Drifter 0.7.0 is still in the works but as a part of restructuring my development process we're moving to weekly builds starting today. Old habits are hard to break but the way I was working on the game previously was just not working out and it took me some time to take stock and try and fix things. That said hopefully this will help keep development from stalling out again and also it will mean lots of visible progress/less radio silence. Also we'll be able to address bugs more quickly and we'll be doing constant mid-stream polish as we go.
That said, the full details as to what's new and fixed in 0.6.4 are listed below and are also over on the wiki: http://celsiusgs.com/drifter/wiki/Current_Build_and_Known_Bugs
Scroll down to see a preview of the new UI look as well!
(Click to enlarge)