Java Edition 15w49a

{
 "title": "15w49a",
 "images": [
 "15w49a.png",
 "Java Edition 15w49a.png"
 ],
 "rows": [
 {
 "field": "''(link to Java Edition article, displayed as Java Edition)''",
 "label": "(link to Edition article, displayed as Edition)"
 },
 {
 "field": "December 2, 2015",
 "label": "Release date"
 },
 {
 "field": "(link to Snapshot article, displayed as Snapshot)",
 "label": "(link to Version types article, displayed as Type)"
 },
 {
 "field": "(link to Java Edition 1.9 article, displayed as 1.9)",
 "label": "Snapshot for"
 },
 {
 "field": "[https://piston-data.mojang.com/v1/objects/16e868a098239c16ecde3f06865eaf1995c11445/client.jar Client] ([https://piston-meta.mojang.com/v1/packages/4ccaa5b6ce63f7863d8535e85069581c0f04c3ab/15w49a.json .json])<br />[https://piston-data.mojang.com/v1/objects/63e4904766e1af15c1a4a412ec3aeb9c5972176d/server.jar Server] ([https://piston-data.mojang.com/v1/objects/d444f3e1f18d0c15d7ee5e6f439a51859632a02f/windows_server.exe .exe])",
 "label": "(link to Tutorial:Installing a version#Manual version installation article, displayed as Downloads)"
 },
 {
 "field": "90",
 "label": "(link to Protocol version article, displayed as Protocol version)"
 },
 {
 "field": "151",
 "label": "(link to Data version article, displayed as Data version)"
 },
 {
 "field": "2",
 "label": "<span style=\"white-space: normal;\">(link to Pack format#List of pack formats article, displayed as Resource pack format)</span>"
 },
 {
 "field": "<span class=\"plainlinks\">[https://en.wikipedia.org/wiki/Java_version_history#Java_SE_6 Java SE 6]</span>",
 "label": "<span style=\"white-space: normal;\">Minimum Java version</span>"
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 "invimages": [],
 "footer": "<table style=\"margin: auto; word-break: break-word;\">\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\" >[[Java Edition 1.8.9|<span style=\"margin-right:-0.35em\">◄</span>◄  1.8.9]]</td>\n<td style=\"padding: 0.4em\">'''[[Java Edition 1.9|1.9]]'''</td>\n<td style=\"padding: 0.4em\" >[[Java Edition 1.9.1| 1.9.1 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\">\n[[Java Edition 15w47c|◄  15w47c]]\n</td>\n<td style=\"padding: 0.4em\">''' 15w49a'''</td>\n<td style=\"padding: 0.4em\">\n[[Java Edition 15w49b| 15w49b ►]]\n</td>\n</tr>\n</table>"
}

15w49a is the forty-fourth snapshot for Java Edition 1.9, released on December 2, 2015.^[1]

Sound events

• Added block.furnace.fire_crackle.
• Added block.waterlily.place.
• Added entity.cow.milk.
• Added entity.hanging.place (removed in 15w49b).
• Added entity.hanging.pop (removed in 15w49b).
• Added entity.itemframe.add_item.
• Added entity.itemframe.break.
• Added entity.itemframe.place.
• Added entity.itemframe.remove_item.
• Added entity.itemframe.rotate_item.
• Added entity.leashknot.place.
• Added entity.painting.break.
• Added entity.painting.place.
• Added entity.snowman.ambient.
• Added entity.snowman.death.
• Added entity.snowman.hurt.
• Added entity.squid.ambient.
• Added entity.squid.death.
• Added entity.squid.hurt.
• Added item.armor.equip_chain.
• Added item.armor.equip_diamond.
• Added item.armor.equip_generic.
• Added item.armor.equip_gold.
• Added item.armor.equip_iron.
• Added item.armor.equip_leather.
• Added item.bottle.fill.
• Added item.bottle.fill_dragonbreath.
• Added item.bucket.empty.
• Added item.bucket.empty_lava.
• Added item.bucket.fill.
• Added item.bucket.fill_lava.
• Added item.chorus_fruit.teleport.
• Added item.hoe.till.
• Added item.shovel.flatten.

Statistics

• aviateOneCm: Tracks the distance a player has glided using elytra.

Activator rails & powered rails

• No longer transmit power to each other.

Beacon

• Now drops any contained item when exiting the GUI.
• No longer accepts items from hoppers.
• PaymentItem tag removed.

Cactus

• Breaks if lava is adjacent.
• Cactus on sand breaks if water or lava is in the block above.

Cobweb

• Now catches snowballs, eggs, thrown potions, XP bottles, and ender pearls, causing the item form of the projectile to be dropped.
  • Removed in 15w49b.

Crops & nether wart

• Hitbox now changes as the plant grows.

Doors

• Are now placed facing left/right depending on which half of the block the player clicks on, unless neighboring doors cause them to place a certain way.

End crystals

• Now require air or replaceable blocks in the two blocks above the block it's being placed on.
• Can no longer be placed to intersect other entities.

Fire

• Chance of going out in rain increased by 20 percentage points (now 20% + 3 percentage points per age).

Furnace

• The lit_furnace block is no longer available as an item.

Lily pads

• Bounding box changed, now 15/256 high (from 1/16) and inset from three edges of the block by 1/16.

Pistons

• Unextended pistons, downward-facing pistons, and upward-facing piston extensions are now considered to have a solid top surface, like upside-down stairs and top-half slabs.
  • Among other things, this means mobs can now spawn on them.

Tripwire and tripwire hooks

• Removed the distinction between "suspended" and "non-suspended": formerly, tripwire would work only if the whole stretch and both hooks were all above solid blocks or all not above solid blocks.

Trapped chest

• Now appears in the Redstone tab of the Creative inventory instead of Decoration Blocks.

Elytra

• Increased damage when flying into a wall.

Melons

• Melons and glistering melons are now oriented the same way (removed in 15w49b).

General

• Improved pathfinding
• Knockback no longer apply on the Y-axis of gliding and falling entities.^[2]

Cave spiders, endermites, magma cubes, silverfish, slimes, spiders, wither skeletons, zombies, zombie pigmen

• Now fight back when hit by other mobs.

Ender dragon

• Can no longer ride anything.
• Can no longer have status effects.

Enderman

• Can no longer pick blocks from behind walls.

Horse

• Now rotates with the player.

Shulker

• No longer float above the ground.

Skeleton

• No longer find shade to hide under if equipped with a helmet.

Snow golem

• Using shears on a snow golem removes the pumpkin head (and removes 1 durability from the shears).
  • The pumpkin is not dropped.

Wither

• No longer teleports through Nether portals or End portals.

Arrow entity

• Now take the thrower's motion into account. For example, an arrow fired forward by a player in a speeding minecart flies faster relative to the ground, an arrow fired backward flies slower, and an arrow fired sideways has motion in the direction of minecart travel.
• Arrows that bounce off a target (e.g. a shield or a sitting dragon) and may be retrieved become dropped items if near zero momentum after being bounced.

Bottles o' enchanting, eggs, ender pearls, snowballs, thrown potions

• No longer collide with non-opaque blocks.
  • Even non-opaque blocks that are solid, such as glass (see MC-93636).
• Are "caught" and converted to the item form by cobwebs.
• Now take the thrower's motion into account. For example, an arrow fired forward by a player in a speeding minecart flies faster relative to the ground, an arrow fired backward fly slower, and an arrow fired sideways has motion in the direction of minecart travel.

SmallFireball entity

• No longer damages (or angers) fire-immune entities.

End portal

• In the 0.0000000001% chance that all 12 frame blocks generate with eyes already present, the portal is immediately activated.
  • This means once again, it is possible to access the End without going to the Nether.

/playsound

• Now auto-completes itself when pressing .

/particle

• Now has an optional player parameter to specify which players can see the particle when inside the range. When left out, everyone in range can see the particles.
  • Also added a params parameter to specify particle parameters (for iconcrack_, …).

Sound events

• Renamed entity.arrow.successful_hit to entity.arrow.hit_player.

Combat

• Sweep attacks now do 1HP👁 💔
  damage to mobs affected by the knockback.
• The Infinity enchantment no longer affects spectral and tipped arrows.

Exhaustion

• Sneaking now increases exhaustion by half as much as walking.

Frost Walker enchantment

• Now functions whenever the player is standing on ground, regardless of whether the ground is a solid block or not.
• No longer works on armor stands.

Lightning

• No longer destroys item frames, leash knots, paintings, and armor stands.

Status effects

• Health Boost effect now shows multiple red hearts instead of the one similar to Regeneration.
• Absorption effect now shows a single red heart with a yellow outline around it.
• Nausea effect now stops instantly when cleared using milk or with commands.

94 issues fixed

From released versions before 1.9

• MC-729 – Zombies fight back only against players.
• MC-1973 – Items placed into a beacon are lost upon reloading a world.
• MC-3626 – Signs, sugar cane, vines, two-block plants and cobwebs cause glitchy mob behavior.
• MC-7519 – Clearing Nausea potion effect stops it, but purple portal tint remains.
• MC-8017 – Throwing eggs and snowballs though cobweb just hits it and breaks.
• MC-9074 – Command selector syntax does not recognize decimals.
• MC-18272 – Health Boost and Absorption effects have the same icon.
• MC-20431 – Player is floating above the saddle of a donkey.
• MC-33863 – Villagers rarely can turn to baby zombie villagers, or chicken jockey.
• MC-38307 – Lightning strike area-effect destroys item frames, paintings, and armor stands.
• MC-39098 – Endermen can pick up blocks behind walls.
• MC-46034 – Lava flows toward gaps even if they can't be reached.
• MC-48570 – Server-side resource packs do not show up in resource pack list.
• MC-50468 – Skeleton AI ignoring helmet – skeleton still stays in shadow.
• MC-50559 – Rain texture is upside-down.
• MC-55942 – Nether wart, wheat, carrot, and potato hitboxes reflect only first stage.
• MC-63129 – Baby zombies named "Dinnerbone" appear suspended in the air.
• MC-69328 – /playsound not tab-completing sounds.
• MC-69834 – Metal ring misplaced at tripwire hook/does not move.
• MC-70327 – Blaze fireballs damage other blazes.
• MC-72156 – Tamed wolves attack when a wild wolf is hurt.
• MC-72368 – Cactus can be placed underwater, but doesn't break.
• MC-73370 – Trapped chests are in "Decoration Blocks".
• MC-75471 – Ocelots and rabbits run from you in Creative mode.
• MC-76045 – Clicking on a non-existing link target or deleted screenshot gives an error.
• MC-76975 – Pick block doesn't work on the dragon egg.
• MC-77224 – /tp with relative x rotation above 90° affects y rotation.
• MC-80148 – Custom model lighting irregularities (top & bottom faces)/each cuboid part of a model renders smooth lighting as if it were a full block.
• MC-80597 – Lit furnace still obtainable using the /give command.
• MC-81693 – Multiple items have missing (transparent) pixels.
• MC-81725 – + menu remains on server disconnect.
• MC-82452 – Server resource packs not staying persistent.
• MC-85963 – Melon and glistering melon textures have different rotations.
• MC-87219 – Mob heads float above baby zombies that wear them.
• MC-89399 – If an End portal generates with 12 eyes in it, it is impossible to use it.
• MC-92983 – Slimes are incorrectly offset from actual position.
• MC-93289 – Level-up sound originates at position in world, not at player position.

From the 1.8 development versions

• MC-62552 – FallingSand shows alternate block textures while falling.
• MC-70306 – Can't put flower pot on piston.

From the 1.9 development versions

• MC-83107 – Shulkers deflect arrows from the side but not the top; arrows glitchy when shot at the edge.
• MC-83174 – Zombies, zombie pigmen, ghasts, guardians, slimes, magma cubes, wither skeletons, spiders, cave spiders, silverfish and endermites do not attack when hit by other mobs.
• MC-83193 – Punching cake eats it.
• MC-83271 – Bosses are unaffected by potions or tipped arrows.
• MC-83599 – Arrow/item in offhand is still displayed while drawing bow in first person view.
• MC-83824 – Infinity enchantment works with potion tipped arrows.
• MC-83850 – Squid and ghasts are unaffected by levitation.
• MC-83896 – Shulkers can teleport into other shulkers.
• MC-83930 – End City spawns even when "Generate Structures" is set to false.
• MC-85117 – Shulkers teleport even after they're already dead.
• MC-85256 – Cauldrons are filled with water while snowing in biomes where it snows only above a certain height.
• MC-85756 – Blocks/items on mobs' heads turn red when the mob takes damage.
• MC-86305 – AreaEffectCloud can be pushed by pistons.
• MC-86385 – Leading zeroes omitted in tooltip on dyed leather armor color.
• MC-86951 – Drop item scoreboard objective increases when /give is used.
• MC-86992 – A shulker floats a bit above ground.
• MC-87143 – /setblock signs with text put "null" on empty lines when reloading the world.
• MC-87242 – Librarian zombie villager robe texture is sometimes white instead of transparent.
• MC-87383 – Shulker hitbox height is too high.
• MC-87411 – Zombie villager leg has transparent pixels
• MC-87568 – Slimes with levitation can move.
• MC-87573 – Spawned slimes always move south (+Z) first.
• MC-88401 – Arrow blocked by shield can get stuck above the player.
• MC-88465 – Shields still show metadata in the tooltip.
• MC-88569 – Armor slots inconsistency: /replaceitem refers to 'chest' while AttributeModifiers.Slot refers to 'torso'.
• MC-89181 – AreaEffectCloud does not work with some particles, crashes with others.
• MC-90095 – Elytra goes invisible with player if potion is used.
• MC-90417 – Enderdragon can be a passenger on boats.
• MC-90549 – Taking damage while gliding pushes you upwards.
• MC-90587 – Frost Walker does not work on transparent blocks.
• MC-90601 – Using pick block on frosted ice gives a warning in the console.
• MC-90606 – Damage from hitting walls with Elytra is too small.
• MC-91061 – Loot table exceptions are not caught.
• MC-91177 – Rain puts out fires less often.
• MC-91264 – Right clicking a hoe or a shovel on grass or dirt plays the wrong sound.
• MC-91533 – Container minecarts with invalid loot table cannot be removed from world.
• MC-91543 – Multiple (unlimited) number of ender crystals placeable on one block at the same time.
• MC-91666 – Exploding creepers drop gunpowder when they set off an End crystal.
• MC-91756 – Beam target of End crystals on obsidian pillars does not update when ender dragon spawn sequence is stopped.
• MC-91807 – Having used the /kill @e[type=EnderCrystal] instruction, the rebirth ceremony still continued execution.
• MC-92202 – Villagers stand outside opening and closing doors instead of entering.
• MC-92225 – Buggy AI for skeletons riding horses.
• MC-92309 – "Block Broken" closed caption is inaccurate.
• MC-92415 – Mob pathing issue – they appear to stop and travel in loops.
• MC-92451 – Beam detaching from End crystal as crystal levitates up and down.
• MC-92548 – Can't place certain blocks on marker armor stand.
• MC-92697 – Activator rails and powered rails power each other.
• MC-92784 – Some subtitles are unrelated to the sound.
• MC-92849 – Mob kills due to knockback from a sweep attack fail to reward experience.
• MC-92972 – Villagers don't go outside.
• MC-93107 – Shulkers still produce sound even when Silent:1b.
• MC-93474 – Players can place End crystal in Adventure mode.

From the previous development version

• MC-93118 – Some of the new textures' filesize is too big.
• MC-93119 – Survival player can obtain bedrock item.
• MC-93167 – Some textures jump and change rotation as the player moves closer or farther from them – easy to confirm with netherack in the Nether.

• 15w49a was previously removed from the launcher for some time, but was added back in September 2018.