diff --git a/mappings/net/minecraft/server/command/ExecuteCommand.mapping b/mappings/net/minecraft/server/command/ExecuteCommand.mapping
index fcf5f35924..9e82f326b4 100644
--- a/mappings/net/minecraft/server/command/ExecuteCommand.mapping
+++ b/mappings/net/minecraft/server/command/ExecuteCommand.mapping
@@ -214,6 +214,8 @@ CLASS net/minecraft/class_3050 net/minecraft/server/command/ExecuteCommand
 	METHOD method_22831 (Lcom/mojang/brigadier/context/CommandContext;Lcom/mojang/brigadier/suggestion/SuggestionsBuilder;)Ljava/util/concurrent/CompletableFuture;
 		ARG 0 context
 		ARG 1 builder
+	METHOD method_47527 (Lcom/mojang/brigadier/context/CommandContext;)Z
+		ARG 0 context
 	CLASS class_3051 ExistsCondition
 		METHOD test (Lcom/mojang/brigadier/context/CommandContext;)I
 			ARG 1 context
diff --git a/mappings/net/minecraft/server/command/FillBiomeCommand.mapping b/mappings/net/minecraft/server/command/FillBiomeCommand.mapping
new file mode 100644
index 0000000000..5e9253b5cf
--- /dev/null
+++ b/mappings/net/minecraft/server/command/FillBiomeCommand.mapping
@@ -0,0 +1,32 @@
+CLASS net/minecraft/class_7926 net/minecraft/server/command/FillBiomeCommand
+	FIELD field_41279 UNLOADED_EXCEPTION Lcom/mojang/brigadier/exceptions/SimpleCommandExceptionType;
+	FIELD field_41280 MAX_BLOCKS I
+	FIELD field_41281 TOO_BIG_EXCEPTION Lcom/mojang/brigadier/exceptions/Dynamic2CommandExceptionType;
+	METHOD method_47528 convertCoordinate (I)I
+		ARG 0 coordinate
+	METHOD method_47529 register (Lcom/mojang/brigadier/CommandDispatcher;Lnet/minecraft/class_7157;)V
+		ARG 0 dispatcher
+		ARG 1 commandRegistryAccess
+	METHOD method_47530 (Lcom/mojang/brigadier/context/CommandContext;)I
+		ARG 0 context
+	METHOD method_47531 createBiomeSupplier (Lnet/minecraft/class_2791;Lnet/minecraft/class_3341;Lnet/minecraft/class_6880;)Lnet/minecraft/class_6780;
+		ARG 0 chunk
+		ARG 1 box
+		ARG 2 biome
+	METHOD method_47532 (Lnet/minecraft/class_2168;)Z
+		ARG 0 source
+	METHOD method_47533 execute (Lnet/minecraft/class_2168;Lnet/minecraft/class_2338;Lnet/minecraft/class_2338;Lnet/minecraft/class_6880$class_6883;)I
+		ARG 0 source
+		ARG 1 from
+		ARG 2 to
+		ARG 3 biome
+	METHOD method_47534 (Lnet/minecraft/class_3341;Lnet/minecraft/class_6880;Lnet/minecraft/class_2791;IIILnet/minecraft/class_6544$class_6552;)Lnet/minecraft/class_6880;
+		ARG 3 x
+		ARG 4 y
+		ARG 5 z
+		ARG 6 noise
+	METHOD method_47535 convertPos (Lnet/minecraft/class_2338;)Lnet/minecraft/class_2338;
+		ARG 0 pos
+	METHOD method_47536 (Ljava/lang/Object;Ljava/lang/Object;)Lcom/mojang/brigadier/Message;
+		ARG 0 maximum
+		ARG 1 specified
diff --git a/mappings/net/minecraft/server/world/ThreadedAnvilChunkStorage.mapping b/mappings/net/minecraft/server/world/ThreadedAnvilChunkStorage.mapping
index 0b2d229879..1724bcd13d 100644
--- a/mappings/net/minecraft/server/world/ThreadedAnvilChunkStorage.mapping
+++ b/mappings/net/minecraft/server/world/ThreadedAnvilChunkStorage.mapping
@@ -308,6 +308,8 @@ CLASS net/minecraft/class_3898 net/minecraft/server/world/ThreadedAnvilChunkStor
 	METHOD method_43383 getUpdatedChunkNbt (Lnet/minecraft/class_1923;)Ljava/util/concurrent/CompletableFuture;
 		ARG 1 chunkPos
 	METHOD method_46641 getStructurePlacementCalculator ()Lnet/minecraft/class_7869;
+	METHOD method_47537 sendChunkPacketToWatchingPlayers (Lnet/minecraft/class_2791;)V
+		ARG 1 chunk
 	CLASS class_3208 EntityTracker
 		COMMENT An entity tracker governs which players' clients can see an entity. Each
 		COMMENT tracker corresponds to one entity in a server world and is mapped from the
diff --git a/mappings/net/minecraft/util/math/BlockBox.mapping b/mappings/net/minecraft/util/math/BlockBox.mapping
index b851b15f1d..bbd284daac 100644
--- a/mappings/net/minecraft/util/math/BlockBox.mapping
+++ b/mappings/net/minecraft/util/math/BlockBox.mapping
@@ -45,6 +45,7 @@ CLASS net/minecraft/class_3341 net/minecraft/util/math/BlockBox
 		ARG 3 dz
 	METHOD method_14662 contains (Lnet/minecraft/class_2382;)Z
 		COMMENT {@return whether this box contains {@code pos}}
+		ARG 1 pos
 	METHOD method_14663 getBlockCountZ ()I
 		COMMENT {@return the number of blocks on the Z axis}
 		COMMENT
@@ -124,3 +125,7 @@ CLASS net/minecraft/class_3341 net/minecraft/util/math/BlockBox
 	METHOD method_35418 getMaxX ()I
 	METHOD method_35419 getMaxY ()I
 	METHOD method_35420 getMaxZ ()I
+	METHOD method_47593 contains (III)Z
+		ARG 1 x
+		ARG 2 y
+		ARG 3 z