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  1. Minecraft: Java Edition
  2. MC-160939

Biome borders change when upgrading a world to 1.15

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    • Icon: Bug Bug
    • Resolution: Works As Intended
    • None
    • 19w37a
    • None
    • Confirmed
    • World generation
    • Important

      The bug

      When opening a world from 1.14.4 (or earlier) in 1.15 (since 19w36a), the biome orders change. This is probably a side effect of the Minecraft save files now supporting three-dimensional biomes, and as such probably intentional.

      This is problematic since it breaks farms that are based on only allowing spawning places in a certain biome.

      To reproduce

      1. Create a new world with the seed 5611121500148513396 in 1.14.4
      2. Run /tp @s -1261.5 131 132.5
      3. Turn "Biome Blend" off
      4. Look at the biome borders
      5. Close the world and open it again in 1.15
        The biome borders change

        1. 19w37a.png
          19w37a.png
          4.86 MB
        2. 1.14.4.png
          1.14.4.png
          4.91 MB

            fry [Mojang] Georgii Gavrichev
            violine1101 [Mod] violine1101
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              Created:
              Updated:
              Resolved:
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