For anyone that uses Rails, https://github.com/minad/mimemagic/issues/97
As a result of this license change, mimemagic was yanked from RubyGems effectively making all builds of Rails later than 3 (?? I think) fail.
Frankly, I'm tired of the cat-and-mouse.
Wow this is one of the most interesting things I've read in a long time. https://firstname.lastname@example.org/dependency-confusion-4a5d60fec610
Dependency Confusion as a vulnerability to repos that use NPM, RubyGems, & PyPI.