Misspelt word in date format
Yes, so far as I can see. I am not very familiar with this kind of changes in MediaWiki, so thanks!
Thanks. When will this go live on, say, http://zh-min-nan.wikipedia.org/ ?
It will be in 1.20wmf13: http://www.mediawiki.org/wiki/MediaWiki_1.20/Roadmap so about ten days from now.
Seems deployed here, but somehow still not live yet. http://www.mediawiki.org/wiki/MediaWiki_1.21/wmf1#Core_changes
Please have a look at https://github.com/wikimedia/mediawiki-core/blob/master/languages/messages/MessagesNan.php and check that the format is actually correct. If it is, but you are seeing something different somewhere else, please give exact links and screenshots if possible.
No, it is not correct there. The correct one is in the new version here: https://gerrit.wikimedia.org/r/#/c/23868/1/languages/messages/MessagesNan.php
Screenshot of currently deployed Wikipedia: http://www.webcitation.org/6Cnq3wCot