macOS Catalina 10.15.4 warns that legacy kernel extensions won’t work in the future

The new macOS Catalina 10.15.4 software that dropped this week throws a compatibility message when a kernel extension first loads or is being used. According to a newly published support document on Apple’s website, some kernel extensions will not work in the future.

MacOS Catalina: Apple lets the Mac be a pro, and makes the iPad a partner

If you’ve been a fan of the Mac during the past decade, you’ve probably felt like a kid who had been an only child until their parents surprised everyone by having a baby late in life. But, this wasn’t just any new baby. The little wunderkind went on to become a straight-A student, a sports star and a decent human being loved by everyone in the community. Every once in a while, people remember that the kid has an older sibling — who they admit is pretty cool, too. That’s the Mac. 

But, after more than a decade of living in the shadow of the iPhone, the Mac is having a comeback year in 2019.