patch0 writes: "The US federal appeals court overturned a lower court decision involving free software used in model trains that a hobbyist put online. Robert Jacobsen had written and then released code under an Artistic Licence. This meant anyone using that free code had to attribute the author, highlight the original source of the files and explain how the code had been modified. Commercial software developer Matthew Katzer and his company were accused of ignoring the terms of the Artistic Licence when they took his code and used it to develop commercial software products."
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