0.8.6 is the second version I've played - I don't remember what the previous version was. This version has some cool new stuff - I love the belts, and the backpacks and ship upgrades are pretty cool too but maybe need a bit more polish still.
But in some ways it's a confusing step back from the other version I played. It's no longer possible to heat the ship, and the other subsystems mostly do less than they did, too. And late in the game, every time I undock, a creature boards my ship and kills me? That's way less interesting than the slow ramp-up of spooky ship things in the older version, and it stops me playing entirely.