> you cannot accept community patches to the GPL software and use them for your closed-source branch. You can if the community developers give you permission (

> you cannot accept community patches to the GPL software and use them for your closed-source branch. You can if the community developers give you permission (licenses) to keep offering the whole project under both open and commercial terms. Happens all the time. Many companies use contributor license agreements for this. Others simply ask that community contributors make their work available under permissive terms like Apache, MIT, or BSD.