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Law

The Legal Validity of Open-Source Licenses in Proprietary Software Disputes

Quick fact

In the landmark case Jacobsen v. Katzer (2008), the U.S. Federal Circuit ruled that violation of an open-source license's terms can constitute copyright infringement, giving open-source licensors a powerful legal remedy beyond mere breach of contract.

Why this is interesting

You might think open-source licenses are just polite requests, but courts have repeatedly ruled that they are legally binding. How can a free license pack such a legal punch?