Minecraft wiki entry for Development_versions, associated text: Bartering loot has been restructured to be more appealing to survival players.[8]
The new loot for bartering consists of:
Common barters (20⁄226 chance or about 8.85%): 6–10 shroomlight, 1 fire charge, 8–16 gravel, 4–10 leather, 4–10 warped fungus, 4–16 nether brick, 1 obsidian, or 1–3 crying obsidian.
Uncommon barters (10⁄226 chance or about 4.42%): 8–16 nether quartz, 5–12 glowstone dust, 2–6 magma cream, 4–8 ender pearl, or 8–24 string.
Rare barters (5⁄226 chance or about 2.21%): 1 warped nylium, 1 Fire Resistance potion or 1 Fire Resistance splash potion.
Very rare barter (1⁄226 chance or about 0.44%): 1 netherite hoe.
In this snapshot, all item amounts are 1–5 due to a bug.[10]
Piglins will now inspect gold ingots first before throwing out the item they choose to barter for the player if they're still around.