[cc-licenses] GPL compatibility: clarification about attribution removal

Sarah Pearson sarah at creativecommons.org
Tue Apr 21 16:14:38 EDT 2015

Hi everyone,

As you all know, we're working with the FSF to enable one-way compatibility
from BY-SA 4.0 to the GPLv3. All signs point to this moving forward, and we
are preparing for an announcement in early May.

As we were conducting the final analysis, we discovered that I failed to
point out one relatively significant point during the public discussion.

*When BY-SA content is adapted into GPL projects, downstream users will be
able to look to the conditions of the GPL to satisfy their obligations to
the BY-SA licensor. GPLv3 does not contain a clause that parallels the
attribution removal clause in BY-SA 4.0. *

This point was raised during the compatibility process for the Free Art
License on this mailing list
but we thought it was worth calling it out again in the GPLv3 context.

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