[smoldesu]

Why didn't they abstract it, or create a stripped/safe userland option to replace it? If I'm relying on a Mac for work, I can't have them removing essential features from my computer in a simple upgrade. Maybe MacOS needs semantic versioning, or at least some level of communication with the end user about compatibility.

[slrz]

This was never an intended feature. If I understand the article correctly, they were using an undocumented ("private") API which happened to stop working.

[smoldesu]

Every API is undocumented on MacOS, what do you want them to do? How are you supposed to discern between zombie XNU code and Good LTS Apple Compliant code?

[brokenmachine]

Rule of thumb: if you paid for an official Apple dongle, all related code is LTS (*until said dongle is deprecated on a whim, of course).