Wikibase World https://wikibase.world is a successor to the Wikibase Registry built on Wikibase.Cloud. This means it will continue to receive software updates from Wikimedia Deutschland, whereas Wikibase Registry is a one-off on Cloud VPS that requires continuous maintenance.

All relevant data has been migrated over to Wikibase World and is ready to use. Only thing left to do is to start to phase out Wikibase Registry, first by disabling editing and then ultimately taking the site offline.