[ganoushoreilly]

They changed something within the ANC codebase, they confirmed as much. It's also not disputed that it's of a different / lower quality than before (if you can tell or not is up for debate).

The APM already have issues with reliability as is so i'm sure this is only bound to make people more upset.

[lxgr]

I don't doubt at all that something could have changed, or even that it changed for the worse, but the extraordinary claim ("Apple broke it intentionally or negligently because of a patent lawsuit") demands a bit more evidence than anonymous speculation on a web forum.

[ganoushoreilly]

Well they've already acknowledge the changes in the firmware, so our interpretations aside, they have materially altered it. Now the question becomes is there a user agreement that allows software updates / changes that may limit or restrict features in future upgrades, that i'm not aware of.

The nature of the software change was an intentional action, the result of which may not have been the outcome but it was still intentional. That's their argument.