Copter-4.5.5-beta2 has been released for beta testing and can be installed using MP or QGC’s beta firmwares link. Alternatively the firmware can be directly downloaded from firmware.ardupilot.org.
The changes vs -beta1 are in the ReleaseNotes and copied below
- Board specific enhancements and bug fixes
- CubeRed’s second core disabled at boot to avoid spurious writes to RAM
- CubeRed bootloader’s dual endpoint update method fixed
This fix should make uploading firmware to the CubeRed easier