Just booted my RC only to be advised that it needed updating to the latest firmware ! Downloaded and updated to 1.4 but shows as 1.3.2+ on the RC. No idea what the upgrade is supposed to address in terms of functionality or bugs as there's no mention of the upgrade on the DJI website.
Not checked this out yet ( working takes all the fun out of life ). If you are NOT running 1.3.2 and wish to remain on a lower version ( 1.2.6/8 or lower for whatever reason ) I would hold off on updating the controller JUST INCASE it is mandatory to do the aircraft too.
I will look into this after I have finished my life draining daytime activities