Copter-4.5.3-beta1 has been released for beta testing and can be installed using MP or QGC’s beta firmwares link or it can be directly downloaded from firmware.ardupilot.org.
The changes vs 4.5.2 are in the ReleaseNotes …
Copter-4.5.2 has been released as the stable version for multicopters and traditional helicopters and within a few hours of this posting can be installed using Mission Planner, QGC or it can be downloaded directly from f…