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PX4-Autopilot/docs/en/releases/main.md
Gennaro Guidone b8c5f66af0 feat(manual_control): replace stick override threshold with double-flick gesture (#27041) 
* feat(manual_control): trigger RC override on stick velocity

COM_RC_STICK_OV is now a velocity threshold (1/s) instead of a deflection percentage.
Default 3.0, range [1.0, 10.0]. A stick held statically cannot trigger override.

* docs(manual_control): update COM_RC_STICK_OV description for velocity-based override

* feat(manual_control): gate RC override with sign-consistency check

* fix(ManualControl): lower threshold and filter constant for RC override, add tests for MovingDiff

* refactor(commander): merge RC override params into COM_RC_OVR_SPEED

Replace the COM_RC_OVERRIDE bitmask + COM_RC_STICK_OV threshold with a
single float COM_RC_OVR_SPEED (stick override velocity, 0 = disabled).
Override now applies uniformly in auto and offboard modes.

- ManualControl: rename param, treat 0 as disabled (FLT_EPSILON guard)
- Commander: drop the per-mode bitmask gate and the RcOverrideBits enum
- param_translation: migrate COM_RC_OVERRIDE on import (enabled -> 1.0,
  disabled -> 0.0) and drop the unit-incompatible COM_RC_STICK_OV value
- docs: collapse the two params into one across the mode pages

* fix(manual_override): Move configuration to manual_control module

with MAN_OVERRIDE_SPD parameter and a negative value disabling the feature. All other logic stays in Commander.

* docs(releases): add release note for RC override rework (MAN_OVERRIDE_SPD)

---------

Co-authored-by: Matthias Grob <maetugr@gmail.com>
2026-07-01 14:59:52 +02:00

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PX4-Autopilot Main Release Notes

<script setup> import { useData } from 'vitepress' const { site } = useData(); </script>

This page is on a release branch, and hence probably out of date. See the latest version.

This contains changes to PX4 main branch after the next major release (PX v1.18).

::: warning PX4 v1.18 is in alpha/beta testing. Update these notes with features that are going to be in main (PX4 v1.18 or later) but not the PX4 v1.18 release. :::

Read Before Upgrading

  • The RC override parameters COM_RC_OVERRIDE and COM_RC_STICK_OV are replaced by a single MAN_OVERRIDE_SPD (minimum stick speed to take over, default 1; negative disables). COM_RC_OVERRIDE=0 is migrated to MAN_OVERRIDE_SPD=-1. The COM_RC_STICK_OV value is not auto-migrated because its unit changed, so re-tune MAN_OVERRIDE_SPD if you had customized it.

Please continue reading for upgrade instructions.

Major Changes

  • TBD

Upgrade Guide

Other changes

Hardware Support

  • TBD

Common

  • TBD

Control

  • TBD

Safety

  • TBD

Estimation

  • TBD

Sensors

  • TBD

Simulation

  • TBD

Debug & Logging

  • TBD

Ethernet

  • TBD

uXRCE-DDS / Zenoh / ROS2

  • TBD

MAVLink

  • TBD

RC

Multi-Rotor

  • TBD

VTOL

  • TBD

Fixed-wing

  • TBD

Rover

  • TBD

ROS 2

  • TBD
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