I've read all of this stuff before -- YAWN --but it's one unofficial word against another.
I would still like to see a history of bug fixes for each version that has been published by Panasonic.
Until then, I consider it all "Smoke, Mirrors, and Conjecture".
Since we are not about to get anything more from Panasonic we might just as well forget about the whole subject.
For the record, I discovered recognizable bugs in 1.4 in my KN7000 (as shipped from the factory) that was corrected by installing 1.5 from Taiyo. No problems since.
Walt