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Reader Experiments: Deploy extension to production Arabic, Vietnamese, French, Chinese, Indonesian Wikipedia
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Description

NOTE: Week of Oct 14

Deploy to Arabic, Vietnamese, French, Chinese, Indonesian wikis

Look at https://gerrit.wikimedia.org/r/c/operations/mediawiki-config/+/1189288 for reference.

We need to change the value from false to true for the participating wikis above.

Open question: does this change need to be backported?

  • Backport the change to Mediawiki config so that we can go live this week
  • Ensure that the latest branches contain all the necessary code (deploy a series of patches or one squashed patch) and latest bugfixes

QA

Test links:
https://fr.wikipedia.org/wiki/Paris?imageBrowsing=1&useskin=minerva&useformat=mobile
https://vi.wikipedia.org/wiki/Paris?imageBrowsing=1&useskin=minerva&useformat=mobile

Event Timeline

egardner triaged this task as High priority.Oct 9 2025, 6:26 PM
Jdlrobson-WMF set the point value for this task to 3.Oct 14 2025, 4:49 PM

Change #1196166 had a related patch set uploaded (by Kimberly Sarabia; author: Kimberly Sarabia):

[operations/mediawiki-config@master] Set reader experiment to true

https://gerrit.wikimedia.org/r/1196166

Change #1196166 merged by jenkins-bot:

[operations/mediawiki-config@master] Set reader experiment to true

https://gerrit.wikimedia.org/r/1196166

Mentioned in SAL (#wikimedia-operations) [2025-10-14T21:32:12Z] <ladsgroup@deploy2002> Started scap sync-world: Backport for [[gerrit:1196166|Set reader experiment to true (T406916)]]

Mentioned in SAL (#wikimedia-operations) [2025-10-14T21:34:36Z] <ladsgroup@deploy2002> ksarabia, ladsgroup: Backport for [[gerrit:1196166|Set reader experiment to true (T406916)]] synced to the testservers (see https://wikitech.wikimedia.org/wiki/Mwdebug). Changes can now be verified there.

Mentioned in SAL (#wikimedia-operations) [2025-10-14T21:43:38Z] <ladsgroup@deploy2002> Finished scap sync-world: Backport for [[gerrit:1196166|Set reader experiment to true (T406916)]] (duration: 11m 26s)

At this point, should I be able to trigger the ImageBrowsing UI on one of the participating wikis (assuming I am on Minerva and use the ?imageBrowsing=1 URL param)?

I tried that here: https://vi.wikipedia.org/wiki/Paris?imageBrowsing=1&useskin=minerva, but so far I don't see any change.

Change #1196192 had a related patch set uploaded (by Kimberly Sarabia; author: Kimberly Sarabia):

[operations/mediawiki-config@master] Add reader exp to common settings

https://gerrit.wikimedia.org/r/1196192

Change #1196192 merged by jenkins-bot:

[operations/mediawiki-config@master] Add reader exp to common settings

https://gerrit.wikimedia.org/r/1196192

Mentioned in SAL (#wikimedia-operations) [2025-10-15T20:27:10Z] <cjming@deploy2002> Started scap sync-world: Backport for [[gerrit:1196192|Add reader exp to common settings (T406916)]]

Mentioned in SAL (#wikimedia-operations) [2025-10-15T20:29:34Z] <cjming@deploy2002> ksarabia, cjming: Backport for [[gerrit:1196192|Add reader exp to common settings (T406916)]] synced to the testservers (see https://wikitech.wikimedia.org/wiki/Mwdebug). Changes can now be verified there.

Mentioned in SAL (#wikimedia-operations) [2025-10-15T20:41:01Z] <cjming@deploy2002> Finished scap sync-world: Backport for [[gerrit:1196192|Add reader exp to common settings (T406916)]] (duration: 13m 51s)