The 1.35.0-wmf.31 version of MediaWiki is currently unblocked[0], has been released to group1, and (barring further blockers) will be rolled to all wikis at 19:00 UTC / 12:00 PDT, as scheduled.

Thanks to all who assisted in resolving T252079.

-- Your torpid train trundler (North American edition)

[0]. https://phabricator.wikimedia.org/T249963