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Re: Effect of transfer of copyright on free software licenses?

From: Barry Margolin
Subject: Re: Effect of transfer of copyright on free software licenses?
Date: Sat, 18 Jul 2009 20:59:01 -0400
User-agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X)

In article <address@hidden>,
 Tim Smith <address@hidden> wrote:

> Suppose I create a copyrighted work. I release it under a license such 
> as GPLv2. You use it, in a way that requires permission of the copyright 
> holder, but is in accord with GPLv2, so you are OK.
> Suppose now that I transfer the copyright to someone else.
> Do you now have something to worry about if the copyright assignee 
> wishes to stop you from copying, modifying, and distributing the 
> software?
> The GPL is meant to be a bare license, not a contract, but doesn't that 
> mean it provides no protection if the ownership of the work changes?

I don't think the GPL allows for retroactive changes to the terms.  Once 
the code is licensed to you, the terms of the GPL apply as long as you 
meet your requirements.

Barry Margolin, address@hidden
Arlington, MA
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