It was declared that the Wikimedia Foundation will be changing the terms of its licenses on the content in Wikipedia to Creative Commons Attribution/Share-Alike License (CC-BY-SA), with the aim of simplifying the process of re-using the content on Wikipedia and its other sites.

The decision has already been approved by Wikimedia's Board of Trustees. 

Site’s current license, the GNU Free Documentation License (FDL), will continue to be supported in certain cases, while all Wikimedia sites will make the CC-BY-SA license their primary one. 

CC-BY-SA will make Wikimedia’s content "legally compatible" with content elsewhere that is also governed by this license. Moreover, the new license is expected to allow Wikimedia to drop the GNU FDL's requirement of including a copy of the license text with each copy.

It should be reminded that contend on Wikimedia can be used "for any purpose," provided that users give proper credit and make their modifications available under the same terms as set by the organization.