Sep 14, 2026

• Sep 14, 2026 —

  Connected-Device Status Fix

  Horizon No Longer Sticks at "Connected" After Unplug Unplugging a Horizon Hardware Unit while its status wasn't actively being watched — the GCS computer asleep, or the Horizon UI page closed — could leave Beam reporting the unit as connected indefinitely. Refreshing didn't help, and a newly connected unit was ignored until Beam was restarted. Beam now tracks the unit's connection state directly

  Horizon UI · 1.15.3
• Sep 14, 2026 —

  Disarm and Engine Control Over Satellite

  Disarm, Engine Control, and Aux-Function Commands Over BLOS Horizon UI now forwards three more commands to the aircraft over the satellite link: disarm, engine control, and ArduPilot's aux function (motor E-stop, disarm switch, and similar). Previously these were dropped whenever only the BLOS link was up, leaving no way to disarm, stop the engine, or trigger an aux function once the aircraft was

  Horizon UI · 1.15.2

Sep 10, 2026

• Sep 10, 2026 —

  Engine RPM Over Satellite

  Engine RPM Over BLOS Engine RPM now reaches your ground control application over the satellite link, not only the LOS radio. Horizon UI synthesizes an ArduPilot RPM message from each BLOS telemetry report and forwards it alongside the other satellite-derived telemetry (attitude, position, system status, and more). As with those fields, the LOS radio's own RPM report always takes priority when

  Horizon UI · 1.15.1

Sep 1, 2026

• Sep 1, 2026 —

  Multi-Aircraft and Payload Control

  Payload Control A new Advanced Settings modal on the Connected Device screen adds payload control — switch payloads on and off from a mission plan (e.g. on arrival at a waypoint) or by hand. This feature can control the LOS radio, BLOS satellite link, or also external payload connected to Horizon's GPIO. MAVLink Equipment Control: Map each component — BLOS, LOS Radio, and IO Payload — to a

  Horizon UI · 1.15.0Horizon · 3.73.0

Jul 31, 2026

• Jul 31, 2026 —

  Web UI Telemetry Fix

  Web UI No Longer Breaks on Missing Telemetry Fields PX4 reports an unavailable float field — for example, airspeed with no pitot sensor installed — as NaN. A single NaN field could stop Horizon UI's status stream and make the web map unreachable. All float-sourced telemetry is now guarded at ingestion: an unavailable field reports as unknown rather than breaking the feed, and GPS-reported

  Horizon UI · 1.14.1

Jul 21, 2026

• Jul 21, 2026 —

  Flight Log and GCS Compatibility Fixes

  Flight Log Stays Live Across LOS → BLOS Handovers Fixes a freeze where the Flight Log and package queue stopped updating after an aircraft lost line of sight and failed over to satellite. Horizon UI now keeps polling through link changes and drone handovers, whether the operator subscribed to BLOS manually or the failover happened automatically. The Flight Log and package queue are also cleared

  Horizon UI · 1.13.1

Jul 17, 2026

• Jul 17, 2026 —

  BLOS enhancements

  Flight Log: Delivery Confirmation The per-aircraft Flight Log replaces the old satellite package queue. Command entries advance Pending → Sending → Delivered. Delivered is now a positive receipt from the aircraft; confirmed entries persist (dimmed) as a delivery record. The log has two controls: Clear Queue cancels pending outbound tasks; Clear Log clears completed receipts. BLOS flight-plan

  Horizon UI · 1.13.0