the main things this release are outposts and steam achievements! check out the full changelog here:
http://mysteriousspace.com/changelog/0-8-x/
and if you want to listen to me ramble about the changes for 9 minutes, an update video here:
https://www.youtube.com/watch?v=SFvvT6Hg0Sc
thanks, as always, for playing, and providing feedback! :)