On 17/01/2017 15:31, Kevin Fleming wrote:
In general 'permissive' vs. 'non-permissive' applies to the obligation
to publish source code, not the obligation(s) to reproduce copyright and
license notices.
Yes, but not only this. Copyleft licenses like GPL define *also* the
license on which derived works must be released, so also derived works
remain fee/modifiable, etc..
Apache/MIT/GPL specify explicitely how you can relicense derived works:
* in GPL you mus apply the same GPL license also to derived works
* in MIT/Apache you can freely relicense the derived work, until you
cite/credit the original work
BSD and ISC do not specify if/how you can relicense, IMHO their text is
not so clear.
Regards,
Massimo
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