Java Edition 1.13-pre5

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1.13-pre5 is the fifth pre-release for Java Edition 1.13, released on June 28, 2018.^[1]

• Upgrade path optics code is now in a separate library, datafixerupper.^[2]

The "Flattening"

• Changed some of the names of entities:

• Changed some of the names of blocks:

• Changed some of the names of items:

• Renamed a lot of IDs to be more consistent with the game:

• Changed the file paths for some textures:

• Changed the names of some sound events:

48 issues fixed

From released versions before 1.13

• MC-52166 – Lowering height by one block causes fall damage even with water brake.
• 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-119901 – Slow scrolling in the controls menu.
• MC-127334 – Superflat biome id still uses numeral id, rather than named id.

From the 1.13 development versions

• MC-122311 – Game crashes after "Backup and Load".
• MC-122473 – Game crashes when resource pack selected (path of location: minecraft:blocks/stone frame).
• MC-124027 – Default singleplayer player data is not written or read to level.dat anymore.
• MC-124167 – Disabled data packs still override vanilla structures (e.g. igloo).
• MC-124545 – Malformed JSON as 'name' value for 'show_entity' hoverEvent causes crash.
• MC-124546 – /datapack disable <pack> only works in the overworld.
• MC-124970 – Selector argument values beginning with "!" show an error despite them being a valid prefix.
• MC-124990 – Inverted tab-suggestions for argument values in entity selectors do not display gray text in chat input line.
• MC-125038 – New world generation doesn't populate edges of old world.
• MC-125729 – Moving frosted ice preempts melting even under correct conditions.
• MC-125807 – Block ids are inserted wrongly into chunk section block palettes.
• MC-125900 – Sky light levels underground too high (since 18w05a).
• MC-126081 – Mousepointer is not captured.
• 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 blobs significantly lower in 18w versions.
• MC-126508 – Crash: Exception in thread "main" java.lang.UnsatisfiedLinkError: Failed to dynamically load library.
• MC-126569 – Underwater Ruins Floating in the water.
• MC-126599 – Failed to save chunk java.lang.NullPointerException: null.
• MC-126723 – Some mobs presenting a swimming state in the wrong place.
• 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-126964 – Fish mobs, guardians and dolphins cannot properly swim in the waterlogged blocks.
• MC-127017 – Coral Plants don't break if the block underneath them is removed.
• MC-127803 – Falling down with elytra active and looking upwards the player falls through the world.
• MC-129527 – Drowned overlay turns dark blue when wearing enchanted armor.
• MC-130182 – Can't open world from 1.12.
• 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-130887 – Crash with cartographers: Loading entity NBT.
• MC-131088 – Corrupted chunk in the middle of an already generated ocean monument after updating from 18w16a to 1.13-pre1.
• MC-131094 – Projectiles ignore collisions for ~1 block after spawned.
• MC-131239 – Stained glass, iron bars, and brewing stands show up on maps even when there is no block beneath it.
• MC-131409 – Reins appear while riding non-saddled horses.
• MC-131599 – Opening player inventory with visible recipe book after using beacon causes crash.
• MC-131739 – Data generators sometimes hang forever (and always wait to exit after finishing) due to data fixers.
• MC-131857 – Dragon death effects keep going.
• MC-132002 – Ender dragon respawns when upgrading from 1.12 to 1.13-pre3.

From the previous development version

• MC-132064 – Swimming state does not end when teleporting / jumping out of water.
• MC-132073 – Creating a new world fails "Writing into PalettedContainer from multiple threads" - Bug in JRE 1.8.0_25.
• MC-132139 – 1.13-pre4 crash: Failed to locate library: lwjgl_opengl32.dll.
• MC-132144 – Using bone meal on bottom log of tree grown from sapling consumes bone meal.