v0.8.1264 has been put live on the main branch, here's a list of all the changes since the last version:

Changes

• Added first version of model editor
• Added steam workshop support
• Fixed scrollbar
• Fixed projectile max distance
• Fixed root motion (bug caused by unity update)
• Fixed particle effects (bug caused by unity update)
• Fixed resolution settings (bug caused by unity update)
• Fixed ground paint (was missing a lot of paint)
• Fixed ambient light intensity (bug caused by unity update)
• Fixed smoke-ring/puff showing up on main screen
• Moved screenshot path to documents folder
• Improved explosions
• Improved particle effects (particle motion blur will get a separate setting later)
• Performance fixes in particle engine
• Performance fixes in fracture engine
  

The model editor currently has a lot of hotkeys which don't have a toolbar yet, you can get a quick overview of these when you press the "Quick Help" button inside the editor.