Hello,
a member of the community warned us about a notice of Copyright infringement from the OpenMandriva English page in Wikipedia.
This warning is due to the fact some parts of the articles inside the blog, more precisely the About, Governance and Community pages have been used to create the page. It would of course not have been a problem if our blog was not licensed by default in CC BY-NC-ND (which do not let rewriting part the articles inside Wikipedia). We simply did not pay attention enough to the footer of our theme 
This is now fixed: we apply to the whole blog the CC BY-SA 3.0 unported licence.
This takes effect on every article inside the blog, and then cancel the previous licence.