User blog comment:MisterWoodhouse/The Unified Community Platform Editor and our first release date/@comment-38215849-20200410205600/@comment-24006128-20200410215139

The wiki platform is more than just people you know, Erendust.

The legacy platform runs on an ANCIENT version of MediaWiki and upgrading to a 7 years newer version allows us to reap all the benefits from development from the Wikimedia Foundation, get access to more Extensions, and free up engineering teams to work on new features for editors and admins.

Why, just yesterday, I was in a meeting about a bunch of awesome quality of life changes we could make for admins. Things that are made easier by the new platform. Things we would not have time for if we continued to maintain the very forked legacy one.