Status	Assigned	Task
In Progress	None	T413223 Migrate Wikimedia production from PHP 8.3 to PHP 8.5
Resolved	Jdforrester-WMF	T411814 Make PHP 8.5 voting on development (master) branch of MW ecosystem (core, vendor, extensions, skins, libraries) in CI
Resolved	Jdforrester-WMF	T419070 Ensure that all Wikimedia-deployed code passes PHP 8.5 CI
Resolved	neriah	T419069 PHP 8.5 CI failure in CirrusSearch: "Using null as an array offset is deprecated, use an empty string instead"
Resolved	neriah	T419085 PHP 8.5 CI failure in Flow: "Using null as an array offset is deprecated, use an empty string instead"
Resolved	Jdforrester-WMF	T419087 PHP 8.5 CI failure in GrowthExperiments: "Using null as an array offset is deprecated, use an empty string instead"
Resolved	neriah	T419086 PHP 8.5 CI failure in ImageSuggestions: "Using null as an array offset is deprecated, use an empty string instead"
Resolved	Jdforrester-WMF	T419088 PHP 8.5 CI failure in Kartographer: "Using null as an array offset is deprecated, use an empty string instead"
Resolved	neriah	T419071 PHP 8.5 CI failure in ORES: "Using null as an array offset is deprecated, use an empty string instead"
Resolved	neriah	T419072 PHP 8.5 CI failure in SecurePoll: "Using null as an array offset is deprecated, use an empty string instead"
Resolved	neriah	T419068 PHP 8.5 CI failure in Translate: "Using null as an array offset is deprecated, use an empty string instead"
Resolved	ABreault-WMF	T419090 PHP 8.5 CI failure in Parsoid: "Using null as an array offset is deprecated, use an empty string instead"
Resolved	neriah	T420260 PHP 8.5 CI failure in Wikibase: "Using null as an array offset is deprecated, use an empty string instead"
Resolved	Jdforrester-WMF	T420261 PHP 8.5 CI failure in WikibaseCirrusSearch: "Increment on non-numeric string is deprecated, use str_increment() instead"
Resolved	Jdforrester-WMF	T420262 PHP 8.5 CI failure in WikibaseMediaInfo: "Using null as an array offset is deprecated, use an empty string instead"
Resolved	Lucas_Werkmeister_WMDE	T423185 PHP 8.5 CI failure in Wikibase: additional null-as-array-offset/key deprecations
Resolved	aude	T424259 ReadingLists tests are failing on Jenkins in `quibble-vendor-mysql-php85`

Event Timeline

Jdforrester-WMF created this task.Mar 4 2026, 9:23 PM

Jdforrester-WMF moved this task from Backlog to Wikimedia production on the PHP 8.5 support board.Mar 4 2026, 10:39 PM

Jdforrester-WMF updated the task description. (Show Details)Mar 4 2026, 10:53 PM

neriah changed the status of subtask T419072: PHP 8.5 CI failure in SecurePoll: "Using null as an array offset is deprecated, use an empty string instead" from Open to In Progress.Mar 5 2026, 2:40 PM

neriah subscribed.Mar 5 2026, 2:47 PM

neriah changed the status of subtask T419069: PHP 8.5 CI failure in CirrusSearch: "Using null as an array offset is deprecated, use an empty string instead" from Open to In Progress.Mar 5 2026, 3:02 PM

neriah changed the status of subtask T419085: PHP 8.5 CI failure in Flow: "Using null as an array offset is deprecated, use an empty string instead" from Open to In Progress.Mar 6 2026, 2:19 PM

Jdforrester-WMF closed subtask T419085: PHP 8.5 CI failure in Flow: "Using null as an array offset is deprecated, use an empty string instead" as Resolved.Mar 6 2026, 2:30 PM

Jdforrester-WMF closed subtask T419069: PHP 8.5 CI failure in CirrusSearch: "Using null as an array offset is deprecated, use an empty string instead" as Resolved.

neriah updated the task description. (Show Details)Mar 6 2026, 2:32 PM

Jdforrester-WMF changed the status of subtask T419090: PHP 8.5 CI failure in Parsoid: "Using null as an array offset is deprecated, use an empty string instead" from Open to In Progress.Mar 6 2026, 2:37 PM

Jdforrester-WMF changed the status of subtask T419088: PHP 8.5 CI failure in Kartographer: "Using null as an array offset is deprecated, use an empty string instead" from Open to In Progress.

neriah changed the status of subtask T419086: PHP 8.5 CI failure in ImageSuggestions: "Using null as an array offset is deprecated, use an empty string instead" from Open to In Progress.Mar 8 2026, 6:10 PM

neriah changed the status of subtask T419071: PHP 8.5 CI failure in ORES: "Using null as an array offset is deprecated, use an empty string instead" from Open to In Progress.Mar 8 2026, 8:33 PM

Jdforrester-WMF closed subtask T419086: PHP 8.5 CI failure in ImageSuggestions: "Using null as an array offset is deprecated, use an empty string instead" as Resolved.Mar 9 2026, 1:36 PM

Jdforrester-WMF closed subtask T419071: PHP 8.5 CI failure in ORES: "Using null as an array offset is deprecated, use an empty string instead" as Resolved.

Jdforrester-WMF updated the task description. (Show Details)

Jdforrester-WMF closed subtask T419090: PHP 8.5 CI failure in Parsoid: "Using null as an array offset is deprecated, use an empty string instead" as Resolved.Mar 9 2026, 5:58 PM

Jdforrester-WMF changed the status of subtask T419087: PHP 8.5 CI failure in GrowthExperiments: "Using null as an array offset is deprecated, use an empty string instead" from Open to In Progress.Mar 10 2026, 10:22 PM

Jdforrester-WMF closed subtask T419088: PHP 8.5 CI failure in Kartographer: "Using null as an array offset is deprecated, use an empty string instead" as Resolved.Mar 11 2026, 1:43 PM

Jdforrester-WMF updated the task description. (Show Details)

Jdforrester-WMF closed subtask T419087: PHP 8.5 CI failure in GrowthExperiments: "Using null as an array offset is deprecated, use an empty string instead" as Resolved.Mar 11 2026, 4:26 PM

Jdforrester-WMF updated the task description. (Show Details)

Jdforrester-WMF updated the task description. (Show Details)Mar 11 2026, 5:30 PM

neriah changed the status of subtask T419068: PHP 8.5 CI failure in Translate: "Using null as an array offset is deprecated, use an empty string instead" from Open to In Progress.Mar 16 2026, 1:58 PM

neriah updated the task description. (Show Details)Mar 16 2026, 5:43 PM

Jdforrester-WMF closed subtask T419068: PHP 8.5 CI failure in Translate: "Using null as an array offset is deprecated, use an empty string instead" as Resolved.Mar 16 2026, 6:19 PM

Jdforrester-WMF created subtask T420260: PHP 8.5 CI failure in Wikibase: "Using null as an array offset is deprecated, use an empty string instead".Mar 16 2026, 6:47 PM

Jdforrester-WMF created subtask T420261: PHP 8.5 CI failure in WikibaseCirrusSearch: "Increment on non-numeric string is deprecated, use str_increment() instead".

Jdforrester-WMF created subtask T420262: PHP 8.5 CI failure in WikibaseMediaInfo: "Using null as an array offset is deprecated, use an empty string instead".

neriah updated the task description. (Show Details)Mar 16 2026, 6:49 PM

Jdforrester-WMF updated the task description. (Show Details)Mar 16 2026, 6:50 PM

Jdforrester-WMF changed the status of subtask T420261: PHP 8.5 CI failure in WikibaseCirrusSearch: "Increment on non-numeric string is deprecated, use str_increment() instead" from Open to In Progress.Mar 16 2026, 6:55 PM

neriah changed the status of subtask T420260: PHP 8.5 CI failure in Wikibase: "Using null as an array offset is deprecated, use an empty string instead" from Open to In Progress.Mar 16 2026, 8:00 PM

Jdforrester-WMF closed subtask T420261: PHP 8.5 CI failure in WikibaseCirrusSearch: "Increment on non-numeric string is deprecated, use str_increment() instead" as Resolved.Mar 18 2026, 2:02 AM

Jdforrester-WMF updated the task description. (Show Details)

Jdforrester-WMF changed the status of subtask T420262: PHP 8.5 CI failure in WikibaseMediaInfo: "Using null as an array offset is deprecated, use an empty string instead" from Open to In Progress.Mar 18 2026, 2:24 AM

neriah claimed this task.Mar 18 2026, 7:45 AM

neriah removed neriah as the assignee of this task.

Jdforrester-WMF closed subtask T420262: PHP 8.5 CI failure in WikibaseMediaInfo: "Using null as an array offset is deprecated, use an empty string instead" as Resolved.Mar 18 2026, 3:04 PM

Jdforrester-WMF updated the task description. (Show Details)

Krinkle mentioned this in T411814: Make PHP 8.5 voting on development (master) branch of MW ecosystem (core, vendor, extensions, skins, libraries) in CI.Mar 24 2026, 6:49 AM

neriah updated the task description. (Show Details)Mar 31 2026, 3:08 PM

neriah closed subtask T420260: PHP 8.5 CI failure in Wikibase: "Using null as an array offset is deprecated, use an empty string instead" as Resolved.Mar 31 2026, 3:11 PM

neriah closed subtask T419072: PHP 8.5 CI failure in SecurePoll: "Using null as an array offset is deprecated, use an empty string instead" as Resolved.Apr 9 2026, 3:17 PM

neriah assigned this task to Jdforrester-WMF.Apr 9 2026, 3:28 PM

neriah updated the task description. (Show Details)

neriah updated Other Assignee, added: neriah.

Nice job resolving all the subtasks. Is this ticket ready to close?

In T419070#11805313, @Novem_Linguae wrote:

Nice job resolving all the subtasks. Is this ticket ready to close?

I'm re-running the check for all production extensions to verify that we didn't regress PHP 8.5 passing in any of them. If they all still pass, yes, this will be Resolved (and I'll throw the switch on T411814 to make it stay that way).

Unfortunately we have some new failures (this is why fixing these very quickly is helpful, as that way we can make CI voting and slam the door on future patches that add more breakages).

Jdforrester-WMF updated the task description. (Show Details)Apr 9 2026, 5:38 PM

Jdforrester-WMF created subtask T423185: PHP 8.5 CI failure in Wikibase: additional null-as-array-offset/key deprecations.Apr 13 2026, 6:26 PM

OK, one is "real" (T423185: PHP 8.5 CI failure in Wikibase: additional null-as-array-offset/key deprecations, including issues in usage of HashSiteStore from MW core itself).

Two are CI config issues: T423186: CI failure for CommunityRequests: Missing dependency on TemplateData? for CommunityRequests, and already-fixed T417706: CI ReadingLists / TestKitchen error - Could not find the registration file for the extension "EventBus" for ReadingLists.

Finally, there are some console warnings like PHP Deprecated: Eris\Generator\IntegerGenerator::__construct(): Implicitly marking parameter $mapFn as nullable is deprecated, the explicit nullable type must be used instead in /workspace/src/vendor/giorgiosironi/eris/src/Generator/IntegerGenerator.php on line 50 in Score and WP25EasterEggs, but I'm not sure they're blocking.

Jdforrester-WMF changed the status of subtask T423185: PHP 8.5 CI failure in Wikibase: additional null-as-array-offset/key deprecations from Open to In Progress.Apr 13 2026, 7:55 PM

Jdforrester-WMF closed subtask T423185: PHP 8.5 CI failure in Wikibase: additional null-as-array-offset/key deprecations as Resolved.Apr 23 2026, 1:40 PM

Jdforrester-WMF closed this task as Resolved.Apr 23 2026, 4:38 PM

Umherirrender added a subtask: T424259: ReadingLists tests are failing on Jenkins in `quibble-vendor-mysql-php85`.Apr 23 2026, 7:46 PM

Reedy closed subtask T424259: ReadingLists tests are failing on Jenkins in `quibble-vendor-mysql-php85` as Resolved.Apr 24 2026, 6:03 PM

Ensure that all Wikimedia-deployed code passes PHP 8.5 CIClosed, ResolvedPublicActions

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Ensure that all Wikimedia-deployed code passes PHP 8.5 CI
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