ArduPlane, ArduCopter, ArduRover, ArduSub source
Copter-4.5.1 was released as the official version for multicopters and traditional helicopters on 08-Apr-2024 Release announcement: https://discuss.ardupilot.org/t/copter-4-5-1-released/115973
Rover-4.5.1 was released as the official version for rovers and boats on 08-Apr-2024 Release announcement: https://discuss.ardupilot.org/t/rover-4-5-1-released/115974
Tracker-4.5.1 was released as the official version on 08-Apr-2024 Release announcement: https://discuss.ardupilot.org/t/tracker-4-5-1-released/115975
Plane-4.5.0 was released as the official/stable version for planes and quadplanes on 02-Apr-2024
Copter-4.5.0 was released as the official version on 02-Apr-2024
Release Announcement: https://discuss.ardupilot.org/t/copter-4-5-0-released/115614
Rover-4.5.0 was released as the official version on 02-Apr-2024
Official release announcement: https://discuss.ardupilot.org/t/rover-4-5-0-released/115615
Tracker-4.5.0 was released as the official version on 02-Apr-2024
Official release announcement: https://discuss.ardupilot.org/t/tracker-4-5-0-released/115616
Changes from 4.4.3:
Rover-4.4.0 was released as the stable version for cars and boats on 19-Dec-2023
Official release announcement: https://discuss.ardupilot.org/t/rover-4-4-0-released/110774
Copter-4.4.4 was released as the stable version for multicopters and traditional helicopters on 19-Dec-2023
Official release announcement: https://discuss.ardupilot.org/t/copter-4-4-4-released/110773