The combat of the 2018 build is kind of poor and boring and it doesn't really have that much of a story to go off of and is generally not my recommended version to play.
The Finale Edition includes 2 new party members and a better story with a conclusion.
The Fishing update re-adds Ari's scrapped mechanics from the Finale Edition giving her a more unique playstyle, adds the fishing system allowing players to have more than 1 way of obtaining cards and recovery items should they get stuck and includes an entire new area along with a True Ending.
There will be a final bug patch where we were tackle combat rebalancing and adding general QoL stuff, if you'd like to suggest some things I recommend going to the discord to tell us.