[WARNING - NOT A LAWYER]
From what I've read, the rules on this are pretty clear - you can't make a *more* restrictive license apply retrospectively to someone who downloaded it under a previously agreed upon set of terms.
If you could, what would prevent someone - let's pretend it was the evil genius behind the SSO ;-) - from offering his library for free for years, then suddenly publishing it with a license that said "Anybody who uses this automatically owes me $1,000,000, payable immediately. Also, I get the right to name all your children."
Unless there was something in the ORIGINAL license that said something along the lines of "the creator reserves the right to preemptively and retroactively change the terms of this agreement at any time", I don't see how it would enforceable (at least in the US). The user would simply have to flash the original terms of agreement and say "Hey, these are the terms we *both* agreed I was signing up for when I downloaded this."
[/WARNING - NOT A LAWYER]
That's my two bits.
-- Kurt
What Paul said. I knew I'd read that someplace...
Kurt
From what I've read, the rules on this are pretty clear - you can't make a *more* restrictive license apply retrospectively to someone who downloaded it under a previously agreed upon set of terms.
If you could, what would prevent someone - let's pretend it was the evil genius behind the SSO ;-) - from offering his library for free for years, then suddenly publishing it with a license that said "Anybody who uses this automatically owes me $1,000,000, payable immediately. Also, I get the right to name all your children."
Unless there was something in the ORIGINAL license that said something along the lines of "the creator reserves the right to preemptively and retroactively change the terms of this agreement at any time", I don't see how it would enforceable (at least in the US). The user would simply have to flash the original terms of agreement and say "Hey, these are the terms we *both* agreed I was signing up for when I downloaded this."
[/WARNING - NOT A LAWYER]
That's my two bits.
-- Kurt
(07-08-2016, 06:09 PM)pbattersby Wrote: This might help:
Creative Commons FAQs
From one of the FAQs at the above link:
What if I change my mind about using a CC license?
Quote:CC licenses are not revocable. Once something has been published under a CC license, licensees may continue using it according to the license terms for the duration of applicable copyright and similar rights. As a licensor, you may stop distributing under the CC license at any time, but anyone who has access to a copy of the material may continue to redistribute it under the CC license terms. While you cannot revoke the license, CC licenses do provide a mechanism for licensors to ask that others using their material remove the attribution information. You should think carefully before choosing a Creative Commons license.
What Paul said. I knew I'd read that someplace...
Kurt