Development of Creative Commons licenses

[Henri Sivonen <hsivonen AT iki.fi>]

It seem problematic that the CC licenses do not contain a license 
version update clause (like the ones in GPL and MPL) and don't say 
anything about the compatibility of the localized licenses.

It seems to me the localized versions of BY-SA are all incompatible in 
the sense that you cannot combine a work under eg. the Finnish BY-SA 
license and a work under the Dutch BY-SA license. Also, if Alice writes 
a work in Finnish and licenses it under a Finnish version of BY-SA and 
Bob translates the work into French, it seems to me that Bob has to use 
the license intended for the Finnish jurisdiction which is written in 
Finnish and is unlikely to be understood by the recipients of of the 
French translation of the work. Is this really the case?

It seems to me that works licensed under SA 1.0 or BY-SA 1.0 are 
incompatible with works licensed under BY-SA 2.0. Is it so?

What happens to the works licensed under the 2.0 licenses if/when CC 
releases new revisions of licenses?

--
Henri Sivonen
hsivonen AT iki.fi
http://hsivonen.iki.fi/