CUPS has a GPL exception for OS X software. [0] My interpretation of it is that ...

		cozzyd on April 15, 2015 \| parent \| context \| favorite \| on: Apple ResearchKit on GitHub CUPS has a GPL exception for OS X software. [0] My interpretation of it is that it allows people to make proprietary printer drivers for OS X, making them useless on Linux. [0] http://cups.org/documentation.php/doc-2.0/license.html

That's chilling. Shame on them.