The 1.36.0-wmf.33 version of MediaWiki is blocked[0].
The new version is deployed to group0[1], but can proceed no further until these issues are resolved:
* T276316 - Argument 1 passed to getCanonical() must be of the type string, null given, called in CentralAuthGroupMembershipProxy.php - https://phabricator.wikimedia.org/T276316
Once these issues are resolved train can resume.
Thank you for your help resolving these issues!
-- Your humble train toiler
[0]. https://phabricator.wikimedia.org/T274937 [1]. https://versions.toolforge.org/