I'm 100% sure that all releases 1.4 thru 1.6 are coming from Panasonic. Taiyo has no knowledge to disassemble KN7000 program code and make own code changes except some German word-to-word changes in Help-section.

I think that Panasonic UK and Panasonic USA doesn't like Taiyo's way to release updates public web-pages and therefore saying not to support it.

I personally like Taiyo's way to release updates when they are ready. Everyone can then make own decision, upgrade or not.