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Maniphest T423910

1.47.0-wmf.1 deployment blockers
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Backup Train Conductor
jeena
Release Version
1.47.0-wmf.1
Release Date
May 4 2026, 12:00 AM

2026 week 19 1.47-wmf.1 Changes wmf/1.47.0-wmf.1

This MediaWiki Train Deployment is scheduled for the week of Monday, May 4th:

Monday May 4thTuesday, May 5thWednesday, May 6thThursday, May 7thFriday
Backports only.Branch wmf.1 and deploy to Group 0 Wikis.Deploy wmf.1 to Group 1 Wikis.Deploy wmf.1 to all Wikis.No deployments on fridays

How this works

  • Any serious bugs affecting wmf.1 should be added as subtasks beneath this one.
  • Any open subtask(s) block the train from moving forward. This means no further deployments until the blockers are resolved.
  • If something is serious enough to warrant a rollback then you should bring it to the attention of deployers on the #wikimedia-operations IRC channel.
  • If you have a risky change in this week's train add a comment to this task using the Risky patch template
  • For more info about deployment blockers, see Holding the train.

Related Links

Other Deployments

Previous: 1.46.0-wmf.26
Next: 1.47.0-wmf.2
Related Changes in Gerrit:
SubjectAuthorRepoBranchLines +/-
group2 to 1.47.0-wmf.1TrainBranchBotoperations/mediawiki-configmaster+343 -343
group1 to 1.47.0-wmf.1TrainBranchBotoperations/mediawiki-configmaster+562 -562
group0 to 1.47.0-wmf.1TrainBranchBotoperations/mediawiki-configmaster+160 -160
testwikis to 1.47.0-wmf.1TrainBranchBotoperations/mediawiki-configmaster+3 -3
Branch commit for wmf/1.47.0-wmf.1TrainBranchBotmediawiki/corewmf/1.47.0-wmf.1+1 K -3
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Event Timeline

thcipriani created this task.Apr 20 2026, 4:33 PM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptApr 20 2026, 4:33 PM
thcipriani assigned this task to brennen.Apr 24 2026, 8:13 PM
thcipriani triaged this task as Medium priority.
thcipriani updated Other Assignee, added: jeena.
thcipriani set the point value for this task to 5.
thcipriani added projects: Release-Engineering-Team (Priority Backlog 📥), Essential-Work.
SomeRandomDeveloper subscribed.May 1 2026, 8:04 PM
gerritbot added a comment.May 5 2026, 1:09 AM

Change #1282439 had a related patch set uploaded (by TrainBranchBot; author: trainbranchbot):

[mediawiki/core@wmf/1.47.0-wmf.1] Branch commit for wmf/1.47.0-wmf.1

https://gerrit.wikimedia.org/r/1282439

gerritbot added a project: Patch-For-Review.May 5 2026, 1:09 AM
thcipriani added a subtask: T425064: api-testing, wiki.js line 53, AssertionError: Text: : expected undefined to not equal undefined.May 5 2026, 2:03 AM
gerritbot added a comment.May 5 2026, 7:38 AM

Change #1282439 merged by jenkins-bot:

[mediawiki/core@wmf/1.47.0-wmf.1] Branch commit for wmf/1.47.0-wmf.1

https://gerrit.wikimedia.org/r/1282439

Maintenance_bot removed a project: Patch-For-Review.May 5 2026, 8:31 AM
ihurbain added a subtask: T425401: Backports currently impossible on the wmf/1.46 branch.May 5 2026, 9:28 AM
thcipriani removed a subtask: T425064: api-testing, wiki.js line 53, AssertionError: Text: : expected undefined to not equal undefined.May 5 2026, 2:16 PM
Jdforrester-WMF added a subtask: T425425: mediawiki.product_metrics.contributors.experiments should NOT have additional properties.May 5 2026, 2:33 PM
Jdforrester-WMF closed subtask T425401: Backports currently impossible on the wmf/1.46 branch as Resolved.May 5 2026, 2:36 PM
brennen removed a subtask: T425425: mediawiki.product_metrics.contributors.experiments should NOT have additional properties.May 5 2026, 6:04 PM
Stashbot added a comment.May 5 2026, 6:06 PM

Mentioned in SAL (#wikimedia-operations) [2026-05-05T18:06:17Z] <brennen> 1.47.0-wmf.1 train status (T423910): no current blockers, rolling to group0

gerritbot added a comment.May 5 2026, 6:09 PM

Change #1283062 had a related patch set uploaded (by TrainBranchBot; author: SpiderPig jobrunner/apiserver):

[operations/mediawiki-config@master] testwikis to 1.47.0-wmf.1

https://gerrit.wikimedia.org/r/1283062

gerritbot added a project: Patch-For-Review.May 5 2026, 6:09 PM

Change #1283062 merged by jenkins-bot:

[operations/mediawiki-config@master] testwikis to 1.47.0-wmf.1

https://gerrit.wikimedia.org/r/1283062

Stashbot added a comment.May 5 2026, 6:11 PM

Mentioned in SAL (#wikimedia-operations) [2026-05-05T18:11:32Z] <brennen@deploy1003> Started scap sync-world: testwikis to 1.47.0-wmf.1 refs T423910

Maintenance_bot removed a project: Patch-For-Review.May 5 2026, 6:30 PM
Stashbot added a comment.May 5 2026, 6:47 PM

Mentioned in SAL (#wikimedia-operations) [2026-05-05T18:47:36Z] <brennen@deploy1003> Finished scap sync-world: testwikis to 1.47.0-wmf.1 refs T423910 (duration: 36m 04s)

gerritbot added a comment.May 5 2026, 7:07 PM

Change #1283065 had a related patch set uploaded (by TrainBranchBot; author: SpiderPig jobrunner/apiserver):

[operations/mediawiki-config@master] group0 to 1.47.0-wmf.1

https://gerrit.wikimedia.org/r/1283065

gerritbot added a project: Patch-For-Review.May 5 2026, 7:07 PM

Change #1283065 merged by jenkins-bot:

[operations/mediawiki-config@master] group0 to 1.47.0-wmf.1

https://gerrit.wikimedia.org/r/1283065

Stashbot added a comment.May 5 2026, 7:14 PM

Mentioned in SAL (#wikimedia-operations) [2026-05-05T19:14:56Z] <brennen@deploy1003> rebuilt and synchronized wikiversions files: group0 to 1.47.0-wmf.1 refs T423910

brennen mentioned this in T425475: EventContribution: Wikimedia\Rdbms\DBQueryError: Error 1054: Unknown column 'cec.cec_references_delta' in 'SELECT'.May 5 2026, 7:20 PM
brennen added a subtask: T425475: EventContribution: Wikimedia\Rdbms\DBQueryError: Error 1054: Unknown column 'cec.cec_references_delta' in 'SELECT'.
Maintenance_bot removed a project: Patch-For-Review.May 5 2026, 7:31 PM
brennen closed subtask T425475: EventContribution: Wikimedia\Rdbms\DBQueryError: Error 1054: Unknown column 'cec.cec_references_delta' in 'SELECT' as Resolved.May 6 2026, 6:29 PM
Stashbot added a comment.May 6 2026, 6:32 PM

Mentioned in SAL (#wikimedia-operations) [2026-05-06T18:32:58Z] <brennen> 1.47.0-wmf.1 train status (T423910): blockers resolved, rolling to group1

gerritbot added a comment.May 6 2026, 6:34 PM

Change #1283873 had a related patch set uploaded (by TrainBranchBot; author: SpiderPig jobrunner/apiserver):

[operations/mediawiki-config@master] group1 to 1.47.0-wmf.1

https://gerrit.wikimedia.org/r/1283873

gerritbot added a project: Patch-For-Review.May 6 2026, 6:34 PM
gerritbot added a comment.May 6 2026, 6:36 PM

Change #1283873 merged by jenkins-bot:

[operations/mediawiki-config@master] group1 to 1.47.0-wmf.1

https://gerrit.wikimedia.org/r/1283873

Stashbot added a comment.May 6 2026, 6:42 PM

Mentioned in SAL (#wikimedia-operations) [2026-05-06T18:42:50Z] <brennen@deploy1003> rebuilt and synchronized wikiversions files: group1 to 1.47.0-wmf.1 refs T423910

Maintenance_bot removed a project: Patch-For-Review.May 6 2026, 7:31 PM
Jdlrobson-WMF added a subtask: T425591: TypeError: undefined is not an object (evaluating 'entry.serverTiming.forEach').May 6 2026, 9:13 PM
Jdlrobson-WMF subscribed.

The logspam for T425591: TypeError: undefined is not an object (evaluating 'entry.serverTiming.forEach') will be problematic when the train hits group 2 so added as deployment blocker (https://wikitech.wikimedia.org/wiki/Deployments/Holding_the_train#Error-rate_increases_(See_#Logspam))

TheDJ subscribed.EditedMay 7 2026, 7:57 AM

Someone also might want to backport Ic2f17ad4b72896e6ac7521f3a73f111f927fcd90
We accidentally broke the 3D viewer again, because we keep forgetting it does special stuff with the mediaviewer.

cherry pick here: https://gerrit.wikimedia.org/r/c/mediawiki/extensions/3D/+/1284547

Test: https://commons.wikimedia.org/wiki/File:High_quality_skull.stl#/media/File:High_quality_skull.stl

phuedx closed subtask T425591: TypeError: undefined is not an object (evaluating 'entry.serverTiming.forEach') as Resolved.May 7 2026, 8:48 AM
Stashbot added a comment.May 7 2026, 6:02 PM

Mentioned in SAL (#wikimedia-operations) [2026-05-07T18:02:08Z] <brennen> 1.47.0-wmf.1 train status (T423910): blockers resolved, rolling to all wikis

brennen added a comment.May 7 2026, 6:03 PM

Someone also might want to backport Ic2f17a

Noting this has been handled.

gerritbot added a comment.May 7 2026, 6:05 PM

Change #1284768 had a related patch set uploaded (by TrainBranchBot; author: SpiderPig jobrunner/apiserver):

[operations/mediawiki-config@master] group2 to 1.47.0-wmf.1

https://gerrit.wikimedia.org/r/1284768

gerritbot added a project: Patch-For-Review.May 7 2026, 6:05 PM

Change #1284768 merged by jenkins-bot:

[operations/mediawiki-config@master] group2 to 1.47.0-wmf.1

https://gerrit.wikimedia.org/r/1284768

Stashbot added a comment.May 7 2026, 6:17 PM

Mentioned in SAL (#wikimedia-operations) [2026-05-07T18:17:16Z] <brennen@deploy1003> rebuilt and synchronized wikiversions files: group2 to 1.47.0-wmf.1 refs T423910

Maintenance_bot removed a project: Patch-For-Review.May 7 2026, 6:30 PM
cscott mentioned this in T425731: CTT tasks week of 2026-05-01.May 7 2026, 7:39 PM
brennen mentioned this in T425742: ArticleGuidance: TypeError: str_contains(): Argument #1 ($haystack) must be of type string, null given.May 7 2026, 8:53 PM
brennen closed this task as Resolved.May 7 2026, 10:11 PM

Seems stable at all wikis.

End-of-train notes: Just based on logspam-watch, logs are fairly noisy right now. We could probably use a bit of a push on log triage and cleanup.

mahmoud.abdelsattar.wmde added a subtask: T425782: [Core][BUG] Need to set language before accessing.May 8 2026, 2:43 PM
Lucas_Werkmeister_WMDE removed a subtask: T425782: [Core][BUG] Need to set language before accessing.May 8 2026, 2:48 PM
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