Trillium adopts semantic numbering with software 3.1

Release 3.1 supersedes software version 26.2. Over the coming weeks, every commercial production gimbal ships with 3.1, and the HD40 family is the first to receive it.

Under the new scheme, the first number marks major releases: architectural shifts or compatibility breaks, API updates among them. The second covers minor releases with new capabilities, performance gains and added features that stay backward compatible. The third is reserved for patches, meaning fault corrections, stability work and low-risk updates.

Trillium says the structure scales better as its software grows and gives customers more visibility of what each release contains. Builds written for individual customers are unaffected: they keep their existing version numbers and remain fully supported, so locked configurations stay stable.

Release 3.1 itself carries five groups of changes. Motion control gets smoother movement, better limit handling and a steadier hold on the target when an aircraft passes overhead. Tracking jitters less, switches modes more smoothly and draws cleaner overlays. Updated colour tuning, white balance, sensor behaviour and contrast enhancement aim at more consistent imagery across EO modes. Reliability fixes target unexpected resets, dropped networks and pipeline crashes, and tighten safety interlocks. Firmware updates, configuration-file handling and parts of the user interface are streamlined to simplify setup and management.

Why it matters

Operators who qualify a gimbal inside a larger aircraft system need to know whether an update touches the interface or only fixes faults. A major number now flags API or architectural shifts, while a minor or patch number signals backward-compatible work, which helps integration teams plan upgrade paths and regression testing.

The locked customer builds matter for the same reason. Programmes that have frozen a software baseline keep it, and the new numbering applies to the general production line.

Trillium directs questions on compatibility, release planning and upgrade paths to its representatives and support team. Access to the full release details and the latest software also goes through them, so customers who want the complete change list contact the company directly.