https://www.cnet.com/news/ifixit-apples-new-macbook-pro-keyboard-may-repel-dust-after-all/

Apple explicitly told CNET that though its 2018 MacBook Pro comes with a new third-generation "butterfly switch" keyboard, it didn't do any new engineering or tweaks to prevent the dreaded "sticky key" issue that's sparked multiple lawsuits and a free Apple repair program over the past few months.

But gadget repair and teardown site iFixit has evidence that Apple may have actually quietly addressed the issue. It turns out that the new MacBook Pro's keyboard has a new, thin silicone membrane on top of the mechanism that seems purposefully designed to shield the delicate mechanical parts from dust -- not least of which because it's a dead ringer for a patented Apple design called "Ingress Protection for Keyboards."