User:Champion/Wikimedia language code

A Wikimedia language code is a language code to identify a language specific edition of a Wikimedia project. It is commonly used as a subdomain, e.g. for the Wikipedia editions it is a subdomain below wikipedia.org. Interlanguage links in the English Wikipedia are sorted by that code.

The codes mostly correspond to the language codes defined by ISO 639-1 and ISO 639-3, and the decision of which language code to use is mostly in accordance with the IETF language tag policy.

One code is not a language code ('be-x-old') but refers to a specific orthography.

Internal code changes
The following codes have been changed for the mark-up :
 * bat-smg -> sgs (wikipedia)
 * fiu-vro -> vro (wikipedia)
 * zh-classical -> lzh (wikipedia)
 * zh-min-nan -> nan (wikipedia, wiktionary, wikibooks, wikiquote, wikisource)
 * zh-yue -> yue (wikipedia)
 * be-x-old -> be-tarask (wikipedia)
 * als -> gsw (wikipedia, wiktionary, wikibooks, wikiquote)
 * roa-rup -> rup (wikipedia, wiktionary)

Redirects

 * 'dk' redirects to 'da'

Project specific codes
Wiktionary uses further codes to represent content.