Copter-4.2.0-rc1 available for beta testing!

Copter-4.2.0-rc1 has been released for beta testing and can be downloaded from MP or QGC using the beta firmwares links.

The changes vs -beta3 are in the ReleaseNotes and also copied below.

Copter 4.2.0-rc1 10-Apr-2022
Changes from 4.2.0-beta3

  1. Minor Enhancements
    a) Log and monitor threads stack size increased
    b) SPro H7 Extreme QSPI support improved
  2. Bug fixes
    a) EKF3 accel bias fixed when an IMU is disabled
    b) MatekH743 buzzer fixed by reverting to 16 bit timer
    c) STM32 H7 flash storage bug fixed that caused re-init on overflow
    d) @SYS file logging fixed
    e) Timer bug fixed that could cause a watchdog on boards using flash storage (mostly smaller racing boards)
    f) UART driver incorrect lock class fixed

You may noticed this release is named “-rc1” meaning we think we are actually already quite close to the stable release.

All testing and feedback is very much appreciated!