Java Edition 1.17.1

1.17.1 is an upcoming minor update to, with no set release date.

Blocks

 * Cauldrons
 * Powder snow now fills cauldrons 2 times as fast as before.

Mobs

 * Axolotl
 * Blue axolotls now only spawn through breeding.


 * Drowned
 * Increased the drop probability of copper ingot from 5% to 11%, and increased the drop rate boost with each level of Looting spell from 1% to 2%.
 * This change is to match 's drop rates.


 * Goats
 * Breeding common goats now has a chance to produce screaming goats.
 * Status effects applied to goat goats now also apply when the goat is jumping or ramming.


 * Zombies, Zombie Villagers, Husks and Drowned
 * No longer pick up glow ink sacs.
 * This prevents zombies from persisting after picking up the loot of a dead glow squid.

General

 * Protocol
 * Client will now send the hostname actually used to connect while using DNS-based redirection (reverted to pre-1.17).

Fixes

 * Other
 * Duplication exploit with anvils.