Barring any horrific bugs being found Version 0.2 is planned to be released next Monday 2/28.
There are many things that have changed but the biggest is a complete visual overhaul of conveyors and oh boy did they come out looking fantastic. I could tell you about it all day but we can all agree that you need to be shown!
There will likely be several balance passes on the patch even after it comes out next week, as well as the fixing of bugs. There will not be any significant changes to version 0.2 once it comes out. All the major changes will be held until 0.3 and there are a lot of them.