The most significant shift in v0.3.0.0 was the redesign of how beavers store and move goods:
Warehouses are now "wall-less," showing physical stacks of crates that represent exactly how much is stored. Different resources have unique crate colors and icons for easy identification without clicking. Timberborn.v0.3.0.0.zip
Warehouses, piles, and tanks no longer accept all goods by default. Players now select a single specific resource for each building. The most significant shift in v0
New Accept/Obtain/Empty settings allow players to command haulers to actively pull specific resources to a warehouse ("Obtain") or clear it out ("Empty"). Timberborn.v0.3.0.0.zip
The mechanical beavers were rebranded from "Golems" to " Bots " with entirely new models and animations. The factions' robots were renamed to Ironbots (Iron Teeth) and Timberbots (Folktails).