Comment by pxc

CUPS is still the only print system macOS has. Apple never dropped it in the sense of ceasing to use it! "They dropped it" only in the sense of more or less ceasing to maintain it-- there was only one commit in the course of about a year, and no patches accepted from outside contributors at that time-- until it eventually had to be forked.

The name stands for Common Unix Printing System, and Apple CUPS ceased to meaningfully be that after its author left the company. But Apple still uses CUPS in their operating systems!