Group0 wikis (mediawikiwiki, test2wiki, testwiki, testwikidatawiki, and zerowiki) are running version 1.28.0-wmf.20 of MediaWiki and extensions. All other wikis are running 1.28.0-wmf.18.
Tomorrow there will be a shortened train schedule in the normal train deployment window during which 1.28.0-wmf.20 will be pushed to all wikis.
Any blockers to this plan are tracked on Phabricator[0].
Thank you for all your help and patience while we get the train schedule[1] back on track!
-- Tyler
[0]. https://phabricator.wikimedia.org/T144644 [1]. https://www.mediawiki.org/wiki/MediaWiki_1.28/Roadmap