On Wednesday the 19th, production wikis were rolled back from 1.34.0-wmf.10
to 1.34.0-wmf.8 due to a critical issue: "T226109 Jobs not being executed
on 1.34.0-wmf.10" [1]
It's now Thursday afternoon in the U.S. and we still do not have a fix, nor
is there an indication that a fix is imminent. It's not clear which patch
caused the issue so that leaves us with no choice but to cancel the train
for this week and try again next week. If there are critical fixes that
need to be deployed, I can help with that for the remainder of today; there
are of course no deployments on Friday.
[1]
https://phabricator.wikimedia.org/T226109