[larve]

From the article the claim originates from: https://www.rtings.com/headphones/reviews/apple/airpods-max-...

> When it comes to the mid and treble ranges, this firmware update has slightly changed the level of isolation, but it's a relatively minor difference.

Furthermore a comment indicates that the noise generator they might have used has slightly changed as well. I'm not sure what the outcry is all about. Most people experiencing changes in ANC usually have cruft on their microphones and that issue is easily fixed with a q-tip.

[somehnguy]

Every single pair of ANC headphones I’ve owned from Sony to Bose (and now Apple) ends up having a dozen threads with people yelling not to update because the ANC is nerfed. I’ve never noticed any difference, and I highly doubt any of it is true. People just get used to the ANC and hear things differently than when they first bought them. Or like you said, crud in the microphones from daily use.