Fweeb writes:
A number of people who make Blender add-ons are somewhat unclear on what that you must do in an effort to be sure that the add-on correctly complies with the GNU Basic Public License (in any other case know because the GPL… it is the identical license that Blender itself makes use of, and, sure, add-ons should be appropriate with that license). So to assist clear any confusion, we wrote this complete information on what precisely that you must do in an effort to be sure that your add-on is totally on the up-and-up with respect to the phrases of the GPL.
So right here you go: all the things you needed to know (and possibly a couple of stuff you did not) about making your Blender add-ons GPL-compliant.
https://orangeturbine.com/posts/how-to-make-your-blender-add-on-gpl-compliant