Relist or update?

Hey devs — need advice on relaunching my game

I published Midnight AM a while back, before Facepunch introduced the Playfund eligibility requirements (50 players, trailer video, etc). Since then I've completely overhauled the game.
For the best shot at visibility on the platform, would you:

Update the existing listing with a big changelog, or
Publish it as an entirely new game?
Curious if anyone's been through this and what worked for them

Hi.
It’s better to release an update for a game that’s already been published.
1. It’s logical and the right thing to do.
2. Players love it when updates are released for games they’re already playing. And we, as developers, also love it when the games we play get updated. An update means fewer bugs, better graphics, and better gameplay.
3. If a game isn’t updated, it means it’s been abandoned, and only the most loyal fans will continue to play it.
4. After an update, the game will be more visible when games are sorted by "Updated", and new players may discover it there.