diff --git a/gradle.properties b/gradle.properties
index f4fcd4d1..cbead656 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -4,9 +4,9 @@ org.gradle.jvmargs=-Xmx1G
 # Fabric Properties
 	# check these on https://fabricmc.net/use
     # or better: https://modmuss50.me/fabric.html
-	minecraft_version=20w20a
-	yarn_mappings=20w20a+build.1
-	loader_version=0.8.2+build.194
+	minecraft_version=20w20b
+	yarn_mappings=20w20b+build.1
+	loader_version=0.8.3+build.196
 
 # Mod Properties
 	mod_version = 1.3.23+v200513
diff --git a/src/main/java/carpet/helpers/BlockSaplingHelper.java b/src/main/java/carpet/helpers/BlockSaplingHelper.java
index abe45c3f..90a303fd 100644
--- a/src/main/java/carpet/helpers/BlockSaplingHelper.java
+++ b/src/main/java/carpet/helpers/BlockSaplingHelper.java
@@ -2,12 +2,12 @@ package carpet.helpers;
 
 import net.minecraft.block.Material;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.IWorld;
+import net.minecraft.world.WorldAccess;
 
 public class BlockSaplingHelper
 {
     // Added code for checking water for dead shrub rule
-    public static boolean hasWater(IWorld worldIn, BlockPos pos)
+    public static boolean hasWater(WorldAccess worldIn, BlockPos pos)
     {
         for (BlockPos blockpos$mutableblockpos : BlockPos.iterate(pos.add(-4, -4, -4), pos.add(4, 1, 4)))
         {
diff --git a/src/main/java/carpet/mixins/CoralFeatureMixin.java b/src/main/java/carpet/mixins/CoralFeatureMixin.java
index 115aff1d..2271bffd 100644
--- a/src/main/java/carpet/mixins/CoralFeatureMixin.java
+++ b/src/main/java/carpet/mixins/CoralFeatureMixin.java
@@ -3,7 +3,7 @@ package carpet.mixins;
 import carpet.fakes.CoralFeatureInterface;
 import net.minecraft.block.BlockState;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.IWorld;
+import net.minecraft.world.WorldAccess;
 import net.minecraft.world.World;
 import net.minecraft.world.gen.feature.CoralFeature;
 import org.spongepowered.asm.mixin.Mixin;
@@ -15,7 +15,7 @@ import java.util.Random;
 public abstract class CoralFeatureMixin implements CoralFeatureInterface
 {
 
-    @Shadow protected abstract boolean spawnCoral(IWorld var1, Random var2, BlockPos var3, BlockState var4);
+    @Shadow protected abstract boolean spawnCoral(WorldAccess var1, Random var2, BlockPos var3, BlockState var4);
 
     @Override
     public boolean growSpecific(World worldIn, Random random, BlockPos pos, BlockState blockUnder)
diff --git a/src/main/java/carpet/mixins/FlatChunkGeneratorMixin.java b/src/main/java/carpet/mixins/FlatChunkGeneratorMixin.java
index e7a98c6b..9e1f7924 100644
--- a/src/main/java/carpet/mixins/FlatChunkGeneratorMixin.java
+++ b/src/main/java/carpet/mixins/FlatChunkGeneratorMixin.java
@@ -4,7 +4,7 @@ import carpet.CarpetSettings;
 import net.minecraft.block.Blocks;
 import net.minecraft.entity.SpawnGroup;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.IWorld;
+import net.minecraft.world.WorldAccess;
 import net.minecraft.world.biome.Biome;
 import net.minecraft.world.biome.source.BiomeSource;
 import net.minecraft.world.gen.StructureAccessor;
diff --git a/src/main/java/carpet/mixins/HuskEntityMixin.java b/src/main/java/carpet/mixins/HuskEntityMixin.java
index 9c173b5c..b57210af 100644
--- a/src/main/java/carpet/mixins/HuskEntityMixin.java
+++ b/src/main/java/carpet/mixins/HuskEntityMixin.java
@@ -4,7 +4,7 @@ import carpet.CarpetSettings;
 import net.minecraft.entity.mob.HuskEntity;
 import net.minecraft.server.world.ServerWorld;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.IWorld;
+import net.minecraft.world.WorldAccess;
 import net.minecraft.world.gen.feature.Feature;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
@@ -13,10 +13,10 @@ import org.spongepowered.asm.mixin.injection.Redirect;
 @Mixin(HuskEntity.class)
 public class HuskEntityMixin
 {
-    @Redirect(method = "canSpawn", at = @At(value = "INVOKE", target="Lnet/minecraft/world/IWorld;isSkyVisible(Lnet/minecraft/util/math/BlockPos;)Z"))
-    private static boolean isSkylightOrTempleVisible(IWorld iWorld, BlockPos blockPos_1)
+    @Redirect(method = "canSpawn", at = @At(value = "INVOKE", target="Lnet/minecraft/world/WorldAccess;isSkyVisible(Lnet/minecraft/util/math/BlockPos;)Z"))
+    private static boolean isSkylightOrTempleVisible(WorldAccess WorldAccess, BlockPos blockPos_1)
     {
-        return iWorld.isSkyVisible(blockPos_1) ||
-                (CarpetSettings.huskSpawningInTemples && Feature.DESERT_PYRAMID.isApproximatelyInsideStructure(((ServerWorld)iWorld).getStructureAccessor(),  blockPos_1));
+        return WorldAccess.isSkyVisible(blockPos_1) ||
+                (CarpetSettings.huskSpawningInTemples && Feature.DESERT_PYRAMID.isApproximatelyInsideStructure(((ServerWorld)WorldAccess).getStructureAccessor(),  blockPos_1));
     }
 }
diff --git a/src/main/java/carpet/mixins/OverworldChunkGeneratorMixin.java b/src/main/java/carpet/mixins/OverworldChunkGeneratorMixin.java
index 6f71c698..ff7d3811 100644
--- a/src/main/java/carpet/mixins/OverworldChunkGeneratorMixin.java
+++ b/src/main/java/carpet/mixins/OverworldChunkGeneratorMixin.java
@@ -3,7 +3,7 @@ package carpet.mixins;
 import carpet.CarpetSettings;
 import net.minecraft.entity.SpawnGroup;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.IWorld;
+import net.minecraft.world.WorldAccess;
 import net.minecraft.world.biome.Biome;
 import net.minecraft.world.biome.source.BiomeSource;
 import net.minecraft.world.gen.StructureAccessor;
diff --git a/src/main/java/carpet/mixins/ServerPlayerInteractionManager_scarpetEventsMixin.java b/src/main/java/carpet/mixins/ServerPlayerInteractionManager_scarpetEventsMixin.java
index a88d8ab3..90b99892 100644
--- a/src/main/java/carpet/mixins/ServerPlayerInteractionManager_scarpetEventsMixin.java
+++ b/src/main/java/carpet/mixins/ServerPlayerInteractionManager_scarpetEventsMixin.java
@@ -30,7 +30,7 @@ public class ServerPlayerInteractionManager_scarpetEventsMixin
 
     @Inject(method = "tryBreakBlock", locals = LocalCapture.CAPTURE_FAILEXCEPTION, at = @At(
             value = "INVOKE",
-            target = "Lnet/minecraft/block/Block;onBroken(Lnet/minecraft/world/IWorld;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;)V",
+            target = "Lnet/minecraft/block/Block;onBroken(Lnet/minecraft/world/WorldAccess;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;)V",
             shift = At.Shift.BEFORE
     ))
     private void onBlockBroken(BlockPos blockPos_1, CallbackInfoReturnable<Boolean> cir, BlockState blockState_1, BlockEntity be, Block b, boolean boolean_1)
diff --git a/src/main/java/carpet/mixins/SpawnHelperMixin.java b/src/main/java/carpet/mixins/SpawnHelperMixin.java
index e0bfcb42..be1179d1 100644
--- a/src/main/java/carpet/mixins/SpawnHelperMixin.java
+++ b/src/main/java/carpet/mixins/SpawnHelperMixin.java
@@ -21,7 +21,7 @@ import net.minecraft.util.math.Box;
 import net.minecraft.util.math.MathHelper;
 import net.minecraft.util.shape.VoxelShape;
 import net.minecraft.util.shape.VoxelShapes;
-import net.minecraft.world.IWorld;
+import net.minecraft.world.WorldAccess;
 import net.minecraft.world.LocalDifficulty;
 import net.minecraft.world.SpawnHelper;
 import net.minecraft.world.World;
@@ -174,12 +174,12 @@ public class SpawnHelperMixin
 
     @Redirect(method = "spawnEntitiesInChunk(Lnet/minecraft/entity/SpawnGroup;Lnet/minecraft/server/world/ServerWorld;Lnet/minecraft/world/chunk/Chunk;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/world/SpawnHelper$Checker;Lnet/minecraft/world/SpawnHelper$Runner;)V", at = @At(
             value = "INVOKE",
-            target = "Lnet/minecraft/entity/mob/MobEntity;initialize(Lnet/minecraft/world/IWorld;Lnet/minecraft/world/LocalDifficulty;Lnet/minecraft/entity/SpawnReason;Lnet/minecraft/entity/EntityData;Lnet/minecraft/nbt/CompoundTag;)Lnet/minecraft/entity/EntityData;"
+            target = "Lnet/minecraft/entity/mob/MobEntity;initialize(Lnet/minecraft/world/WorldAccess;Lnet/minecraft/world/LocalDifficulty;Lnet/minecraft/entity/SpawnReason;Lnet/minecraft/entity/EntityData;Lnet/minecraft/nbt/CompoundTag;)Lnet/minecraft/entity/EntityData;"
     ))
-    private static EntityData spawnEntity(MobEntity mobEntity, IWorld iWorld_1, LocalDifficulty localDifficulty_1, SpawnReason spawnType_1, EntityData entityData_1, CompoundTag compoundTag_1)
+    private static EntityData spawnEntity(MobEntity mobEntity, WorldAccess WorldAccess_1, LocalDifficulty localDifficulty_1, SpawnReason spawnType_1, EntityData entityData_1, CompoundTag compoundTag_1)
     {
         if (!SpawnReporter.mock_spawns)
-            return mobEntity.initialize(iWorld_1, localDifficulty_1, spawnType_1, entityData_1, compoundTag_1);
+            return mobEntity.initialize(WorldAccess_1, localDifficulty_1, spawnType_1, entityData_1, compoundTag_1);
         return null;
     }
 
diff --git a/src/main/java/carpet/mixins/StructureBlockBlockEntity_fillUpdatesMixin.java b/src/main/java/carpet/mixins/StructureBlockBlockEntity_fillUpdatesMixin.java
index 95997c91..50e9fcd8 100644
--- a/src/main/java/carpet/mixins/StructureBlockBlockEntity_fillUpdatesMixin.java
+++ b/src/main/java/carpet/mixins/StructureBlockBlockEntity_fillUpdatesMixin.java
@@ -5,7 +5,7 @@ import net.minecraft.block.entity.StructureBlockBlockEntity;
 import net.minecraft.structure.Structure;
 import net.minecraft.structure.StructurePlacementData;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.IWorld;
+import net.minecraft.world.WorldAccess;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Redirect;
@@ -15,15 +15,15 @@ public abstract class StructureBlockBlockEntity_fillUpdatesMixin
 {
     @Redirect(method = "place", at = @At(
             value = "INVOKE",
-            target = "Lnet/minecraft/structure/Structure;place(Lnet/minecraft/world/IWorld;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/structure/StructurePlacementData;)V"
+            target = "Lnet/minecraft/structure/Structure;place(Lnet/minecraft/world/WorldAccess;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/structure/StructurePlacementData;)V"
     ))
-    private void onStructurePlacen(Structure structure, IWorld iWorld_1, BlockPos blockPos_1, StructurePlacementData structurePlacementData_1)
+    private void onStructurePlacen(Structure structure, WorldAccess WorldAccess_1, BlockPos blockPos_1, StructurePlacementData structurePlacementData_1)
     {
         if(!CarpetSettings.fillUpdates)
             CarpetSettings.impendingFillSkipUpdates = true;
         try
         {
-            structure.place(iWorld_1, blockPos_1, structurePlacementData_1);
+            structure.place(WorldAccess_1, blockPos_1, structurePlacementData_1);
         }
         finally
         {
diff --git a/src/main/java/carpet/mixins/StructureFeatureMixin.java b/src/main/java/carpet/mixins/StructureFeatureMixin.java
index c004a683..acca1c31 100644
--- a/src/main/java/carpet/mixins/StructureFeatureMixin.java
+++ b/src/main/java/carpet/mixins/StructureFeatureMixin.java
@@ -7,7 +7,7 @@ import net.minecraft.structure.StructureStart;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.ChunkPos;
 import net.minecraft.util.math.BlockBox;
-import net.minecraft.world.IWorld;
+import net.minecraft.world.WorldAccess;
 import net.minecraft.world.biome.Biome;
 import net.minecraft.world.biome.Biomes;
 import net.minecraft.world.chunk.Chunk;
diff --git a/src/main/java/carpet/mixins/Structure_fillUpdatesMixin.java b/src/main/java/carpet/mixins/Structure_fillUpdatesMixin.java
index f340479c..0d282dbc 100644
--- a/src/main/java/carpet/mixins/Structure_fillUpdatesMixin.java
+++ b/src/main/java/carpet/mixins/Structure_fillUpdatesMixin.java
@@ -5,7 +5,7 @@ import net.minecraft.block.Block;
 import net.minecraft.structure.Structure;
 import net.minecraft.structure.StructurePlacementData;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.IWorld;
+import net.minecraft.world.WorldAccess;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Redirect;
@@ -13,17 +13,17 @@ import org.spongepowered.asm.mixin.injection.Redirect;
 @Mixin(Structure.class)
 public class Structure_fillUpdatesMixin
 {
-    @Redirect( method = "place(Lnet/minecraft/world/IWorld;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/structure/StructurePlacementData;I)Z", at = @At(
+    @Redirect( method = "place(Lnet/minecraft/world/WorldAccess;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/structure/StructurePlacementData;I)Z", at = @At(
             value = "INVOKE",
-            target = "Lnet/minecraft/world/IWorld;updateNeighbors(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/Block;)V"
+            target = "Lnet/minecraft/world/WorldAccess;updateNeighbors(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/Block;)V"
     ))
-    private void skipUpdateNeighbours(IWorld iWorld, BlockPos var1, Block var2)
+    private void skipUpdateNeighbours(WorldAccess WorldAccess, BlockPos var1, Block var2)
     {
         if (!CarpetSettings.impendingFillSkipUpdates)
-            iWorld.updateNeighbors(var1, var2);
+            WorldAccess.updateNeighbors(var1, var2);
     }
 
-    @Redirect(method = "place(Lnet/minecraft/world/IWorld;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/structure/StructurePlacementData;I)Z", at = @At(
+    @Redirect(method = "place(Lnet/minecraft/world/WorldAccess;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/structure/StructurePlacementData;I)Z", at = @At(
             value = "INVOKE",
             target = "Lnet/minecraft/structure/StructurePlacementData;shouldUpdateNeighbors()Z"
     ))
diff --git a/src/main/java/carpet/mixins/World_movableTEMixin.java b/src/main/java/carpet/mixins/World_movableTEMixin.java
index 33464758..5dd8a9a1 100644
--- a/src/main/java/carpet/mixins/World_movableTEMixin.java
+++ b/src/main/java/carpet/mixins/World_movableTEMixin.java
@@ -11,7 +11,7 @@ import net.minecraft.server.world.ChunkHolder;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.profiler.Profiler;
 import net.minecraft.world.BlockView;
-import net.minecraft.world.IWorld;
+import net.minecraft.world.WorldAccess;
 import net.minecraft.world.World;
 import net.minecraft.world.chunk.EmptyChunk;
 import net.minecraft.world.chunk.WorldChunk;
@@ -20,7 +20,7 @@ import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;
 
 @Mixin(World.class)
-public abstract class World_movableTEMixin implements WorldInterface, IWorld
+public abstract class World_movableTEMixin implements WorldInterface, WorldAccess
 {
     @Shadow
     @Final
@@ -125,9 +125,9 @@ public abstract class World_movableTEMixin implements WorldInterface, IWorld
                     if ((int_1 & 16) == 0)
                     {
                         int int_2 = int_1 & -2;
-                        blockState_2.prepare((net.minecraft.world.IWorld) this, blockPos_1, int_2);
-                        blockState_1.updateNeighbors((net.minecraft.world.IWorld) this, blockPos_1, int_2);
-                        blockState_1.prepare((net.minecraft.world.IWorld) this, blockPos_1, int_2);
+                        blockState_2.prepare((net.minecraft.world.WorldAccess) this, blockPos_1, int_2);
+                        blockState_1.updateNeighbors((net.minecraft.world.WorldAccess) this, blockPos_1, int_2);
+                        blockState_1.prepare((net.minecraft.world.WorldAccess) this, blockPos_1, int_2);
                     }
                     this.onBlockChanged(blockPos_1, blockState_2, blockState_3);
                 }