User blog comment:MisterWoodhouse/Unified Community Platform: The Vision, Purpose, and Process/@comment-37336800-20200221002725

Another thing I've been wondering about: Why choose MediaWiki 1.33? It's EOL'ing June this year, and you'll rapidly be back being out of date. A little older, but MediaWiki 1.31 doesn't EOL until June 2021, by which point it'd make sense to upgrade to the next LTS, 1.35 (with an EOL of June 2023).