[OSM-talk] OSM tiles under CC BY-SA 2.0, Wikimedia requires 2.5 or later

[Paul Norman]

On 11/20/2014 1:57 PM, Leeds Tracker wrote:
> Hello all,
>
> I was about to upload a map exported from the main site (SVG using 
> Mapnik style) which I see is licensed under CC BY-SA 2.0
>
> Wikimedia Common's upload page requires 2.5, 3.0 or 4.0 (using 
> https://commons.wikimedia.org/wiki/Special:UploadWizard )
>
> Is this a problem?

No. The Creative Commons share-alike licenses contain an upgrade clause 
(4.b of version 2.0) which allows you to CC BY-SA 2.0 content under "a 
later version of this License with the same License Elements as this 
License", i.e. CC BY-SA 2.5, 3.0 or 4.0.