[tyingq]

Maybe? Wikipedia says

"In March 2002, Apple Inc. adopted CUPS as the printing system for Mac OS X 10.2.[6] In February 2007, Apple Inc. hired chief developer Michael Sweet and purchased the CUPS source code.[7] On December 20, 2019 Michael Sweet announced on his blog that he had left Apple.[8]"

[projektfu]

I hope they recognize it’s a little bit important. A lot of their users still produce paper.

[stqism]

On his blog post he mentioned that there are still 2 other apple engineers working on CUPS, and that Apple still very much owns the code.

I can’t imagine it going away anytime soon.

[lights0123]

They use it in every device they sell that can print (iOS and macOS), so it's pretty important for them.