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

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.

Changes

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 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.

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: ₺✂🍖🪣🔔⏳⚑₠₡₢₣₤₥₦₩₫₭₮₰₱₲₳₵₶₷₸₹₺₻₼₿

Fixes

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.

Additions

General

Languages

Added Classical Chinese.^{[note 1]}

Changes

General

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.

Fixes

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

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.

Fixes

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

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]

Additions

General

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>.

Fixes

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

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

Fixes

2 issues fixed

Private issues

A private issue was fixed.

Other

Fixed some critical issues.

Notes and references

↑ Also available for versions since 19w34a.
↑ Also removed from 1.15's assets.
↑ Also removed from 1.15's and 1.16's assets.

↑ "Minecraft 1.17.1 Pre-Release 1" – Minecraft.net, June 18, 2021.
↑ "Minecraft 1.17.1 Pre-Release 2" – Minecraft.net, June 29, 2021.
↑ "Minecraft 1.17.1 Pre-Release 3" – Minecraft.net, June 30, 2021.
↑ "Minecraft 1.17.1 Release Candidate 1" – Minecraft.net, July 1, 2021.
↑ "Minecraft 1.17.1 Release Candidate 2" – Minecraft.net, July 5, 2021.

Navigation

[3] Also available for versions since 19w34a.

[4] Also removed from 1.15's assets.

[5] Also removed from 1.15's and 1.16's assets.

[1] "Minecraft 1.17.1 Pre-Release 1" – Minecraft.net, June 18, 2021.

[2] "Minecraft 1.17.1 Pre-Release 2" – Minecraft.net, June 29, 2021.

[6] "Minecraft 1.17.1 Pre-Release 3" – Minecraft.net, June 30, 2021.

[7] "Minecraft 1.17.1 Release Candidate 1" – Minecraft.net, July 1, 2021.

[8] "Minecraft 1.17.1 Release Candidate 2" – Minecraft.net, July 5, 2021.

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