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Deploy Parsoid Read Views to MobileFrontEnd readers on enwiki
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Description

Background Information

This is the next batch of wikis deployed as part of Parser Unification

This is a mobile-only deployment to enwiki.

Announcements:

  • enwiki

Initial Evaluation

  • Prepare the sample to run the visualdiff test
  • Run/evaluate the visualdiff test
  • Choose target wikis for this week's deploy
  • Create a Confidence Report based on the results

Bug fixes

Based on initial visualdiff testing, these are tasks which affect Parsoid Read Views on these target wikis

  • Update ParserMigration to allow independent deploy to mobile viewers
  • Update mediawiki-config to allow independent deploy to mobile viewers

Notify wikipedias about upcoming Parsoid Read Views roll-out

Deployment

  • Write mediawiki-config patches for rollout
    • this will be an incremental rollout
  • Deploy mediawiki-config patches

Post-deploy

  • Monitor talk pages and mailing lists above for any follow up work needed
  • Follow up work:
    • Bump incremental rollout until we reach 100

Event Timeline

Change #1267442 had a related patch set uploaded (by C. Scott Ananian; author: C. Scott Ananian):

[mediawiki/extensions/ParserMigration@master] Transition to new configuration variables

https://gerrit.wikimedia.org/r/1267442

Change #1267439 had a related patch set uploaded (by C. Scott Ananian; author: C. Scott Ananian):

[operations/mediawiki-config@master] ParserMigration: transition to new configuration variables

https://gerrit.wikimedia.org/r/1267439

Change #1267439 merged by jenkins-bot:

[operations/mediawiki-config@master] ParserMigration: transition to new configuration variables

https://gerrit.wikimedia.org/r/1267439

Mentioned in SAL (#wikimedia-operations) [2026-04-07T21:43:13Z] <cscott@deploy1003> Started scap sync-world: Backport for [[gerrit:1267439|ParserMigration: transition to new configuration variables (T422543)]], [[gerrit:1265467|Enable legacy post-processing cache for DiscussionTools (T376183)]]

Mentioned in SAL (#wikimedia-operations) [2026-04-07T21:45:03Z] <cscott@deploy1003> ihurbain, cscott: Backport for [[gerrit:1267439|ParserMigration: transition to new configuration variables (T422543)]], [[gerrit:1265467|Enable legacy post-processing cache for DiscussionTools (T376183)]] synced to the testservers (see https://wikitech.wikimedia.org/wiki/Mwdebug). Changes can now be verified there.

Mentioned in SAL (#wikimedia-operations) [2026-04-07T21:50:53Z] <cscott@deploy1003> Finished scap sync-world: Backport for [[gerrit:1267439|ParserMigration: transition to new configuration variables (T422543)]], [[gerrit:1265467|Enable legacy post-processing cache for DiscussionTools (T376183)]] (duration: 07m 40s)

Change #1267442 merged by jenkins-bot:

[mediawiki/extensions/ParserMigration@master] Transition to new configuration variables

https://gerrit.wikimedia.org/r/1267442