Java Edition 19w37a

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 "title": "Minecraft 19w37a",
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 "field": "September 11, 2019",
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 "field": "(link to Snapshot article, displayed as Snapshot)",
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 "footer": "<table style=\"margin: auto; word-break: break-word;\">\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\" >[[Java Edition 1.14.4|<span style=\"margin-right:-0.35em\">◄</span>◄  1.14.4]]</td>\n<td style=\"padding: 0.4em\">'''[[Java Edition 1.15|1.15]]'''</td>\n<td style=\"padding: 0.4em\" >[[Java Edition 1.15.1| 1.15.1 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\">\n[[Java Edition 19w36a|◄  19w36a]]\n</td>\n<td style=\"padding: 0.4em\">''' 19w37a'''</td>\n<td style=\"padding: 0.4em\">\n[[Java Edition 19w38a| 19w38a ►]]\n</td>\n</tr>\n</table>"
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19w37a is the fourth snapshot for Java Edition 1.15, released on September 11, 2019,^[1] which adds some more features originally from Bedrock Edition.

Campfires

• Can now be extinguished with a shovel.

Farmland

• Blocks that can be manually placed on farmland without turning it into dirt can now also be pushed into it by a piston without turning the farmland under the block the piston has pushed into dirt.

Large ferns

• Now drop wheat seeds.^[2]

Boats

• When used as fuel, one boat now smelts 6 items in a furnace, blast furnace, or smoker instead of 1.

Mob spawning

• 5% of cows, sheep, pigs, and chickens spawn as babies.
• 10% of wolves, llamas, and horses spawn as babies.

Advancements

• Item predicate in advancements now makes a distinction between actual enchantments and stored enchantments, like ones stored in enchanted books.
  • stored_enchantments is used to match stored enchantments.

34 issues fixed

From released versions before 1.15

• MC-2958 – Custom mobs and normal vexes drop equipped items with looting despite DropChances being set to 0.
• MC-13884 – Hanging snow golems don't throw snowballs
• MC-42248 – Placing lily pads does not have a hand animation in third-person.
• MC-60634 – Spawn egg use animation not shown when using on animal.
• MC-88014 – Interacting with shears on sheep always uses item in off-hand as well.
• MC-93827 – Clicking with meat on wolf / fish on ocelot to breed also causes it to sit / stand up.
• MC-93841 – Right clicking on a tamed wolf, ocelot or parrot causes it to sit / stand up and uses item.
• MC-99779 – Right-clicking creeper with flint and steel uses item in off-hand as well.
• MC-110907 – Curse of vanishing does not work in some places.
• MC-114715 – Mobs picking up items can drop their current item even when the drop chance is set 0.
• MC-123307 – /execute store can modify player data inside item "tags" of their Inventory or EnderItems.
• MC-123686 – Old chests disappear when updating to 1.8+.
• MC-125880 – Recipe book rejects bows with Damage:0 tag when crafting dispensers.
• MC-127094 – Arm animation is not executed in certain circumstances.
• MC-135098 – Animal spawn eggs occasionally spawn baby animals.
• MC-136352 – Tools from creative inventory/crafting do not have Damage:0 set until relog.
• MC-136470 – Buckets' CanPlaceOn NBT check is applied to the block behind.
• MC-145179 – /data modify modifies player item data but shows error message.
• MC-152751 – Horse armor can occasionally be duplicated when killing a horse wearing it with a weapon enchanted with Looting III.
• MC-153661 – Villagers always ring bells in the same direction, even if that should not be possible.
• MC-154873 – When breaking a block with an enchanted book with Silk Touch on it, the block drops itself.
• MC-157494 – Tamed animals no longer teleport to players properly.
• MC-158853 – Chests missing after converting and loading an old map from 1.7.10.
• MC-159182 – Breaking boats in a world converted from alpha to beta to release 1.8 to release modern versions doesn't drop the boat.
• MC-159785 – Cloned block contains same item in memory.
• MC-160123 – Large ferns no longer drop seeds.

From the 1.15 development versions

• MC-159455 – Mob riding item frame riding mob crashes the server when the item frame breaks.
• MC-160248 – Slime and magma cube spawners crash the game.

From the previous development version

• MC-160456 – Bee hives filled with honey are missing their top and bottom texture.
• MC-160458 – Using a portal in an older world creates a new portal instead of teleporting to an existing one.
• MC-160461 – When being activated with redstone, bells always ring in the same direction, even if that should not be possible.
• MC-160464 – New gamerules introduced in snapshot 19w36a default to false in worlds from older versions.
• MC-160484 – Placing wet sponges in the nether does not update redstone.
• MC-160498 – /gamerule fireDamage being set to false does not prevent lava damage.