Re:Software Licenses and Failed States
by icebraining on Wednesday May 18, 2016 @05:30PM
(#11726143)
As far as I know, only dual licensing under a copyleft license (usually GPL or AGPL) and a paid proprietary license. It allows people to pay to avoid the copyleft.
That said, it works best for some kinds of software, since unlike commonly believed, the GPL doesn't require one to contribute back, only forward, so in some cases people might be allowed to modify it without sharing those changes.
By the way, if you follow the dual licensing route, you need to be careful about accepting contributions, as unless you make them sign a document saying so, you won't have the right to issue those paid licenses for that code.
That said, it works best for some kinds of software, since unlike commonly believed, the GPL doesn't require one to contribute back, only forward, so in some cases people might be allowed to modify it without sharing those changes.
By the way, if you follow the dual licensing route, you need to be careful about accepting contributions, as unless you make them sign a document saying so, you won't have the right to issue those paid licenses for that code.