Changelog

4.0.4 — Minecraft 1.21.1 / NeoForge

Changes

• Exchange core: replacement now stops under a covered block instead of going around it. When the exchange flood-fill reached a block with something sitting on top of it, that block was correctly skipped — but the fill kept spreading through the diagonal neighbours, wrapped around the obstruction and carried on replacing on the far side. Diagonals now only propagate when both orthogonal neighbours are themselves uncovered, so the exchange cuts off right below the covered block and stops there. Straight propagation already behaved this way; this only closes the diagonal bypass.

• Destruction core: broken blocks go straight to your inventory when you have no Void Sack. Previously the drops were spawned in the world and you had to walk over them. Now, if you are not holding an active Void Sack, the drops are inserted directly into your inventory, and once the inventory is full the remainder is discarded instead of littering the ground. Nothing changes when a Void Sack is active: the block still drops normally and the sack intercepts the pickup, so linked containers and internal storage work exactly as before. Which items a block drops is unchanged.