Tracker-4.5.1

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

Rover-4.5.1

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

Copter-4.5.1

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

Plane 4.1

Details of 4.1.x releases for plane here: https://discuss.ardupilot.org/t/plane-4-1-0-stable/76507

Tracker-4.5.0

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

Rover-4.5.0

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

Plane-4.5.0

Plane-4.5.0 was released as the official/stable version for planes and quadplanes on 02-Apr-2024

Copter-4.5.0

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-4.4.0

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

Plane-4.4.4

Changes from 4.4.3:

• CubeOrange Sim-on-hardware compilation fix
• RADIX2HD supports external I2C compasses
• SpeedyBeeF405v4 support
• DroneCAN battery monitor with cell monitor SoC reporting fix
• ProfiLED output fixed in both Notify and Scripting
• NTF_LED_TYPES parameter description fixed (was missing IS31FL3195)
• Scripting bug that could cause crash if parameters were added in flight
• STAT_BOOTCNT param fix (was not updating in some cases)
• don't query hobbywing DroneCAN ESC IDs while armed
• clamp empy version to prevent build errors