Hello,
Thank you for bearing with us while translation updates were stopped.
We are now updating translations for Wikimedia sites with the weekly MediaWiki train based on the updates that are being provided by translatewiki.net. Feel free to add new translatable strings now.
However, during the investigation of the instigating security incident we identified architectural issues with the systems and processes that make up the nightly localization updates. This update process is currently disabled and will remain disabled until there is a clear plan and resourcing for improving the architecture. The task tracking this discussion is at https://phabricator.wikimedia.org/T206694 .
In the mean time new translations will go out with the weekly MediaWiki train.
Thank you for your continued understanding,
Greg