With version TrueNAS 25.10.0, codenamed “Goldeye”, iXsystems delivers what is arguably the most comprehensive update since the introduction of TrueNAS SCALE. In addition to many under-the-hood improvements, this release brings significant innovations in virtualization, storage performance, and administration.
NVMe over Fabrics: Next-Generation 400 GbE Storage
One of the highlights is full support for NVMe over Fabrics (NVMe-oF). The Community Edition now offers NVMe-oF via TCP, while Enterprise users additionally receive RDMA support. This enables high-performance storage networks with up to 400 GbE — a significant leap for virtualized and containerized environments where latency is critical.
Especially in enterprise environments, the new protocol opens up possibilities for using TrueNAS as a central NVMe backend for large virtualization clusters — including ZFS redundancy, snapshot functionality, and encrypted replication.
Virtualization with Secure Boot and New Failover
The virtualization area has been fundamentally redesigned. TrueNAS 25.10 now supports Secure Boot for virtual machines, making the boot process more secure. In addition, VM disks can be imported or exported in numerous formats — including QCOW2, RAW, VDI, VHDX, and VMDK.
Enterprise customers additionally benefit from the new HA failover support for VMs, allowing production workloads to be deployed in a highly available manner. The new interface for virtual machines has also been redesigned for better clarity and integrates seamlessly into the revamped dashboard.
New Update Profile System
A practical detail, especially for admins with clearly defined maintenance windows: The new update profile system allows you to define the risk tolerance for updates. TrueNAS can then display automatic notifications based on the stability level — from conservative to experimental. This gives administrators control over which versions are deployed in production.
ZFS, Performance, and Stability
Significant improvements have also been made to the core system. ZFS received important fixes for encrypted snapshot replication and Direct I/O support. The storage subsystem now handles high memory pressure more efficiently and prevents out-of-memory crashes that could occur under parallel VM and ARC loads. Additionally, improvements to I/O scaling have been made, which are particularly effective on systems with 100 GbE+ networks.
In the networking area, there is native 400 GbE support, more stable transitions between DHCP and static IP configuration, and optimized routing routines.
User Interface, Apps, and Management
The user interface has received a visible update: The Updates, Users, Datasets, and Storage Dashboard sections have been redesigned. User information is now displayed more clearly, password manager compatibility has been improved, and the overall user experience has been modernized.
In the Apps system, applications can now be moved via automatic pool migration, and external container registries are supported — for example, for private Docker mirrors.
Breaking Changes — Administrators Should Review
Some changes require special attention after the update:
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NVIDIA drivers: TrueNAS switches to open-source drivers. GPUs from Turing (RTX / GTX 16 series+) onward are supported. Older architectures such as Pascal, Maxwell, or Volta are no longer supported.
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Active Directory (IDMAP): The AUTORID backend has been removed and automatically migrated to RID. After the upgrade, ACLs and permissions should be carefully reviewed.
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Certificates: The internal CA functionality has been removed. Instead, the use of external CAs or ACME certificates with DNS authentication is recommended.
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SMART monitoring: The built-in SMART UI has been removed; existing tests are migrated to cron jobs. For modern monitoring, the Scrutiny app is recommended.
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SMB shares: The new preset system for shares automatically transitions old “No Preset” shares to “Legacy Share” mode.
Conclusion
TrueNAS 25.10 “Goldeye” is a strong fall release: More performance, higher security, clearer administration — and a clear focus on enterprise stability. Those running production environments should pay attention to the migration notes (GPU, AD IDMAP, certificates), but will afterwards benefit from a modern, stable platform built for the future.
Prepare Your Upgrade Now
TrueNAS 25.10 takes performance, security, and enterprise features to the next level. DATAZONE supports you with upgrade planning, migration, and performance tuning.
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