There are some language codes currently supported that we should not support at all. They have to be removed from PHP and JS ContentLanguages.
|Open||None||T124286 [Epic] Wikidata language support|
|Resolved||adrianheine||T124757 [Story] Improve the set of language codes available for monolingual text values|
|Resolved||None||T125063 [Task] Remove universally bad language codes from the set of language codes available for monolingual text values|
- Language codes that are not even well-formed BCP 47 language codes
- tokipona, simple
- Duplicate, deprecated language codes
- roa-rup (=> rup), bat-smg (=> sgs), be-x-old (=> be-tarask), fiu-vro (=> vro), zh-min-nan (=> nan), zh-yue (=> yue), zh-classical (=> lzh)
- Language codes we don't want for semantic reasons
- de-formal, nl-informal
T125073 could be a follow-up.