On September 13 2021, all traffic from all wikis will be switched back to the primary data center (first switch happened last June). All wikis will be in read-only mode on September 13 around 14:00 UTC. A message to inform our communities has been written, to be sent to wikis: https://meta.wikimedia.org/wiki/Tech/Server_switchPlease check the translations and update them when needed. Work should be limited, since only dates have been changed. https://meta.wikimedia.org/w/index.php?title=Special:Translate&group=page-Tech%2FServer+switch&language=&action=page&filter=
More information will be published in Tech News and will also be posted on individual wikis.
Please inform your communities about this event!
Thank you for your help,Benoît--