See details on the
Roguebasin wiki.
Also note that this is the last release before the ARRP on Sept. 18, on which I plan to release version 0.2.0, which will include much more interesting towns and cities, and well as implement dialogue and quests, although the main focus will be filling out the current features with content. I will also be posting on my blog about the various things I am doing, so you can know to some degree what to look for in 0.2.0.