Skip to Main Content

Minecraft Snapshot 18w15a

A Minecraft Java Edition snapshot

You've already seen the header image. Do we even need to say anything else?

Changes in 18w15a

  • New entity: Dolphins
  • New block: Conduit
  • New block: Blue Ice
  • New item: Heart of the Sea
  • New item: Nautilus Shell
  • Icebergs now generate in frozen oceans
  • You no longer have "night vision" effect underwater
  • Water now has different colours based on the biome
  • New video option: Biome blend distance
  • Going in and out of swimming should now feel smoother
  • You can now swim through 1x1 holes! Again!
  • Fog colour underwater now changes much smoother between biomes
  • Optimized fog rendering
  • Light now goes much further through liquid blocks


It's happening!

  • Spawns in any ocean that isn't frozen
  • They're just cute, okay?
  • Dolphins are very playful and love floating items
  • They also love to chase after boats
  • If you upset one, you upset them all
  • More behaviours coming soon


Blubb blubb blubb blubb

  • Water now only blocks 1 light per block, instead of 3
  • This only affects newly placed water - we will relight all chunks in an upcoming snapshot
  • Every ocean biome has a unique water colour, and swamps are icky and gross
  • In newly generated chunks, you're less likely to find frozen ocean next to warm ocean (and similar)



  • ????
  • I'm not sure.
  • What is this?
  • Where are we?

Fixed bugs in 18w15a

  • MC-25866 - Splash Potion of Saturation has no effect
  • MC-63714 - Zombie Pigmen get angry when hit in creative
  • MC-121479 - Clicking on world, save and quit to title and quit buttons freeze the game for a second
  • MC-122354 - Flying with elytra crash game / kicks player
  • MC-123585 - Closing world while debug pie chart is open causes crash
  • MC-123853 - Mobs don't burn when standing in double plants/cobweb
  • MC-124906 - Underground lava and water lakes and mob spawners generate with air instead of Cave air (cave_air)
  • MC-124915 - /locate and eye of ender find strongholds in invalid places
  • MC-124918 - Biome-specific structures generate at wrong biomes in superflat
  • MC-124953 - Vines generate beneath jungle at y-level 64
  • MC-125083 - New world generator doesn't generate snow on trees in snow biomes
  • MC-125106 - Liquids in generated structures don't update
  • MC-125188 - Releasing the sprint button will no longer stop sprinting until you touch the ground
  • MC-125195 - Spectator mode will still allow the swimming animations
  • MC-125219 - Logs do not retain their rotation when stripping them
  • MC-125240 - Player is unable to swim through one-high water with a solid block above
  • MC-125530 - Swimming while touching ground shakes viewport if View Bobbing is enabled
  • MC-125578 - Splash turtle potions missing "splash" in translation
  • MC-125579 - Tipped turtle potion arrows inconsistently capitalize "The"
  • MC-126087 - In creative mode, fish buckets are used when placing the fish
  • MC-126097 - Will not drop the grilled fish, when cod and salmon are burned to death
  • MC-126185 - Fish unrestricted spawning causing world to inevitably crash from the number of entities
  • MC-126557 - Sea grass, kelp and coral can be generated on crevices
  • MC-127276 - Zombie transform to Drowned in less than waist-high water

Get the snapshot

To install the snapshot, open up the Minecraft Launcher and enable snapshots in the "Launch Options" tab.

Snapshots can corrupt your world, please backup and/or run them in a different folder from your main worlds.

Cross-platform server jar:

Report bugs here:

Nathan Adams
Written By
Nathan Adams

Community Creations

Discover the best add-ons, mods, and more being built by the incredible Minecraft community!