Peter Ansell schreef:
It may be deemed to be intentionally misleading to unilaterally change the set of allowed license versions without making it clear that some contributions *and their future modifications* are clearly allowed to be downloaded under version 1.1 as wikipedia is not given copyright owner status in order to modify this clause.
This is not true. If person A licenses his text as "GFDL 1.1 or later", person B is allowed to accept that text under the terms of GFDL 1.2, and to modify it, and to release his modified version under GFDL 1.2.
Person A cannot force person B to release the modified text under all of the licenses that person A released his versions under. Otherwise, dual licensing would add restrictions; not create more options for downstream users.
Eugene