So... "simple" is now a standard IETF subtag: http://www.iana.org/assignments/language-subtag-registry/language-subtag-registry

It became one thanks to this bug.

And this means that "en-simple" is now a standard language code, and en-simple can be defined as the language code of the Simple English Wikipedia, and the domain can be renamed to en-simple.wikipedia.org, as far as standards go.

Added some sysops, I'd love to get their opinions.

Let us know if this comes to fruition - and we'll do what is needed at that time. I've moved it to our later column.

I took part in the discussion to standardize the -simple subtag and would love to see more adoption. Wikipedia could be an important step e.g. to get assitive technology vendors to add support. So I would very much like to see this issue fixed. Is there anything I can do to help?

I guess $wgExtraLanguageCodes in DefaultSettings.php would have to be changed to map "simple" to "en-simple". What would be the exact consequences of this change? What else is needed?

Thank you!

There's currently a technical blocker that prevents domain renaming. It has a lot to do with the Wikidata project, and it's not trivial. Once it's resolved, Simple English Wikipedia will probably be among the first to be renamed.

As far as I understand, this ticket is about changing the lang attribute. Changing the subdomain is a separate task, isn't it?

Mmmm... Maybe it could be considered, although I'd be cautious.

@Amire80:

Once it's resolved, Simple English Wikipedia will probably be among the first to be renamed.

I doubt if you just decided so, because in Proposals for closing projects/Closure of Simple English Wikipedia (3) many users are providing their opinions to merge this Wikipedia back to enwiki.

It would be nice if it were folded into en.wp for many reasons but I think there is simply too much inertia for that to happen. This task should assume that the third proposal to close it will fail like the first two.

Just a quick comment,
Simple English ('Simple') is the only simplified language version running under that name.
For German there are a few initiatives 'Einfaches Deutsch/Vereinfachtes Deutsch' or similar; they mainly target the problem of 'functional analphebetism' though, and to my knowledge, none has reached a status where a 'Wikipedia Version' could be created.
There were 3 simplified versions used in the German colonies ('Kolonialdeutch', 'Weltdeutsch', and 'Unserdeusch'; the first two are planned languages, like Esperanto, that never caught on, the last one is essentially Tok Pisin with a German vocabulary - there are less than 500 speakers worldwide, most live in Australia).
In short - none of the German versions lend themselves to creating a wikipedia.
French -I think there are two attempts at creating a Simple French Wikipedia, but both stalled.

As to ISO code: It is unlikely we get a language variant (with an ISO 631-2, or ISO-631-3,or ISO 3166 code). Normally such codes have at least some geographic component 'en-US', 'en-BZ' (Belize, if it exists), 'EN-HK' (Hong Kong), 'en-ZA' (South Africa)..

So, I currently see no need to rename Simple English to anything else.

And as to closing: Yes, Simple English is a small wiki, but it also has a community of supporting editors; there have been several proposals to close SEWP; they all failed.

-simple is not part of any ISO standard, but of BCP 47 https://tools.ietf.org/html/bcp47

Change 884942 had a related patch set uploaded (by Winston Sung; author: Winston Sung):

[mediawiki/core@master] Fix HTML output BCP 47 language code for en-simple

https://gerrit.wikimedia.org/r/884942

Change 884943 had a related patch set uploaded (by Winston Sung; author: Winston Sung):

[mediawiki/extensions/ContentTranslation@master] ContentTranslation: Map language code "en-simple" to subdomain "simple"

https://gerrit.wikimedia.org/r/884943

Change 885306 had a related patch set uploaded (by Winston Sung; author: Winston Sung):

[mediawiki/extensions/Babel@master] Babel: Use BCP 47 language code "en-simple" instead for the MediaWiki internal language code "simple"

https://gerrit.wikimedia.org/r/885306

Change 885307 had a related patch set uploaded (by Winston Sung; author: Winston Sung):

[mediawiki/extensions/Babel@master] Babel: Temporarily disable tests for MediaWiki internal language code "simple"

https://gerrit.wikimedia.org/r/885307

Change 884945 had a related patch set uploaded (by Winston Sung; author: Winston Sung):

[mediawiki/extensions/ExternalGuidance@master] ExternalGuidance: Map language code "en-simple" to subdomain "simple"

https://gerrit.wikimedia.org/r/884945

Change 884944 had a related patch set uploaded (by Winston Sung; author: Winston Sung):

[mediawiki/services/cxserver@master] cxserver: Map language code "en-simple" to subdomain "simple"

https://gerrit.wikimedia.org/r/884944

Change 884945 merged by jenkins-bot:

[mediawiki/extensions/ExternalGuidance@master] ExternalGuidance: Map language code "en-simple" to subdomain "simple"

https://gerrit.wikimedia.org/r/884945

Change 884944 merged by jenkins-bot:

[mediawiki/services/cxserver@master] cxserver: Map language code "en-simple" to subdomain "simple"

https://gerrit.wikimedia.org/r/884944

Change 884943 merged by jenkins-bot:

[mediawiki/extensions/ContentTranslation@master] ContentTranslation: Map language code "en-simple" to subdomain "simple"

https://gerrit.wikimedia.org/r/884943

Change 889483 had a related patch set uploaded (by KartikMistry; author: KartikMistry):

[operations/deployment-charts@master] Update cxserver to 2023-02-15-085109-production

https://gerrit.wikimedia.org/r/889483

Change 889483 merged by jenkins-bot:

[operations/deployment-charts@master] Update cxserver to 2023-02-15-085109-production

https://gerrit.wikimedia.org/r/889483

Mentioned in SAL (#wikimedia-operations) [2023-02-16T06:15:59Z] <kart_> Updated cxserver to 2023-02-15-085109-production (T328310, T110190, T116466)

Seems BCP47 also offers "en-basiceng". Has this tag been considered over the usage of "en-simple"?

In addition, currently when viewing the simple wikipedia. The lang attribute in the HTML always just gives "en". Instead of "en-simple" or "en-basiceng". I assume this was unintended and is yet to be changed?