The 1.36.0-wmf.9 version of MediaWiki is blocked[0].
The new version is deployed to nowhere at all, including not even on
testwikis, but can proceed no further until these issues are resolved:
* T262900 Rebuilding l10n cache fails for train -
https://phabricator.wikimedia.org/T262900
Once this issue is resolved train can get moving at all.
Thank you for your help resolving these issues!
-- Your humble train toiler
[0].
https://phabricator.wikimedia.org/T257977
[1]. <https://versions.toolforge.org/>