Java Edition 1.17.1

1.17.1 is a minor update to, released on July 6, 2021, which changes some game mechanics and fixes bugs. It is not compatible with 1.17 servers.

General

 * Death messages
 * Two previously untranslated death messages for some underwater mobs have been given messages:


 * Languages
 * Added Classical Chinese.

Blocks

 * Cauldrons
 * Powder snow now fills cauldrons twice as fast as before.

Items

 * Spyglass


 * Tweaked held model texture to include glass on the backside.

Mobs

 * Axolotl
 * Blue axolotls now only spawn through breeding.


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


 * Goats
 * Breeding common goats now have a 2% chance to produce screaming goats.
 * Status effects applied to 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
 * Handshake packet padding method for "hostname" and "port" field has reverted to pre-1.17 when the server address which used is a SRV record.
 * Now, data padded in these field will use the address and port which SRV record pointed at, instead of using "server address" as "hostname" and 25565 as "port".


 * Fonts
 * Some new characters have been added.
 * Includes several currency symbols and some new emoji.
 * The new characters are: ✂🍖🪣🔔⏳⚑₠₡₢₣₤₥₦₩₫₭₮₰₱₲₳₵₶₷₸₹₺₻₼₿


 * Languages
 * Removed the following languages due to incomplete translations:
 * East Allgovian German
 * Manx
 * Sicilian


 * Logging
 * Deaths of named mobs are now logged.

Fixes

 * Other
 * Duplication exploit with anvils.
 * Fixed crashes.
 * A private issue was fixed.
 * Fixed some critical issues.

Videos
Videos made by slicedlime: