Have a random snapshot! In this snapshot, we've replaced the random number generator used for world generation, which makes more seeds come out as different... but it also moves everything around in the world, so expect all worlds to look different in this snapshot.
Another thing that we've replaced is the cubemap - the spinning image that you see behind the main menu. It's pretty sweet!
Also, in case you missed it, we're having our annual Minecraft Live event this Saturday. Make sure to check that out!
We still highly recommend backing up your world before loading it in this snapshot.
Changes in 21w41a
The main menu backdrop now shows a Caves & Cliffs: Part II scene
Badlands mineshafts generate higher up
Geodes now only generate up to height 30 and their rarity has been adjusted to match 1.17 levels
The angle at which sprinting against a block does not break your sprint has been increased a bit
Technical Changes in 21w41a
Changed the prioritization order of the chunk rendering pipeline
Unrendered chunk holes in the world should not appear anymore while flying fast with high render distance
Server classes are now signed
New random number generator for Overworld generation
Fixed bugs in 21w41a
MC-118134 Item frame texture as an item uses texture of oak planks
MC-137950 Signs textures does not correspond to the actual texture of their handle
MC-142385 Campfire texture has one pixel extending into hotbar outline
MC-148182 The zombie villager "profession" texture uses villager-skin-colored pixels
MC-152506 Wither skull projectile has faces with old texture
MC-160256 Texture of door items does not match the blocks
MC-166508 Glitchy chunk rendering since 1.15 pre-release 2
MC-173339 Comparators lit base texture is incorrect
MC-203155 Enchanting table GUI uses old lapis texture
MC-225949 Parity Issue: different Bedrock and Java sign items textures.
MC-236650 Minecraft in 1.18 has 2^48 seeds instead of 2^64 seeds.
MC-237330 Worlds created with seed "REDApRES" (0) crash when trying to load new 1.18 mountain biomes / java.lang.NullPointerException: Cannot invoke "dfw.a(double, double, double)" because "this.a" is null
MC-237457 Snowy Slopes biome no longer generates stone cliff feature from experimental snapshots
MC-238003 Stone in jagged peaks is always covered by snow blocks
MC-238561 Axolotls aren't able to spawn at all in lush caves (recurrence of MC-218701)