Does the game auto Update?
The current alpha checks once per day, and informs you if there’s a newer version to download, but does not update itself automatically. However, cliffski mentioned that this will most likely change in the future.
where will it say that there is a update
When you boot the game up, it will tell you to go and download the installer again, big window, you can’t miss it. I think you have to close it anyway to do anything so chances are if there is an update then you’ll know.
Don’t know what happens if you are not connected to the internet though as it can’t look for a new version number, probably best to follow Cliffski on twitter to find out when new releases are coming.