Hi!
As outlined in https://phabricator.wikimedia.org/T226153, we are planning to change filename scheme for Wikidata RDF entity dumps, by removing the "-BETA" suffix from the filename. The Wikidata RDF ontology is not beta anymore and dumps have been working stable for a while now, so it's time to drop the beta mark from the name. It may take a week or two for the change to propagate and be applied to dumps, but if your tools depend on exact naming, please prepare them for the eventual change in the name.
Note that links like https://dumps.wikimedia.org/wikidatawiki/entities/latest-all.nt.gz would still be pointing to the right files, and if all you care is downloading the latest dump, using these links is always recommended.
We will send another message once the change has been implemented and deployed.
Thanks,