A maintenance operation will affect how categories are sorted on 149 wikis. We plan to send a message to affected communities this Friday. 

Deadline for translations is on Friday early morning UTC.

Direct translation link:
https://www.mediawiki.org/w/index.php?title=Special:Translate&group=page-Wikimedia+Technical+Operations%2FICU+announcement&language=&action=page&filter=

The message with more context: 
https://www.mediawiki.org/wiki/Wikimedia_Technical_Operations/ICU_announcement

Thank you,
Benoît

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Benoît Evellin - Trizek (he/him)

Community Relations Specialist

Wikimedia Foundation