It seems that they have a build of 3.0 in Gamescom
https://twitter.com/RobertsSpaceInd/status/899640380681056256
They better have. Everything else would be an embarassment, after Roberts touted 3.0 for the end of 2016 one year ago.
The wording however leaves tons of headroom to not have any 3.0 to show in running condition. Because they can just cobble together a limited section of Daymar in the editor, drive around on it for 10 minutes and call it a "Daymar experience". Just like some of their more blind faithfuls are calling Alpha 2.x a game, whereas it's a tech demo.