Unlocking the Power of Mobile App Development in TrueNAS 25.10-BETA

With dozens of new features and hundreds of fixes, TrueNAS “Goldeye” testers are encouraged to take it through its paces as it continues to be refined for its October 2026 release. This cutting-edge update is packed with exciting innovations that will revolutionize the way you approach mobile app development.

Linux Kernel and NVIDIA Blackwell Support

The Linux Long-Term Support (LTS) kernel has been updated from 6.12.15 to 6.12.33, offering improved hardware compatibility and addressing edge-case performance issues for a more reliable and stable experience. Additionally, TrueNAS 25.10 now uses the NVIDIA Open Source GPU Kernel modules with the 570.172.08 driver, adding support for the latest NVIDIA GPUs including the RTX 50-series and RTX PRO Blackwell cards.

ZFS 2.3.3: The Powerhouse of Mobile App Development

ZFS File Rewrite is a TrueNAS-developed extension to OpenZFS 2.3.3, enabling datasets and files to be rewritten to your ZFS pool and updated with the latest changes made to vdev layout, compression algorithm changes, and deduplication functionality. This powerful feature allows for seamless rebalancing of data after vdev addition or RAIDZ expansion, with no impact on file modification time, ownership, or permissions.

Faster Caching: The Key to Unlocking Mobile App Development

Faster caching is enabled through Adaptive Replacement Cache (ARC) improvements, including greater parallelization of operations and eviction speeds for data that is no longer valuable to be cached in RAM. This innovation will significantly benefit high-performance systems with multiple cores and fast NVMe devices.

DirectIO: Optimizing Mobile App Development Workflows

DirectIO allows file protocols to avoid the ARC if caching does not improve performance for specific datasets. By avoiding extra memory copy routines for rapid pools and allowing a method to bypass cache for client workloads that know they will read data only once, TrueNAS can further optimize the contents of ARC, improving memory bandwidth and performance for specific High-Performance Computing (HPC) use-cases.

TrueNAS Versioned API: Unlocking Integration Options

A new, fully-versioned, and much faster JSON-RPC 2.0 over WebSocket implementation has been introduced with TrueNAS 25.10, offering a more reliable and efficient integration experience. The previous REST API has been deprecated, and will be fully removed in a future TrueNAS release.

New TrueNAS Update Advisor and Profiles

The update process has been overhauled, allowing users to select their “User Profile” directly in the Web UI. This feature simplifies the update process, ensuring that only relevant updates are displayed based on the selected profile.

Virtualization: A Game-Changer for Mobile App Development

TrueNAS 25.10-BETA includes separate tabs for its two different Virtualization solutions. The experimental lightweight Linux Containers (LXC) are available under the Instances tab, with full KVM-powered Virtual Machines (VM) available under the Virtualization tab.

NVMe over Fabric: Unlocking High-Speed Performance

NVMe over Fabric takes performance to the next level by enabling high-speed data transfer and reducing latency. This feature is especially useful for applications that require fast data processing and transmission.