News for hackers. Stuff that matters.
Re:CUPS License Change Coming by hsivonen on Friday November 10, 2017 @05:41AM (#15669060)
The title here suggests the license was GPLv2 previously. It was GPLv2 and proprietary relicensing.

That is, printer vendors were already able to not comply with the GPL when a proprietary license from Apple applied.

Re:CUPS License Change Coming by raimue on Friday November 10, 2017 @02:01PM (#15672067)
Indeed, the old license [1] was not pure GPLv2, but a variant of GPLv2 with additional exceptions for Apple operating systems, allowing others to develop proprietary printer drivers for Apple operating systems. It even covered the use of the example code for this purpose without the need to release the source code of the resulting driver based on that.

[1] https://github.com/apple/cups/blob/branch-2.2/LICENSE.txt