ArduPilot Copter 4.7.1 is the current stable maintenance release
ArduPilot released Copter 4.7.1 on 3 September, adding board support and hardware-specific fixes after the larger 4.7.0 release. The 4.7.1 release family also covers Plane, Rover, Sub, Tracker and Periph.
Sun, 20 Sep 2026
Builders on newer H7/F4 boards gain explicit support, while production aircraft get a maintenance release instead of having to track development builds.
Back up parameters before upgrading and read board-specific notes, especially on custom or less common flight-controller targets.