the full changelog is here: 
https://mysteriousspace.com/changelog/0-10-x/but here’s a summary:
- when it snows on ice worlds, there’s now snow on the ground! (just like in real life!)
 - those gnat things (Swarming Sirrah) no longer spawn like mad-crazy >_>
 - some performance improvements to saving & loading games
 - some equipment tweaks