In message cdbks0$qar$1@sea.gmane.org, Timwi timwi@gmx.net writes
Someone just checked in a software change that will allow sysops to customise the names of months and weekdays via pages in the MediaWiki namespace, just like most other things in the user interface. When this change goes live on the site, you will see the month and weekdays names change into English (I believe). Please do not panic when that happens.
Please create pages called [[MediaWiki:January]] etc. and [[MediaWiki:Sunday]] etc. in your local Wikipedia and translate the months/weekdays names appropriately.
Will it screw things up if we create these in advance of your software change?
While I'm on the subject of local language versions, I posted a query to Wikitech-l last week about who, if anyone, monitors and applies requested changes to the LanguageXX.php files, requested via [[meta:Requests for languageXX.php update]] and [[meta:Language files to be updated]] and got no reply at all --- there are requests on there that go back to last March and there is no indication that any of them have been actioned.
It's frustrating to those of us who are trying to keep our user interfaces and magic words reasonably grammatical to go to the trouble of updating these huge files and then we find that the developers have gone and released another version of their own, which we then have to keep our files in synchronisation with.