Java Edition 14w18a

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 "field": "[https://piston-data.mojang.com/v1/objects/9f9457fa624e797ee8b7fd409abd4843548affc5/client.jar Client] ([https://piston-meta.mojang.com/v1/packages/108308cc8f8d1e28710926710c123a2be4247971/14w18a.json .json])<br />[https://piston-data.mojang.com/v1/objects/48d6b3b47e870f61a95645e2bc1a84a27a1da068/server.jar Server] ([https://piston-data.mojang.com/v1/objects/49dd5660a0764d03dd02c7149c4c8b56e1142b69/windows_server.exe .exe])",
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 "field": "1",
 "label": "<span style=\"white-space: normal;\">(link to Pack format#List of pack formats article, displayed as Resource pack format)</span>"
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 "field": "<span class=\"plainlinks\">[https://en.wikipedia.org/wiki/Java_version_history#Java_SE_6 Java SE 6]</span>",
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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 1.7.10|<span style=\"margin-right:-0.35em\">◄</span>◄  1.7.10]]</td>\n<td style=\"padding: 0.4em\">'''[[Java Edition 1.8|1.8]]'''</td>\n<td style=\"padding: 0.4em\" >[[Java Edition 1.8.1| 1.8.1 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\">\n[[Java Edition 14w17a|◄  14w17a]]\n</td>\n<td style=\"padding: 0.4em\">''' 14w18a'''</td>\n<td style=\"padding: 0.4em\">\n[[Java Edition 14w18b| 14w18b ►]]\n</td>\n</tr>\n</table>"
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14w18a is the twentieth snapshot for Java Edition 1.8, released on April 30, 2014.^[1]

Pistons and slime blocks

• Slime blocks now push and pull blocks adjacent when connected to sticky pistons.
  • Connected to normal pistons, slime blocks only push blocks, but don't pull them.
  • Up to 12 slime blocks connected to a piston in any arrangement can be moved as long as the following conditions are met: blocks do not disrupt the chain, non-movable blocks are not in the way and slime blocks are not attached to the piston itself.
  • Follows all the rules that pistons follow, for example, blocks which can normally be moved by pistons can be moved if attached to slime blocks.
• Extending a piston with a slime block on top of it launches the entity (mobs, players, items, launched arrows, etc.) into the air.^[2]

Torches

• Can now be placed on stained glass.

38 issues fixed

From released versions before 1.8

• MC-2346 – Hitbox of anvil not proportional.
• MC-3631 – Creepers float one-eighth of a block above the ground.
• MC-9553 – Wrong rendering order of particles, hitboxes, clouds, transparent blocks and breaking animations.
  • Fixed partially: Only particle rendering is fixed.^[3][4]
• MC-31728 – Resource pack glitch on shaders.
• MC-32017 – Maps issue + super secret settings.
• MC-34648 – Torch not placeable on stained glass.
• MC-36103 – Nether portal block invisible in front of another nether portal block.
• MC-47811 – The bottom texture of non-full blocks is flipped vertically.

From the 1.8 development versions

• MC-46776 – When only a Spectator stays near mobs, they don't despawn.
• MC-48831 – "Reeds" model displays incorrectly.
• MC-48954 – When you kill invisible horse variants, the screen will turn red/black.
• MC-50073 – It is possible to change the missing block model.
• MC-50201 – Minecart glitch on rails.
• MC-50239 – Pick block on hydrated farmland gives dirt block with invalid data value (missing texture).
• MC-50510 – Burning furnace (Block 62) has wrong inventory image.
• MC-51379 – Rails render from below, but not correctly.
• MC-51934 – Lapis-Lazuli ore pick block.
• MC-52814 – dropper spawns items inside of itself with no velocity causing them to fly everywhere.

From the previous development version

• MC-53370 – Any stone slabs on top of one another creates a double stone block.
• MC-53371 – Respawn button does not work if spawnpoint is outside of the world border.
• MC-53375 – Sheep give other color when sheared.
• MC-53381 – Player takes damage when world border is nearer than 179 blocks
• MC-53390 – Maximum value for the /worldborder command too low (30 million instead of 60 million).
• MC-53401 – redstone overlay gets tinted.
• MC-53405 – Singleplayer menu: only one click loads world.
• MC-53412 – The world border stops the player one block further away from the center in south/east direction.
• MC-53419 – Unable to create/load new heavily customized world.
• MC-53434 – Can place blocks outside world border.
• MC-53442 – /worldborder missing string: commands.worldborder.setSlowly.success.
• MC-53460 – Redstone gives off no particles when being broken.
• MC-53464 – Scrollbar in all lists act weird/unresponsively.
• MC-53493 – Minecraft crashes when setting FixedBiome to hell.
• MC-53514 – Lava oceans setting does not work in customized world type.
• MC-53570 – Barrier particles fight for attention.
• MC-53580 – Crafting wool/clay/glass/[wolf] collars results in the wrong color.
• MC-53616 – River generation dramatically increased in default world generation.
• MC-53773 – Cannot respawn outside world border.
• MC-53918 – Double-clicking server in server list no longer does anything.

• 14w18a was previously removed from the launcher for some time, but was added back in September 2018.