<p>The user ct have some weird issues. A firm could for example take osm data, add their own things and publish it back under odbl. But afterwards that odbl dataset can't be imported to osm by a user who accepted the ct because he can't assure it will always be odbl licensed. </p>
<div class="gmail_quote">Op 25 sep. 2011 21:33 schreef "Renaud MICHEL" <<a href="mailto:r.h.michel%2Bosm@gmail.com">r.h.michel+osm@gmail.com</a>> het volgende:<br type="attribution">> On dimanche 25 septembre 2011 at 18:32, Gerard Vanderveken wrote :<br>
>> Actually, You are accepting both, and the new OdbL license for your <br>>> existing and future contributions, and the new contributor terms, which <br>>> makes it easier to change the license again, if there is a reason to do<br>
>> so. For this change from CC-BY-SA to OdbL, everyone has to give its<br>>> acceptance, for changing to another (that would be then the third)<br>>> license a 2/3 majority is sufficient.<br>>> There is no license change from OdbL in the short future necessary or <br>
>> foreseen, and so these contributor terms aren't strictly needed now, but <br>>> it is a good provision to be ready in a distant future for a <br>>> modernisation of the OdbL license should it be needed, and then the <br>
>> transition will be much smoother by this majority principle.<br>> <br>> The current planet is still distributed under CC-By-SA only, but you are <br>> right that the CT already mention ODbL explicitly, so no new vote will be <br>
> required for that change.<br>> <br>> What I wanted to point at, is that the CT actually gives OSMF a wider right <br>> than simply relicensing under ODbL, we have implicitly accepted any future <br>> license that is proposed by OSMF and accepted by enough active mappers.<br>
> I think it is a good thing for the project (which is why I accepted them), <br>> but some people may not have the right to grant this if they have used some <br>> third party data.<br>> <br>> -- <br>> Renaud Michel<br>
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