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I'm working on a fork of a project under the GPL that hasn't been maintained for over a year. How do I handle the copyright notice?
Here is the copyright notice how do I add my copyright?
Copyright © 2013–2014 Philipp Emanuel Weidmann (firstname.lastname@example.org) Final Term is free software: you c...
I have made a lot of changes and have many new features planed, I'm estimating around 60% of the code base will be different/new.