TL;DR: Apple has updated the mute key on the MacBook Air M4 to feature a speaker symbol with a strikethrough line, replacing the previous design used since 1999. The latter had no strikethrough, and ...

The mute key’s label now features a speaker with a strike through it so it more closely resembles the icon that appears in macOS when pressed, as spotted by iCulture. Apple made the change on the new ...