Java Edition 19w36a

19w36a is the third snapshot for Java Edition 1.15, released on September 4, 2019,^[1] which adds many features originally from Bedrock Edition.

Additions

doInsomnia
- Whether phantoms can spawn in the nighttime.
doImmediateRespawn
- Players respawn immediately without showing the death screen.
drowningDamage
- Whether the player should take damage when drowning.
fallDamage
- Whether the player should take fall damage.
fireDamage
- Whether the player should take fire damage.

Trying to sleep in a bed during the daytime now sets the player's spawn location to that bed.

Firework rockets dispensed from a dispenser now travel in the direction they were fired.

Obfuscation maps are now published with all future versions of the game, including this one.
- Does not change the existing restrictions on what may or may not be done with game code or assets.
- Links to the obfuscation mappings are included in the version's accompanying .json file.

Biome information now is stored in sixty-four 4×4 arrays, allowing biomes to be changed based on height; previously, biome values corresponded to only the X and Z coordinates.
- The [Int Array] Biomes array in the [NBT Compound / JSON Object] Level tag for each chunk now contains 1024 integers instead of 256. Each number in the array is the biome for a 4x4x4 volume in the chunk. These 4×4×4 volumes are arranged by Z, then X, then Y. That is, the first 4×4 values in the array are for the 16×16 chunk, at Y-levels 0–3, the next 4×4 is for Y-levels 4–7, etc.

From released versions before 1.15

MC-117914 – Entities crossing dimensions through nether portal causes tremendous lag.
MC-158677 – Ender dragon freezes the server if there is no end stone in the end.
MC-158978 – "Create New World" button in the world creation menu is enabled after returning from the world customize menu, allowing world names to be left blank.

From the 1.15 development versions

MC-159359 – Dispensers ignore honey level when collecting honey from hives/nests.
MC-159370 – Bees suffocate when against a solid block ceiling.
MC-159383 – Copying a bee nest/hive with NBT duplicates the bees inside of it as well, causing multiple bees with the same UUID to exist in the same world at the same time.
MC-159385 – Bees are not affected by Bane of Arthropods enchantment.
MC-159395 – Honey level of bee hives does not increase, as opposed to bee nests.
MC-159424 – Hostile bees will not sting the player if they have a flower in their hand.
MC-159441 – Bees stay leashed when leaving a bee hive, despite having dropped their lead when entering it, thus duplicating the lead.
MC-159515 – Bees do not sleep at night.
MC-159518 – Bees stop their animations when standing still, even when still in the air.
MC-159558 – Bees attempt to sting the player even after they have already stung the player.
MC-159560 – Semi-transparent pixels on bee textures.
MC-159584 – When a bee nest/hive with a bee inside is destroyed on creative, the bees inside disappear.
MC-159743 – Bee textures have inconsistent amounts of nectar.
MC-159880 – Bee duplicate passenger entities when entering and leaving hives.
MC-160008 – Drinking honey bottles does not immediately make a sound.

From the previous development version

Private issues

MC-140507 – Overloading a chunk with data will cause it to revert to its old state.^[1]
MC-159419 – Custom beehive item can be used to spawn any entity, including command blocks.^[1]

Video made by slicedlime: