Java Edition 1.13.1/Development versions

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This is a list of Java Edition 1.13.1 development versions.

18w30a

18w30a is the first snapshot released for 1.13.1, which adds a search bar in the world list and a few other things, and fixes many bugs.[1]

Additions

World list
  • Added a search bar in the world list.
Blocks
  • Re-added punch-to-explode TNT using the unstable state (instead of the explode state in 1.12)
Debug screen
  • Added Ctrl+F3+C to force a JVM crash, instead of a regular crash. However, with some keyboards it only triggers with right control.[2]

Fixes

49 issues fixed
From released versions before 1.13
  • MC-33383 – Lag while taking screenshot with F2 in singleplayer.
  • MC-59517 – TNT explode=true blockstate drops TNT item when fused by hit in survival mode.
  • MC-84005 – Book and quill doesn't save changes when edited in offhand.
  • MC-88099 – Slimes/Magma cube with NoAI-Tag still can damage the player.
  • MC-88356 – Bow animation broken in off-hand in third person.
  • MC-119971 – Various duplications, deletions, and data corruption at chunk boundaries, caused by loading outdated chunks — includes duping and deletion of entities/mobs, items in hoppers, and blocks moved by pistons, among other problems.
  • MC-124942 – "Invalid book tag" is not translatable.
From 1.13
  • MC-122563 – Disappearance of the old "punchable" TNT.
  • MC-122625 – Order of contents of north- and east-facing double chests changed after update 1.12.2 -> 1.13.
  • MC-123806 – Tab-completion/command suggestions only work for the final argument.
  • MC-124543 – JSON-Text formatting in CustomNames of container blocks does not work.
  • MC-124681 – Tab suggestion erroneously suggests second closing square bracket on entity selectors.
  • MC-124690 – Successful /bossbar set players doesn't give success message in chat.
  • MC-124808 – Blocks don't pop off when their support blocks are moved by pistons.
  • MC-124917 – Selector suggestions do not disappear after adding the closing bracket.
  • MC-125134 – Server crashes while generating new chunks – java.util.concurrent.ExecutionException: We are asking a region for a chunk out of bound.
  • MC-125286 – Block state suggester does not include '=' for first key.
  • MC-129754 – Putting down lava freezes everything and then crashes the game when quitting.
  • MC-131029 – Villager door detection range has changed.
  • MC-131462 – Coordinate math error causes structure not to generate and possibly other issues.
  • MC-131678 – Setblock property - block and setblock property - value are reversed in error messages.
  • MC-131868 – Concrete powder next to waterlogged blocks is not converted to concrete.
  • MC-132663 – Command blocks kick player when entering certain commands > 256 characters in multiplayer.
  • MC-132664 – Obfuscated text uses same random character each frame for each input character.
  • MC-132703 – Iron golems do not spawn in center of village.
  • MC-132898 – Multiple layers of falling gravity blocks break.
  • MC-133251 – Curse enchantments don't use red text.
  • MC-133260 – Obfuscated text characterset limited to simple ASCII.
  • MC-133345 – Some bolded obfuscated characters causes text to jitter
  • MC-133452 – Copying, pasting, etc. still insert "c", "v", etc..
  • MC-133587 – Deleting server format error.
  • MC-133715 – Thrown tridents cannot be picked up after dying.
  • MC-133839 – Crash when tp/at world border.
  • MC-133871 – Waterlogged trapdoors do not update properly when opened.
  • MC-133894 – Drowned don't drop items that they picked up as zombie then were converted.
  • MC-133905 – Large oak trees generate without making block under stump dirt.
  • MC-133942 – 1.13 Release is called a snapshot when backing up world.
  • MC-133959 – Credits don't appear when clicking "Copyright Mojang AB" in the title screen.
  • MC-133986 – Non [a-z0-9/. _ -] character in path of location: minecraft:EntityHorse.
  • MC-133995 – Transferring world from 1.12.2 to 1.13 isn't working.
  • MC-134166 – Villager door detection order has changed.
  • MC-134297 – Observers detect moved blocks late in 1.13.
  • MC-134298 – Observers don't detect retracting sticky pistons.
  • MC-134300 – Inconsistency with update order when pistons retract other pistons.
  • MC-134348 – Crash while upgrading: bkv{block=Block{minecraft:acacia_slab}, properties=[type, waterlogged]} has no property: half.
  • MC-134414 – Concrete powder falling onto sea grass just replaces it.
  • MC-134468 – Map cloning recipe only yields 2 maps.
  • MC-134555 – Sticky piston does not update gravity blocks
  • MC-134570 – Door top half missing when updating to new version.

18w30b

18w30b is the second snapshot released for 1.13.1, which fixes many bugs.[1]

Fixes

30 issues fixed
From released versions before 1.13
  • MC-3927 – Iron golems can spawn in slabs, glass, farmland and grass path.
  • MC-74764 – Particle "largeexplode", "hugeexplosion" and "sweepattack" not showing when using the front view (twice F5).
  • MC-75465 – Vignette effect's visibility is not being updated according to light level when GUI is hidden.
  • MC-76615 – Lightning bolt summoned by /summon is offset +0.5x and +0.5z.
  • MC-78963 – Command completion fails with multiple possibilities and other arguments set.
  • MC-105512 – Cracks appear inside dragon head instead of outside.
  • MC-114218 – Dispensers and droppers don't offset smoke particles when facing up or down.
  • MC-119856 – Slime blocks missing cullface argument.
  • MC-120664 – Tool durability is off by one.
  • MC-120780 – Chunk data packets are sometimes created unnecessarily.
  • MC-121152 – WorldClient leaks player and painting entities
  • MC-122614 – Strange tab completion coloring.
  • MC-123586 – Debug pie chart uses locale specific number formatting.
  • MC-123880 – Clientbound play packet 0x0C (Boss Bar) using same byte for different booleans.
From 1.13
  • MC-124054 – Tab-suggestions don't disappear when moving cursor.
  • MC-133154Placing a slab to stop the water flow doesn't remove the water.
  • MC-133273 – Normal Pistons also spit out their blocks with a short signal.
  • MC-133294 – Map Markers blacked out.
  • MC-133425 – Missing Glyphs for (U+FF3B) and (U+FF08).
  • MC-133453 – Players can't stand in "walk-through" blocks after swimming.
  • MC-134273 – Player Markers on Map after disconnect.
  • MC-134274 – Map Markers for players holding a different Map.
  • MC-134668 – Over synchronization in ThreadedAnvilChunkStorage impacts performance
  • MC-134903 – Mobs can break turtle eggs by standing on them when gamerule mobGriefing is false.
From the previous development version
  • MC-134826 – Deleting a world doesn't remove it from the list until re-entering world list.
  • MC-134828 – Server crash - Ticking world entities.
  • MC-134833 – Fast movement.
  • MC-134858 – The TNT block state "explode" does not carry over to 1.13.1's "unstable".
  • MC-134905 – Exception ticking world.
  • MC-134919 – Crash when blowing up TNT in the Nether
Other fixes
  • Fixed issue with rain sounds causing the console to spam errors.

18w31a

18w31a[3] is the third snapshot released for 1.13.1, which adds some new features, changes some existing features, optimizes performance, and fixes many bugs.

Additions

General

Chunks
  • Added a concept of force-loaded chunks to the game, and a command (/chunk) to toggle force-loading on and off.
Block tags
  • Added the block tag minecraft:underwater_bonemeals.

Changes

Blocks

Conduits
  • Are now properly waterlogged.

Mobs

Fish
  • Now have a 5% chance of dropping bone meal when killed.
Squids
  • Now spawn only in rivers, oceans, or beaches.

Items

Bone meal
  • When used in water of warm ocean biomes, it now has a chance to grow coral.

Command format

Scoreboards
  • The scoreboard operator %= was changed from using Java's native % to using Math.floorMod. This causes the operator to use floored modulo instead of truncated modulo, so now -1 % 7 wraps to 6 instead of returning -1.[4]
Functions
  • Line numbers in function parse error logs now start with 1 (was 0).

General

  • Performance has been optimized.

Fixes

45 issues fixed
From released versions before 1.13
  • MC-73 – Green arrow bug on maps in frames.
  • MC-1528 – Maps in item frames' markers aren't persistent.
  • MC-96998 – End Cities / Woodland Mansions don't generate completely when interrupting generation
  • MC-112801 – Players on the death screen still cause spawners to spawn.
  • MC-122939 – Statistics for mining banners and beds never increase.
  • MC-128547 – Minecraft keeps previously used World in memory if the player has hit any entity in that world.
From 1.13
  • MC-121369 – Holding ESC while clicking "Multiplayer" returns user to main menu
  • MC-123021 – Crash on open if "Saves" is a link
  • MC-124583 – Cannot place structure void block next to another when right clicking on one
  • MC-125337 – When the double-held trident throws, players will lift both hands
  • MC-130258 – Maps in item frames show shading problems.
  • MC-131397 – Sponges cannot remove water from conduits
  • MC-132451 – Command Parser - invalid value for block property and property name are reversed in error message
  • MC-132769 – Detecting a 2 redstone tick repeater with an observer block creates a 2 redstone tick pulse
  • MC-133181 – Observer's cooldown is broken.
  • MC-133546 – Player becomes "ghost" when dying in the nether or going through the end portal back to the overworld
  • MC-134105 – Can't return from the end after defeating dragon.
  • MC-134159 – Saved world causes crash in 1.13.
  • MC-134667 – Async Chunk Gen dangerously adding entities to world async.
  • MC-134889 – Iron golems spawn in air blocks.
  • MC-134916 – Sound event block.pumpkin.carve doesn't play when carving normal pumpkins.
  • MC-135049 – Old world doesn't save map markers in 1.13.
  • MC-135261/setblock for player heads don't show the texture after the placement.
From the Java Edition 1.13.1 development versions
  • MC-134816 – Crash: Exception ticking world entities
  • MC-134825 – Tab completion/suggestions don't work for some non-literal arguments (in chat)
  • MC-134832 – TNT with unstable=true blockstate is ignited instead of broken in creative mode.
  • MC-134898 – Pressing Escape no longer returns to main menu from singleplayer menu.
From the previous development version
  • MC-134966 – Using /setblock to place an "Always Active" command block with a command won't execute the command immediately
  • MC-134967NullPointerException when placing Wither Skeleton Skulls.
  • MC-134974 – Entities in your world can randomly freeze
  • MC-134982 – Exception when placing a command block.
  • MC-134987 – Renaming a world doesn't update its name until re-entering the world list.
  • MC-134988 – Optimizing a world doesn't update it until re-entering the world list.
  • MC-135039 – The game crashes when /setblock-ing a spawner with an entity ID containing capital letters
  • MC-135053 – Sticky pistons get stuck when receiving a 0 gametick pulse.
  • MC-135136 – Crash when placing a chain command block with set command.
  • MC-135147 – Loading/saving structures with command blocks in them causes errors
  • MC-135172 – Under certain conditions pistons can't be powered for the first 2 gameticks after being moved.
  • MC-135185 – All redstone components can become stuck in a powered state when indirectly unpowered.
  • MC-135186 – Pistons can only be re-pulsed 5 or more gameticks later.
  • MC-135194 – Pistons react 1 gametick too late.
  • MC-135229 – Game crash when opening Furnace
  • MC-135268 – Switching to spectator mode and back creates ghost player duplicates for other players
  • MC-135293 – Profiler doesn't exit section when an entity is removed, causing recursive profiling and lag
Private issues
  • MC-134716 – Minecraft Multiplayer – Player kick exploit.[3]

18w32a

18w32a[5] is the fourth snapshot released for 1.13.1, which adds dead coral and some other features, changes some existing features, optimizes performance, and fixes many bugs.

Additions

Blocks

Dead coral
  • Dead variants of corals.
  • Can be placed on top of blocks.

Gameplay

Statistics
  • New statistics:[6]
    • Damage Dealt (Absorbed) – damage_dealt_absorbed
    • Damage Dealt (Resisted) – damage_dealt_resisted
    • Damage Blocked By Shield – damage_blocked_by_shield
    • Damage Absorbed – damage_absorbed
    • Damage Resisted – damage_resisted
    • Shulker Box Cleaned – clean_shulker_box

Changes

Blocks

Coral
  • Can now be placed in air.
    • Unless adjacent to water, they will turn into dead coral after a short moment.
Purpur stairs and slabs

Items

Bone meal
  • When used in water of warm ocean biomes, it now has a chance to grow coral fans.

General

  • Performance has been optimized.

Fixes

31 issues fixed
From released versions before 1.13
  • MC-1489 – Dismounting a horse with a fence on the player's right leaves the player on the wrong side of the fence.
  • MC-4488 – Mobs don't drop cooked meat if last damage is from fire, lava or fire charge.
  • MC-73361 – Exiting a minecart / boat can put the player outside the border.
  • MC-76649 – Thrown item in hand and as entity
  • MC-81237stat.damageTaken fails to increment when player has absorption.
  • MC-88230 – When feeding a tamed horse or llama with a golden apple/carrot or hay bale, the cursor moves to the right.
  • MC-112533 – Dispenser can equip shield for armor stand without arms.
  • MC-114074 – Some non-full cube blocks don't cull the faces of the same block next to them
  • MC-114246 – Item in offhand of armor stand with arms cannot be taken back.
  • MC-119607 – Llamas, unlike horses, can be kept feeding hay bales even if in love mode.
  • MC-130724stat.damageDealt does not record damage to absorption health.
From 1.13
  • MC-132789 – Unexpected piston behavior when chaining repeaters
  • MC-132806 – You cannot grant/revoke specific advancement criteria because of a colon in its name.
  • MC-132870 – Weird lag with large amounts of entities in 1.13 compared to 1.12.2
  • MC-133158 – Underwater waterlogged blocks still produce water dripping particles.
  • MC-133842 – Crash when getting kicked while in Inventory
  • MC-134392 – Spawers will spawn dolphins inside of solid blocks.
  • MC-134402 – Statistic for cleaning shulker boxes is missing.
  • MC-135079 – Purpur stairs and slabs cannot be crafted using purpur pillars.
  • MC-135126 – Bone meal on underwater grass blocks doesn't spawn sea grass.
  • MC-135468 – Mooshroom disappears when sheared
  • MC-135791 – Mobs glitching out
From the Java Edition 1.13.1 development versions
  • MC-134817 – Collision with shulkers is extremely glitched.
  • MC-135048 – Misplaced sandstone block on desert temple.
  • MC-135457 – Strange placing and removing blocks after respawning, especially redstone system and sands
From the previous development version
  • MC-135381 – Conduits can not be placed outside of water.
  • MC-135385 – Entities fall through the entire world when they are inside blocks.
  • MC-135387 – Chunks are not forced/unforced until a player loads it.
  • MC-135390 – Pistons react inconsistently to certain 4 gametick pulses.
  • MC-135423 – Can't stand on top of boat anymore without glitching.
  • MC-135431 – Scoreboard division is inconsistent with modulo.

18w33a

18w33a[7] is the fifth and final snapshot released for 1.13.1, which adds tooltips to bucket of tropical fish, improves the performance of liquids, and fixes many bugs.

Changes

Items

Bucket of tropical fish
  • Added tooltips.

General

  • Improved the performance of liquids.

Fixes

18 issues fixed
From released versions before 1.13
  • MC-1357 – Logged out players appear on maps
  • MC-3715 – Beds and the /teleport command.
  • MC-67780 – Standing on/flying above a block placed at y:255 makes sky dark
  • MC-79697 – Entities don't render properly when next to invisible spider, charged creeper, or wither boss with armor.
  • MC-86943 – Cooldown overlay is solid white on item stacks of more than 1 item.
  • MC-90842 – Sweep attack knocks back marker armor stands.
  • MC-98796 – Armor loses durability when blocking damage with shield.
  • MC-108592 – Witches do not despawn correctly if they have a potion effect.
  • MC-118258 – Spelling mistakes in the 'Commandblock chain tried to execure more than x steps!' warning message.
From 1.13
  • MC-131346 – It's possible to place buckets of water, lava or fish in adventure mode.
  • MC-132063 – Stone item appears when resizing window.
  • MC-133098 – Loading a world with a corrupted stats file crashes the game.
  • MC-133127 – Drowned from ocean ruins never spawn with a trident, a nautilus shell or a fishing rod.
  • MC-134702 – Fish spawned from buckets count towards the aquatic mob cap.
  • MC-135816 – Trident does not return uppon reload of world.
  • MC-135857 – Beacon effect icon doesn’t have a blue edge if it overwrites a potion effect.
  • MC-135893 – Upgrading from 1.12.2 to a newer version will cause trapped chests placed in 1.12.2 and earlier to stop triggering redstone through the floor.
Private issues

1.13.1-pre1

1.13.1-pre1[8] is the first pre-release for 1.13.1, which renames /chunk to /forceload, improves performance, and fixes a few bugs.

Changes

Command format

General

  • Improved performance of rendering chunks.
  • Improved performance of spawning mobs.

Fixes

16 issues fixed
From released versions before Java Edition 1.13.1
  • MC-31681 – Fog and clouds darken when indoors or under trees (<16 Chunk Render Distance).
  • MC-51150 – Swimming in water, riding a minecart or standing on soul sand and snow layers 8 darkens the sky at day time.
  • MC-109311 – Woodland mansion failed to generate.
  • MC-132457 – Advancement and dimension command suggestions require minecraft namespace.
  • MC-132496 – Passive Mob Spawning Breaks 1.9+.
  • MC-132762 – Observed signal strength observer abnormality.
  • MC-134587 – Using F3+T several times will eventually freeze iMac.
  • MC-135484 – Pressing Q + right click a block while holding a double block only shows the top of the block.
  • MC-135878 – Maps delete recently marked banners upon reopening world.
From the Java Edition 1.13.1 development versions
From the previous development version
  • MC-136051 – Mob spawning ignores light level, biomes and block height.

1.13.1-pre2

1.13.1-pre2[9] is the second and last pre-release for 1.13.1, which improves the performance of flowing liquids and fixes a few bugs.

Changes

General

Performance
  • Improved performance of flowing liquids.

Fixes

8 issues fixed
From released versions before Java Edition 1.13.1
  • MC-80041 – Signs with long text freeze the game.
  • MC-134777 – Using bone meal on kelp doesn't do anything, but still wastes it.
  • MC-136023 – Phantoms attack players in spectator.
  • MC-136157 – Explosion radius increased.
  • MC-136208 – Scute is not affected by doMobLoot.
  • MC-136226 – Mobs require 2 blocks of air to spawn at all times now.
From the previous development version
  • MC-136107 – Water incorrectly flows toward holes/lower levels, even when they're covered.
  • MC-136134 – Wrong tropical fish variants named.

Notes and references

  1. a b "Minecraft Snapshot 18w30a" – Minecraft.net, July 25, 2018
  2. MC-135509; per comments there, some keyboards do not allow pressing those keys at the same time (as they are in the same vertical column, presumably). http://keyboardchecker.com/ can be used to check.
  3. a b "Minecraft Snapshot 18w31a" – Minecraft.net, August 1, 2018
  4. https://www.reddit.com/r/Minecraft/comments/93pmai/minecraft_snapshot_18w31a/e3fkwrj
  5. "Minecraft Snapshot 18w32a" – Minecraft.net, August 8, 2018
  6. Reddit Comment by developer Rockenroll4life
  7. "Minecraft Snapshot 18w33a" – Minecraft.net, August 15, 2018
  8. "Minecraft 1.13.1 pre-release 1" – Minecraft.net, August 16, 2018
  9. "Minecraft 1.13.1 pre-release 2" – Minecraft.net, August 20, 2018