ArduPilot Copter 4.7.1 remains the current stable maintenance point for builders
Copter 4.7.1 is the stable release, adding support for several boards and sensor combinations including ARKV6S, CORVON V5, ORBITH743v2 and additional IMU/barometer combinations on DAKEFPV, Flywoo and Kakute targets.
Wed, 23 Sep 2026
Board support often determines whether a custom build can stay on a stable branch instead of relying on development firmware.
Back up parameters before upgrading and read the board-specific changes. A maintenance release can still alter hardware support that matters to a particular build.