Note that 1.40 is not yet close to ready -
https://phabricator.wikimedia.org/T340939 -
> but the 1.39.4 security release is being prepared:
https://phabricator.wikimedia.org/T332786

Unfortunately the above process is currently manual, but it looks like the goal is to automate it per https://phabricator.wikimedia.org/T345564, bringing more timely updates in the future.

Yours distracted-by-a-fox,
-- 
Laurence 'GreenReaper' Parry - WBUG
https://GreenReaper.co.uk