Rover: 4.2.3-rc3 release notes

Rover/release-notes.txt

@@ -1,5 +1,12 @@
 Rover Release Notes:
 ------------------------------------------------------------------
+Rover 4.2.3-rc3 20-Aug-2022
+Changes from 4.2.3-rc2
+1) OpenDroneId improvements including reporting if operator location is lost
+2) Firmware ID and CRC check (disabled by default)
+3) Bug Fixes
+    a) Revert Notch filter ordering on loss of RPM source (see 4.2.3-rc1's 3g below) because fix is incomplete
+------------------------------------------------------------------
 Rover 4.2.3-rc2 13-Aug-2022
 Changes from 4.2.3-rc1
 1) BlueRobotics Navigator autopilot filesystem fix