As of a few moments ago, stat1004 is now on Debian Buster.
The SSH host keys have changed. I have updated the corresponding wiki page
with the new fingerprints. You can also use the utility script to update
the keys automagically.
This concludes the move of these three hosts to Debian Buster.
As always, if there is anything out of order, don't hesitate to contact us.
Tobias Klausmann, SRE, Wikimedia Foundation