We're now on pre-release 10 and we expect this to be the last pre-release before the full release. That said, unless any major show stopper pops up, we aim to release Update Aquatic for Minecraft: Java Edition on Wednesday, July 18th.

CHANGES IN 1.13-PRE1

New Update Aquatic title screen

Three brand new pieces of music by C418

You can now tab-complete in command blocks again

Fixed bugs!

CHANGES IN 1.13-PRE2

Title screen should now be more optimised

Reverted the bark block changes from the first pre-release

Various performance optimisations

You can now combine 9 ice to create 1 packed ice

Fixed a bunch of bugs

CHANGES IN 1.13-PRE3

Lots and lots of bug fixes!

Some optimizations!

CHANGES IN 1.13-PRE4

Updated LWJGL

Biome names are now sorted alphabetically in the buffet menu

Performance improvements

Bugs got fixed!

CHANGES IN 1.13-PRE5

Fixed a nasty crash

Renamed a lot of internal IDs to be more consitent with the game

Squashed bugs!

CHANGES IN 1.13-PRE6

Changed dolphin treasure finding behaviour to be more on parity with Bedrock

Improved fonts

Some sounds are now more wet

Brought out the bug spray!

CHANGES IN 1.13-PRE7

Fixed outstanding issues with the new improved fonts

Maps changed slightly. Read more about it by clicking here.

Made all waterlogged blocks display the drip animation

More bugfixes!

CHANGES IN 1.13-PRE8

Added dead coral fans

Changed which blocks show dripping liquids

Team names & objective names are now text components, not raw strings

More bugfixes!

CHANGES IN 1.13-PRE9

Added a few missing subtitles

Improved performance

Fixed bugs!

CHANGES IN 1.13-PRE10

Added an "Optimize World" button (singleplayer -> edit world -> optimize world), which upgrades an entire world from older version to the latest version in one go

Improved performance

Fixed bugs!

FIXED BUGS IN 1.13-PRE1

MC-122134 - Tab-completion in command blocks no longer works

MC-122940 - After executing the /reload command, clicking on recipe book recipes does not work

MC-124123 - Crash upon loading world: Non [a-z0-9/._-] character in path of location: minecraft:Zombie

MC-124972 - Game crashes during the loading world, when creating a superflat world with oceanmonument tag

MC-127142 - Failed to create block entity DUMMY (path of location: minecraft:DUMMY)

MC-129625 - Sea grass changes to air pockets when upgrading from 18w16a to 18w20a+

MC-130463 - Sponges do not absorb bubble columns

MC-130521 - Leaves placed by hand disappear if not touching log or bark after a reload

FIXED BUGS IN 1.13-PRE2

MC-35856 - Multiple background songs playing at one time / automatic music overlap (not Jukebox music)

MC-102403 - Persistent/unchangeable sounds after (re-)opening a world

MC-121628 - Horse armor textures z-fighting.

MC-121714 - Unable to save screenshots and world icons if the path contains non-ASCII characters

MC-121832 - Z-fighting on skeleton horse texture

MC-122864 - Tamed llamas, donkeys, and mules cannot be named with a name tag

MC-123007 - Z-fighting on zombie horse texture

MC-123366 - Item right click actions don't work whilst looking at a block in adventure mode

MC-123811 - Horses (and llamas, etc) show default name as "HorseChest"

MC-124364 - Horse skin and armor textures not applied correctly to horse model

MC-125363 - Items fail to remain on surface

MC-125744 - Entity predicates for advancements fail if "type" not specified

MC-127099 - Kelp isn't completely removed when sponge removes the water

MC-127320 - Drowned do not recognize tridents as weapons they can pick up

MC-127921 - Horses' health bars interfere with the air bubble bar.

MC-128241 - Dolphins can sit in boats

MC-129262 - Zombie horses don't sink in water like other undead mobs

MC-129374 - Crash on 32 bit JVMs: "Unable to bootstrap datafixers" due to stack overflow

MC-129500 - Map displays 1 deep water as dry land.

MC-129712 - Team Suffix resets after restarting world

MC-129895 - Concrete powder's falling sand entities lose NBT data when upgrading from 1.12.2 to snapshots

MC-130014 - When updating villagers trade carved pumpkin instead of pumpkins

MC-130059 - Bubble column particles (from falling) have missing texture

MC-130145 - Text over the hotbar does not reflect item rarity colours

MC-130200 - Items in saved creative toolbars upgrade improperly from 1.12.2 to 1.13-pre1

MC-130524 - Beds turn invisible when upgrading from 1.11.2 or below

MC-130577 - Armor doesn't always line up with Drowned model

MC-130722 - Slime blocks diffuse light

MC-130779 - Title-Screen Lag High GPU Usage

MC-130800 - Normal terracotta disappears from chests when upgrading from 1.12 to 1.13-pre1

MC-130858 - Pistons are no longer transparent

MC-130936 - Carpets on llamas removed when loading 1.12 map

MC-130942 - Errors, warnings and 10 second freeze on loading list of singleplayer worlds

MC-130945 - Command tab completion does not work in command blocks with command suggestions off

MC-131125 - InhabitedTime set to zero after update from 1.12.2 (Local Difficulty)

MC-131155 - Saving structure which has not been saved before logs error "Couldn't load structure"

FIXED BUGS IN 1.13-PRE3

MC-131706 - Water doesn't destroy carpet

MC-131633 - Mobs get stuck on carpet

MC-131458 - Cobwebs don't appear on maps

MC-131419 - Squids, fish, and dolphins don't suffocate on land

MC-131416 - Conversion of a 2013 world crashes as of 1.13

MC-131400 - Structure names allow trailing dots for folder names

MC-131343 - Crash when clicking on a recipe in the recipe book without sufficient ingredients

MC-131154 - Resource locations allow empty path pieces

MC-130778 - End return portals don't return you to the centre End Island

MC-130690 - EntityTag for spawn eggs is not working

MC-130667 - Flowing water freezes in frozen biomes.

MC-130554 - Waterlogged blocks have a full cube hitbox

MC-130486 - Side of water and lava not rendered besides non-full-height blocks

MC-130475 - Boats immediately sink when placed on water

MC-130374 - vSync turns off in fullscreen mode

MC-130169 - Enchanted items with capitals in enchantment ID cause crash (path of location: minecraft:Cookie)

MC-129526 - Grass and ferns don't show up on a map

MC-128558 - Swamp Hills (mutated_swampland) biomes have wrong colored water (light yellow)

MC-128237 - Conduits, kelp, coral (fans), and tall grass have full hitboxes

MC-128071 - Desert rabbits were the wrong color, but now they are missing

MC-127720 - Baby horses have long necks

MC-127326 - Rain splash particles don't appear on the surface of the water

MC-127109 - Nether caves under lava oceans don't fill up with lava properly

MC-127044 - Waterlogged blocks don't move entities if the water in them is flowing

MC-126809 - minecraft:exploration_map loot table function only works on block containers

MC-126138 - No rain sound in ocean

MC-126038 - Observers getting moved in "on" state rather than "off" state

MC-125644 - Dispenser filled with bone meal cannot create sea grass

MC-124876 - Villagers requesting tools with no damage provided specifically want Damage:0

MC-124325 - Nested /execute commands can only store success/result once

MC-124174 - Game crash when give yourself an item with empty name

MC-124025 - Terracotta, spawn egg and entity statistics are lost on world upgrade

MC-123362 - SuccessCount of command blocks use the "result" return value of a command instead of "success"

MC-123011 - Scores on scoreboard objectives created with old stats causes scoreboards to not store changes to scoreboard.dat

MC-122498 - Some advancements and recipes are not upgraded when opening world in 17w47+

MC-35856 - Multiple background /title songs playing at one time / automatic music overlap (not Jukebox music)

MC-258 - Most text boxes / chat / scroll bars revert when the window changes size, fullscreen mode is toggled, or fullscreened game is tabbed into

FIXED BUGS IN 1.13-PRE4

MC-36030 - Music playing despite music / jukebox slider set to OFF

MC-121798 - Can only scroll list in superflat preset selection when it is focused

MC-126162 - Waterlogged blocks and bubble columns don't absorb explosion damage

MC-126244 - Extreme lag when using the /locate command or when generating explorer maps

MC-126595 - Blue Wither heads are intangible and invincible on the first tick(s?)

MC-128299 - Blocky and fully bright areas appearing underwater

MC-128690 - Water does not flow sideways when there’s no block below it

MC-130270 - Iron golem spawning inside blocks

MC-130530 - Water source block gets destroyed from downwards flowing water

MC-131094 - Projectiles ignore collisions for ~1 block after spawned

MC-131462 - Coordinate math error causes structure not to generate and possibly other issues

MC-131768 - Models’ predicates are inverted

MC-131773 - Comparators from command blocks no longer output results properly

MC-131805 - Observers pulsing after being moved instantly after triggering

MC-131825 - Enchanted books lose enchantments when upgrading

MC-131849 - Duplication bug

FIXED BUGS IN 1.13-PRE5

MC-103516 - Spider and chicken jockeys only spawn the additional mob

MC-118372 - Faulty netty-4.1.9.Final release causes players to be kicked from the server

MC-124545 - Malformed JSON as 'name' value for 'show_entity' hoverEvent causes crash

MC-124546 - /datapack disable <pack> only works in the overworld

MC-125729 - Moving frosted ice preempts melting even under correct conditions

MC-126136 - Inverted tab-suggestions for argument values in entity selectors are suggested even if the typed prefix doesn't include an exclamation mark

MC-126144 - Cods suffocate when touching a solid block from below

MC-126373 - Density of nether and overworld ore veins significantly lower in 18w versions

MC-126906 - Buckets cannot be emptied against blocks with the state waterlogged

MC-126915 - Dispenser with empty bucket removes waterlogged blocks instead of drying them out.

MC-129527 - Drowned overlay turns dark blue when wearing enchanted armor

MC-130270 - Iron golem spawning inside blocks

MC-130480 - Input range entry and limits are reversed in error messages

MC-130547 - Objective minecraft.used only ticks up when placing a block from a stack of 2 or more items

MC-131094 - Projectiles ignore collisions for ~1 block after spawned

MC-131599 - Opening player inventory with visible recipe book after using beacon causes crash

MC-132002 - Ender dragon respawns when upgrading from 1.12 to 1.13-pre3

MC-132064 - Swimming state does not end when teleporting / jumping out of water

FIXED BUGS IN 1.13-PRE6

MC-234 - Digging straight down glitches out the breaking animation (Z-fighting)

MC-14502 - Special characters on splash text on title screen rendered wrong

MC-41410 - Random text does not work in unicode

MC-64537 - Gui zooming out when using some languages (unicode)

MC-72943 - Game freeze after closing an "Open to LAN" single player world

MC-81876 - Number of characters before line cutoff in chat is not same when unicode mode is enabled and when it is off

MC-91727 - loot table "spreading large stacks" will overwrite existing items

MC-92255 - Singleplayer freezes instead of kicking a player

MC-94325 - Shadow of obfuscated text does not match with displayed character

MC-96524 - Language specific letters don't look like they should

MC-121798 - Can only scroll list in superflat preset selection when it is focused

MC-121861 - Command argument validation does not work for entity id in /summon

MC-122110 - BufferBuilder not expanding under specific conditions.

MC-122478 - It is possible to create a server in the server list with a blank name and/or IP address

MC-122495 - Cancelling backup screen using ESC opens main menu

MC-122596 - Command autocomplete overrides command history navigation

MC-122597 - "Preparing spawn area %s%%" string is hardcoded/not translatable

MC-123078 - Scoreboard ranges don't work correctly at extreme values

MC-123087 - Fences, glass panes, iron bars, stairs, and melon/pumpkin stems in structures generate with wrong block state

MC-123236 - Wrong error message when using invalid item in /replaceitem

MC-123325 - You can no longer use damaged items in advancement icons to display different textures

MC-123352 - Interaction error with block and GUI, when shift-clicking them with non-block items

MC-123363 - Occasional crash when changing blocks with a special renderer that uses states

MC-123432 - Snapshots are leaking tile entity data through to world save

MC-124469 - GUI scale size 3 displays as size 2 when Unicode font is forced

MC-124966 - Torches in mineshafts/strongholds are not always attached

MC-125090 - Cartographer doesn't unlock woodland mansion and ocean monument map trades

MC-126244 - Extreme lag when using the /locate command or when generating explorer maps

MC-126685 - Bubble columns don't update when placing magma blocks or soul sand above them

MC-126708 - Advancement trigger "bred_animals" does not trigger for breeding turtles

MC-126769 - Observers detecting updates from redstone on top of them

MC-127822 - Unicode on/off bug with another languages and english letters.

MC-128387 - Dolphins try to pick up items on land

MC-128687 - Picking up lava with an empty bucket would play the water picking up sound.

MC-128736 - Dolphin's pectoral (side) fins are flipped over instead of mirrored

MC-129318 - The "How Did We Get Here?" advancement does not require Dolphin's Grace

MC-130127 - Dolphins generate in large amounts with ocean ruin structures

MC-131019 - Setting and changing data of signs creates unnecessary "extra" tags and causes slow downs

MC-131159 - Dolphins spawning in frozen/deep frozen oceans!

MC-131288 - Shulker Box can't be opened and disappears when mined

MC-131783 - Crash on breaking 1.12.2 -> 1.13-pre5 upgraded banner

MC-131903 - Banners not dropping as item when broken after unloading

MC-132050 - Worlds <= 1.8.9 spam errors on conversion

MC-132113 - 1.13-pre4+ crashes caused by invalid gamepad / controller configuration detected by LWJGL 3.1.6 build 14b

MC-132242 - Upgrading enderman spawn egg causes chunk to regenerate

MC-132252 - Player cannot leave the swimming animation underwater

MC-132254 - Using /effect to give players an effect kicks them from the server

MC-132259 - Poor TPS in latest pre-release

MC-132278 - End Crystal beam is missing texture

MC-132281 - Crash while creating a customized superflat world using capital letters

MC-132292 - Some sound events are no longer playing the expected sound

MC-132311 - Dolphins don't save how long they have been out of water

MC-132312 - Using bone meal on anything underwater places sea grass on it

MC-132320 - Entities with new IDs disappear when upgrading

MC-132335 - Shulkers no longer shoot missiles in 1.13-pre5

MC-132375 - Upgrading 1.12.2 world to 1.13-pre5 crashes the game

MC-132443 - Some advancements are not upgraded from 1.12.2 (to 1.13-pre5+)

MC-132448 - Illager and golem statistics are not upgraded properly

MC-132455 - Evoker spawn egg disappears when upgrading from 1.12.2

MC-132579 - Inconsistent font

FIXED BUGS IN 1.13-PRE7

MC-37557 - Sometimes a minecart sound plays/subtitle shown when loading a world

MC-122596 - Command autocomplete overrides command history navigation

MC-122734 - No particles when bed explodes in the nether

MC-123087 - Fences, glass panes, iron bars, stairs, and melon/pumpkin stems in structures generate with wrong block state

MC-123369 - Trying to recreate world from future version shows no warning and can crash

MC-123769 - Some item tooltips that previously had colors don't have colors anymore

MC-123836 - Double blocks aren't loaded in structures

MC-123850 - Redstone dust doesn't update shape of connecting redstone dust when going up onto transparent blocks

MC-124015 - Red Giant Mushrooms generate with 5 blocks having wrong blockstates, thus showing wrong faces

MC-124126 - You no longer look at the block you are inside of

MC-124915 - /locate and eye of ender find strongholds in invalid places

MC-125090 - Cartographer doesn't unlock woodland mansion map trades

MC-125462 - Waterlogged blocks does not decrease light level

MC-125872 - Superflat preset "The Void" doesn't generate starting platform anymore

MC-125992 - Cave outlines generate in ocean ravines

MC-126704 - X-ray vision

MC-126998 - When their block state changes, waterlogged blocks don't remove water they let through

MC-127025 - Waterlogged blocks do not display water drip animation

MC-127093 - Water flowing onto waterlogged blocks spreads outward, rather than stopping

MC-127114 - Water in glass panes and ladders doesn't appear in maps

MC-127115 - Visually fully submerged waterlogged blocks don't appear as water on maps

MC-127224 - Waterlogged blocks that are not full blocks trigger auto-jump even if it is disabled.

MC-127303 - There are no water sources near the south ceiling of flooded caves and trenches

MC-128257 - Bugged swimming animation while the head is not underwater

MC-128478 - Distance swum statistic uses old "swimming" (bobbing on top of water) instead of the new swimming

MC-129388 - Player suffocating when touching a solid block while swimming

MC-129892 - Selector wildcard doesn't work in scoreboard operations

MC-130072 - Pufferfish don't play the entity.puffer_fish.sting sound when damaging mobs

MC-131352 - Item rarity color / colour overrides first text component's colour in the held tooltip (item switching)

MC-131382 - Scoreboard objective name can't be updated

MC-132135 - Bad performance of a 1.12.2 world in 1.13

MC-132248 - Server crash on launch using Java 9 or newer

MC-132269 - Blocks invisible on map

MC-132375 - Upgrading 1.12.2 world to 1.13-pre5 crashes the game

MC-132631 - Cannot write in the box in the Superflat presets option

MC-132632 - Can not climb 1 block height if player is in water 5 or more blocks from water source

MC-132654 - F3 + I is missing large amounts of data

MC-132706 - Sticky pistons pull blocks that pop off

MC-132751 - Two chests spawned inside each other

MC-132833 - Opening 1.5.2 world on 1.12.2 works perfectly but bed is transparent.

MC-132974 - Converting 1.12 world to 1.13 spams Chunk file at x,y is missing level data, skipping

MC-132977 - Esc key results in an older world being converted to a newer version during 'Play' menu sequence

MC-133063 - When trying to connect to an unreachable server Minecraft crashes instead of showing error message

MC-133136 - Crash when launching the game with LWJGL allocation debugging enabled

MC-133139 - The image write callback is never freed, leaking small amounts of memory for each screenshot

MC-133140 - The GL debug message callbacks are never freed, causing memory leak warnings

FIXED BUGS IN 1.13-PRE8

MC-133325 - Double chests becoming invisible or separating with redstone

MC-133277 - Texts sometimes error if the language is Chinese

MC-133233 - Sticky pistons do not update blocks they cannot pull

MC-133216 - Water dripping from transparent blocks

MC-133214 - Sticky pistons pull glazed teracotta

MC-133157 - Sprinting in shallow water using ctrl will change FOV back and forth

MC-132835 - The right "tail" of the capital ß (ẞ) seems to be a few pixels too long.

MC-132695 - Some bold characters have either extra or lack of pixels

MC-132639 - New version of unicode font has some weird characters

MC-132635 - Placing blocks with off-hand while main hand empty not possible

MC-132603 - Bark recipes are not upgraded

MC-132466 - No enum constant bfz - loading and saving 1.12.2 chunks

MC-132174 - Tier 4 beacons will not give regeneration effect

MC-132123 - Lighting for broken block not updated

MC-131327 - Opaque blocks at the top of subchunks (chunk sections) do not increase the world height to the next subchunk

MC-128858 - Distance given by /locate is inaccurate

MC-124955 - Bottoms of large ferns and tall grass are generating in place of regular ferns and grass in taiga biomes

MC-123447 - Skin not visible in spectator mode GUI (since 1.13)

MC-123265 - Spectator mode tooltips not showing

MC-68565 - Monsters spawn at daytime at y=256 and don't burn

MC-60995 - Maps inconsistent over restarts

FIXED BUGS IN 1.13-PRE9

MC-131821 - Cory Scheviak does not appear in credits

MC-131822 - Nondescript / confusing error message when attempting to join servers <= 1.13-pre2 using >=1.13-pre3

MC-132652 - Username tab completion on non-empty starting strings is offset

MC-132657 - Username tab completion appears on the left when invoked without a starting string in the middle of the chat entry line

MC-133337 - Crash in org.lwjgl.opengl.GL11.glDrawArrays when opening language settings (caused by Couldn't find glyph for character Ʞ (\ua7b0))

MC-133503 - Control settings from 1.12.2 can get completely lost when upgrading to 1.13

FIXED BUGS IN 1.13-PRE10

MC-133653 - Game Crash when creating Superflat world (Void), entering the End, or creating floating islands buffet world

MC-133473 - Dead bubble coral fan looks like dead brain coral fan

MC-133467 - Mobs Stuck on Flowing Water

MC-133421 - The lowest level of flowing water doesn't move mobs

MC-133408 - Coral fans and dead coral fans never drop as item

MC-128668 - Ocean monuments cut off icebergs

MC-127100 - Water and lava influence the flow direction of each other when touching

MC-125038 - New world generation doesn't populate edges of old world

MC-125007 - World fails to generate decorations on seemingly random quarter chunks

MC-122216 - /execute if blocks only returning 1/0 for "result"

MC-59729 - /replaceitem doesn't work with chest or hopper minecarts

Get the pre-release

To install the pre-release, open up the Minecraft Launcher and enable snapshots in the "Launch Options" tab.

Pre-releases can corrupt your world, please backup and/or run them in a different folder from your main worlds.

Cross-platform server jar:

Report bugs here: