Most importantly, when changes to an article are made, they become available immediately before undergoing any review, no matter if they contain an error, are somehow misguided, or even patent nonsense. The German and the Hungarian editions of Wikipedia are exceptions to this rule: the German Wikipedia has been testing a system of maintaining "stable versions" of articles, to allow a reader to see versions of articles that have passed certain reviews. The English edition of Wikipedia plans to trial a related approach. In June 2010, it was announced that the English Wikipedia would remove strict editing restrictions from "controversial" or vandalism-prone articles (such as George W. Bush, David Cameron or homework). In place of an editing prohibition for new or unregistered users, there would be a "new system, called 'pending changes'" which, Jimmy Wales told the BBC, would enable the English Wikipedia "to open up articles for general editing that have been protected or semi-protected for years." The "pending changes" system was introduced on June 15, shortly after 11pm GMT. Edits to specified articles are now "subject to review from an established Wikipedia editor before publication." Wales opted against the German Wikipedia model of requiring editor review before edits to any article, describing it as "neither necessary nor desirable." He added that the administrators of the German Wikipedia were "going to be closely watching the English system, and I'm sure they'll at least consider switching if the results are good."