Running an open source project is not for the faint of the heart, or those without a little patience. Ever since 2012, there have been talks about the (almost mythical) MODX version 3 and all it would bring. Fast forward a few years past all the drama, shifting priorities, changes in contributors, governance boards, and all the best intentions in the world...
Today is December 12th, 2019.
Welcome to the very first official alpha release of MODX 3.
There's a lot that can be said about this release. Jason Coward has written a post to introduce you to this release, and to explain who/what it is for.
(Spoiler: it's not meant for production.)
Getting MODX 3 to where it is today has been a long process, and it might not live up to all of the expectations that have been built over the years.. but it's finally here. Developers are encouraged to check their extras and to report any issues they encounter, including as-of-yet undocumented/unintentional breaks in backwards compatibility. Documentation related to the MODX3 upgrade can be found here.
More work will be done before the beta and finally stable release, so expect more cleanup, core modernisation, and feature improvements to come. For now, I have a bottle of something sparkly to pop...