🇳🇱
@masterofthetiger@theres.life
You said "most don't require visible permission" please be specific, which licenses?
Of the three most popular BSD, MIT, and Apache all attribution and copyright notices must be retained, it says nothing about if. it need be retained in the output or not but it is implied that it must be retained everywhere, including the output.
In fact in the BSD it goes a step further and dictates that even if the copyright/attribution is not presented explicitly to the end-user it must be provided witht he material distributed with the software (such as documentation or other material).
Either way in the top 3 permissive licenses it is clear they cant just make your old code proprietary. It **must** remain open and a reference to it must be retained with the software.
