The main feature of this update is the ability to submit your own quest/map.
When you are logged in into your account the menu in the top-right has an option to submit a new map. This will be reviewed before its accesible for everyone. If you want, you can put a release moment. If you would for example release your map on the first of february, your map will be accessible no sooner than that. On february 1st your map is automatically accessible for the public.

I also found it better to name the updates within the 0th version. Because it's simply not ready to be a proper first version.