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not all cc sharealike licenses are copyleft, so be specific

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automatic relicensing is an exaggeration
cc by-sa case is even more nuanced, briefly mention in fn
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Mike Linksvayer 2014-10-21 22:16:49 -07:00 committed by Bradley M. Kuhn
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@ -1006,16 +1006,18 @@ combined and modified works. As such, software licensed under the terms of
``GPLv2-only'' cannot be combined with works licensed ``GPLv3-or-later''. ``GPLv2-only'' cannot be combined with works licensed ``GPLv3-or-later''.
This is admittedly a frustrating outcome. This is admittedly a frustrating outcome.
Other copyleft licenses that appeared after GPL, such Other copyleft licenses that appeared after GPL, such as the Creative Commons
as the Creative Commons ``Share Alike'' licenses, the Eclipse Public License ``Attribution-Share Alike'' licenses, the Eclipse Public License and the
and the Mozilla Public License \textbf{require} all copyright holders choosing Mozilla Public License \textbf{require} all copyright holders choosing
to use any version of those licenses to automatically accept and relicense to use any version of those licenses to automatically allow use of their
their copyrighted works under new versions. Of course, Creative Commons, the copyrighted works under new versions.\footnote{CC-BY-SA-2.0 and greater only
Eclipse Foundation, and the Mozilla Foundation (like the FSF) have generally permit licensing of adaptations under future versions; 1.0 did not have
served as excellent stewards of their licenses. Copyright holders using any accomodation for future version compatibility.} Of course, Creative
those licenses seems to find it acceptable to fully delegate all future Commons, the Eclipse Foundation, and the Mozilla Foundation (like the FSF)
licensing decisions for their copyrights to these organizations without a have generally served as excellent stewards of their licenses. Copyright
second thought. holders using those licenses seems to find it acceptable to fully delegate
all future licensing decisions for their copyrights to these organizations
without a second thought.
However, note that FSF gives herein the control of copyright holders to However, note that FSF gives herein the control of copyright holders to
decide whether or not to implicitly trust the FSF in its work of drafting decide whether or not to implicitly trust the FSF in its work of drafting