Void Upgrade

Destroys the filtered items as you pick them up, or only when their slot is full, so mining does not fill the bag. An ender pearl, three obsidian and two redstone.

Backpack upgrades, in the Sophisticated Backpacks guide

Tick what you already have.

radio_button_uncheckedMark as already hadEnder Pearl

radio_button_uncheckedMark as already had×3Obsidian

radio_button_uncheckedMark as already had×4String

radio_button_uncheckedMark as already hadDeepslate Iron Ore

radio_button_uncheckedMark as already had×4Iron Ingotgrid_viewBlast furnace, +70 more

radio_button_uncheckedMark as already had×4Rabbit Hide

radio_button_uncheckedMark as already hadLeathergrid_viewCrafting table, +26 more

radio_button_uncheckedMark as already hadUpgrade Basegrid_viewCrafting table

radio_button_uncheckedMark as already had×2Redstone Dustsync_problemgathered, not crafted

Void Upgradegrid_viewCrafting table, +1 more