Java Edition 1.17.1/Development versions

This is a list of Java Edition 1.17.1 development versions.

1.17.1 Pre-release 1 (known as 1.17.1-pre1 in the launcher) is the first pre-release for Java Edition 1.17.1, released on June 18, 2021,^[1] which tweaks some game mechanics and fixes bugs.

Cauldrons

• Powder snow now fills cauldrons twice as fast as before.

Spyglass

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

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 the Looting enchantment from 1% to 2%.
  • This change is to match Bedrock Edition's drop rates.

Goats

• Breeding common goats now has a 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.

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: ₺✂🍖🪣🔔⏳⚑₠₡₢₣₤₥₦₩₫₭₮₰₱₲₳₵₶₷₸₹₺₻₼₿

30 issues fixed

From released versions before 1.17

• MC-123654 – Sun, moon, and/or clouds are not showing if render distance is below 4.
• MC-131290 – Enchantments are saved as shorts, but are loaded as and function with integer values.
• MC-156155 – Turkish lira sign (₺) appears as □ in the game.
• MC-156977 – When TNT is powered at the moment it's pushed, it creates a ghost block.
• MC-194736 – Duplicate text mapping for U+00B7.
• MC-196999 – U+1FEC is wrong in Minecraft's font.
• MC-223350 – Loaded chunks sometimes don't render until the player moves their head slightly.

From 1.17

• MC-213986 – Pistons and dispensers can be used to create ghost blocks using powder snow.
• MC-219018 – Ghost items can be created using /item (server doesn't update client inventory correctly).
• MC-223368 – Strength and weakness potions / custom attack damage attributes does not change damage from goats.
• MC-225816 – Hanging roots appear large when an item entity.
• MC-226461 – Logs can be replaced with stone near lava pools.
• MC-226505 – Goat's long jump is not affected by the jump boost effect.
• MC-226512 – Goats do not use the damage of held items when ramming entities.
• MC-226948 – Withers are now affected by potion effects.
• MC-227387 – World gen datapacks will likely crash or softlock the game.
• MC-227435 – Lag when placing heads of non-existent players when on servers.
• MC-227483 – root_system feature config's codec uses a wrong field.
• MC-227520 – Overworld Fossils always generate at bedrock level.
• MC-227557 – End portal texture appears stretched after world conversion.
• MC-227618 – Small dripleaf is consumed without being placed when used on tall seagrass.
• MC-227651 – Group for lapis lazuli ore smelting and blasting recipes is misspelled.
• MC-227821 – Client crash when trying to create/edit realm immediately after deleting previous one.
• MC-227891 – Ender pearls despawn when a player logs out of a server.
• MC-228219 – Thrown ender pearls disappear upon entering the exit end portal.
• MC-228343 – java.lang.NullPointerException when random_selector default feature isn't found.
• MC-228430 – Very long loading pause while booting the game ("Failed to add PDH Counter", caused by oshi).
• MC-228828 – Specifying the --server parameter when starting the game, causes the game to crash.
• MC-229299 – Blue axolotls can spawn naturally.

Other

• Duplication exploit with anvils.

1.17.1 Pre-release 2 (known as 1.17.1-pre2 in the launcher) is the second pre-release for Java Edition 1.17.1, released on June 29, 2021,^[2] which adds the feature for the logging of named mobs' deaths and fixes bugs.

Languages

• Added Classical Chinese.^{[note 1]}

Languages

• Removed the following languages due to incomplete translations:
  • East Allgovian German^{[note 2]}
  • Manx
  • Sicilian^{[note 3]}

Logging

• Deaths of named mobs are now logged.

8 issues fixed

From 1.17

• MC-219290 – Calcite is too quiet compared to other blocks.
• MC-221656 – Creative mode obtained bucket of axolotl/tropical fish only spawns one kind axolotl/tropical fish.
• MC-226926 – Emerald ore generates too often.
• MC-228599 – Attempting to walk through flowing water constantly switches the player from swimming into normal mode.
• MC-229191 – Diamond ore distribution changed between 1.16.5 and 1.17.
• MC-229441 – You can steal the item a villager is holding for trade by killing it.
• MC-229614 – Wandering Trader obtained tropical fish are only white kob.

From the previous development version

• MC-229983 – /clear command doesn't clear certain stacks after dropping items from them.

1.17.1 Pre-release 3 (known as 1.17.1-pre3 in the launcher) is the third and final pre-release for Java Edition 1.17.1, released on June 30, 2021,^[3] which fixes bugs.

8 issues fixed

From released versions before 1.17

• MC-224894 – Light tickets are released too early.

From 1.17

• MC-222731 – Captured axolotl constantly tries to leave water.
• MC-228802 – Chunks not loading on a server / Cannot invoke cmq.a(int, int, int) because ☃ is null.
• MC-228858 – Axolotls despawning though named and on leashes.
• MC-229169 – Piglins can no longer hear players breaking protected blocks through walls.
• MC-229246 – Piglins and piglin brutes no longer call other piglins after attacking one of them behind walls.

From the Java Edition 1.17.1 development versions

• MC-229475 – Placing a small dripleaf results in the top half of water getting deleted.
• MC-229887 – "Unable to create a jar-filesystem" warning logged upon starting the game.

1.17.1 Release Candidate 1 (known as 1.17.1-rc1 in the launcher) is the first release candidate for Java Edition 1.17.1, released on July 1, 2021, which fixes bugs and crashes.^[4]

Death messages

• Two previously untranslated death messages for some underwater mobs have been given messages:
  • <Name> died from dehydration;
  • <Name> died from dehydration whilst trying to escape <Name>.

2 issues fixed

From 1.17

• MC-230716 – death.attack.dryout and death.attack.dryout.player display raw translation strings (are untranslated).

Other

• Fixed crashes.

1.17.1 Release Candidate 2 (known as 1.17.1-rc2 in the launcher) is the second and final release candidate for Java Edition 1.17.1, released on July 5, 2021, which fixes some critical issues.^[5]

2 issues fixed

Private issues

• A private issue was fixed.

Other

• Fixed some critical issues.