Any idea if this update is OTA or not?This might be interesting or nothing.
Apparently, they have been failing when flashing an update to the BECM (Battery controller). It had been failing due to incorrect handshaking by Pathfinder.
Pathfinder is the JLR software for flashing their cars. They just fixed the BECM issue so battery controllers can accept a new flash.
This could be for the jump to 100kW+ charging. Or it could be for some other fix that requires a reflash. Or it could just be for flashing a new BECM replacement part.