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Open Source Debate: Copyleft vs. Permissive Licenses

Most discussions of free software licenses bore listeners. In fact, licenses are usually of such little interest that 85%of the projects on Github fail to have one.

However, one aspect of licensing never fails to stir partisan responses: the debate over the relative advantages of copyleft licenses such as the GNU General Public License (GPL), and permissive licenses such as the MIT or the Apache 2 licenses.