First spotted by Brandon Butch, iOS 15.4 will offer support
for Face ID while wearing a mask. The text on the setup screen
implies that it focuses more on the area around a user’s eyes to
make a match. As Federico Viticci documented, it allows you
to add pairs of glasses too, which makes sense for greater
sensitivity around that specific area.
Today’s OS updates — MacOS 12.2 and iOS 15.3 (in all its device-specific variants) — are seemingly mostly bug fixes. But MacOS 12.3 and iOS 15.4 are feature upgrades. In addition to this welcome new support for using Face ID while wearing a mask, the MacOS 12.3/iPadOS 15.4 betas introduce the much-awaited Universal Control.