1) added automatic backup/restore of parameters in case of FRAM corruption for F7/H7 boards with 32k FRAM parameter storage
2) fixed a bug in EKF2/EKF3 that could cause memory corruption if external naviagtion sources (such as vision based position and velocity data) is supplied before the EKF has initialised
3) fixed a problem with low accuracy data from UAVCAN GPS modules when GPS blending is enabled
4) fixed an arming check failure with u-blox M9 based GPS modules
5) fixed a race condition in SmartRTL which could cause a LAND mode to be triggered