The 1.35.0-wmf.30 version of MediaWiki is no longer blocked[0], and is expected to proceed to group2 during the European train deploy window[1] on Thursday.
Thanks to cscott, ssastry, and James_F for assistance in unblocking the train.
-- Your scattered train secondary
[0]. https://phabricator.wikimedia.org/T249962 [1]. https://wikitech.wikimedia.org/wiki/Deployments#deploycal-item-20200430T1300
wikitech-l@lists.wikimedia.org