virtualization workloads on TrueNAS. Machines in the “Virtualization” interface run on the Kernel-based Virtual Machine (KVM) hypervisor, the same engine that powers virtualization at hyperscalers worldwide. TrueNAS 25.10 extends this previous VM functionality by enabling VMs on TrueNAS high-availability appliances, minimizing downtime for enterprise applications and services. These capabilities are specifically designed to leverage the high-performance and reliable storage provided by TrueNAS Enterprise appliances, offering a comprehensive solution for data-oriented workloads and customized appliance needs.
In addition to these capabilities, a crucial addition for flexibility and data mobility is the Virtualization Disk Import and Export feature, which enables the seamless migration and management of VM disk images within TrueNAS. It supports a wide range of popular formats, including VMDK (VMware), VDI (VirtualBox), and QCOW2 (QEMU Copy On Write). This broad compatibility ensures that users can easily integrate existing virtual machine environments into their TrueNAS infrastructure, and import pre-defined virtual appliances supplied by a number of third-party vendors.
Whether you’re looking to upgrade from an earlier release or jump into TrueNAS for the very first time, there’s much more to learn about and love in TrueNAS 25.10. Check out our earlier blogs on TrueNAS 25.10-RC1 and TrueNAS 25.10-BETA to read more details on some of the Goldeye highlights and hardware support.
Ready to experience TrueNAS? You can download TrueNAS Community Edition to try it out, or if your business is ready to join the more than 60% of the Fortune 500 already using TrueNAS, reach out to our sales team and find out how the unified storage of TrueNAS can help you and your business take control of your storage.
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