Java Edition 18w22a

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 "field": "[https://piston-data.mojang.com/v1/objects/0a864719da82dd91bf5d7031cf9c40e5ec3dbfd7/client.jar Client] ([https://piston-meta.mojang.com/v1/packages/a8d3d3213543f0465d5f465f8c1e80a2957eefa3/18w22a.json .json])<br />[https://piston-data.mojang.com/v1/objects/077225ee7bca03f521ed8df86fa4740b8e7a3cad/server.jar Server]",
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 "field": "<span class=\"plainlinks\">[https://en.wikipedia.org/wiki/Java_version_history#Java_SE_8_.28LTS.29 Java SE 8]</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 1.12.2|<span style=\"margin-right:-0.35em\">◄</span>◄  1.12.2]]</td>\n<td style=\"padding: 0.4em\">'''[[Java Edition 1.13|1.13]]'''</td>\n<td style=\"padding: 0.4em\" >[[Java Edition 1.13.1| 1.13.1 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\">\n[[Java Edition 18w21b|◄  18w21b]]\n</td>\n<td style=\"padding: 0.4em\">''' 18w22a'''</td>\n<td style=\"padding: 0.4em\">\n[[Java Edition 18w22b| 18w22b ►]]\n</td>\n</tr>\n</table>"
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18w22a is the fortieth snapshot for Java Edition 1.13, released on May 29, 2018^[1].

Leaves

• Version exclusive: Naturally-generated leaves now survive at a distance of up to 6 blocks from logs, instead of 4.
  • The block state for leaves changed from a check_decay and decayable booleans to distance (ranging from 1 to 7) and a persistent boolean.

Turtle eggs and sea pickles

• Adding one more to an existing stack fails if it would cause a player to be inside their hitbox.
• Now makes placement sounds when the amount in a stack is increased.
• Can place more in a stack by aiming at adjacent blocks.
• Right-clicking no longer animates the hand.
• Sea pickles now require a supporting block.

Drowned

• Now have a swimming animation.

• Changed the tropical fish bucket texture from 👁 Image
  to 👁 Image
  .
• Changed the creamy horse's texture.
• Changed the texture of iron horse armor when equipped.

30 issues fixed

From released versions before 1.13

• MC-1809 – Some trees generate with leaves too far from logs
• MC-91245 – One character namespaces are treated as "minecraft:"

From the 1.13 development versions

• MC-121823 – Using "destroy" command on containers does not drop stored contents
• MC-121900 – Player data output does not show SelectedItem and is invalid in a data path
• MC-122153 – /gamemode does not provide success message
• MC-122455 – Disappearing Carpets
• MC-122531 – Particle command shows numeral ids in the command feedback
• MC-122663 – "Shape: ascending" rails change state to normal (flat on the block) when top rail is removed
• MC-122787 – Rails placed to the east or south of curved rails break existing connections
• MC-123064 – No error message when saving a structure containing uppercase or other invalid characters
• MC-124281 – White dot on the creamy horse's tail
• MC-124357 – Green pixels on iron horse armor
• MC-124417 – Can't use custom blockstates for leaves in resource packs
• MC-125745 – Sniper duel advancement can be achieved with trident, but the description implies only arrows may be used
• MC-125986 – Rails adjacent to chunk borders update if world is loaded in snapshot
• MC-126118 – The fish mobs are missing their translation strings
• MC-127156 – Ocelots and parrots don't spawn naturally
• MC-127386 – Right clicking on villager with its spawn egg opens trade menu
• MC-128393 – Conduit connects to iron bars and glass panes
• MC-128509 – X-axis portals break when upgrading from 1.12.2 when certain blocks are above/near them
• MC-128512 – Certain blocks on chunk borders cause many blocks in the same chunk to be updated when upgrading from 1.12.2
• MC-128856 – Sea pickles and turtle eggs can't have their count increased by placing additional units against neighboring blocks
• MC-129309 – Players are able to walk through turtle eggs
• MC-129645 – Particles of downwards bubble columns are not centered
• MC-129712 – Team Prefix and Suffix reset after restarting world
• MC-129717 – Can use sea pickles to glitch through ceilings
• MC-129722 – Attempting to place more sea pickles or turtle eggs when there are already four still animates the hand
• MC-130015 – Tropical fish bucket contains inconsistent dark pixel
• MC-130197 – Over a 1000 dolphins spawning in a range of 100 blocks at a certain height

From the previous development version

• MC-130242 – Having an id tag in the tag tag of spawn eggs overwrites the spawned entity's id

• Unlike most of the first-of-the-week snapshots, this was released on a Tuesday instead of Wednesday.
• 18w22a was released exactly 2 years before 20w22a.
• The Update Aquatic menu panorama screen was created in this snapshot.