diff --git a/mappings/net/minecraft/entity/ai/brain/task/FindEntityTask.mapping b/mappings/net/minecraft/entity/ai/brain/task/FindEntityTask.mapping
index 2401f3f046..396349dcde 100644
--- a/mappings/net/minecraft/entity/ai/brain/task/FindEntityTask.mapping
+++ b/mappings/net/minecraft/entity/ai/brain/task/FindEntityTask.mapping
@@ -20,6 +20,10 @@ CLASS net/minecraft/class_4106 net/minecraft/entity/ai/brain/task/FindEntityTask
 		ARG 2 targetModule
 		ARG 3 speed
 		ARG 4 completionRange
+	METHOD method_18948 (Lnet/minecraft/class_1309;)Z
+		ARG 0 entity
+	METHOD method_18949 (Lnet/minecraft/class_1309;)Z
+		ARG 0 entity
 	METHOD method_24582 anyVisibleTo (Lnet/minecraft/class_1309;)Z
 		ARG 1 entity
 	METHOD method_24583 testPredicate (Lnet/minecraft/class_1309;)Z
@@ -31,3 +35,12 @@ CLASS net/minecraft/class_4106 net/minecraft/entity/ai/brain/task/FindEntityTask
 		ARG 3 moduleType
 		ARG 4 speed
 		ARG 5 completionRange
+	METHOD method_35072 (Lnet/minecraft/class_1309;)Z
+		ARG 0 entity
+	METHOD method_38963 shouldTarget (Lnet/minecraft/class_1309;Lnet/minecraft/class_1309;)Z
+		ARG 1 self
+		ARG 2 target
+	METHOD method_38964 (Lnet/minecraft/class_4095;Lnet/minecraft/class_1309;)V
+		ARG 2 target
+	METHOD method_38965 (Lnet/minecraft/class_1309;Lnet/minecraft/class_1309;)Z
+		ARG 2 target
diff --git a/mappings/net/minecraft/item/FilledMapItem.mapping b/mappings/net/minecraft/item/FilledMapItem.mapping
index 4f4ff5b839..50d25da133 100644
--- a/mappings/net/minecraft/item/FilledMapItem.mapping
+++ b/mappings/net/minecraft/item/FilledMapItem.mapping
@@ -17,6 +17,11 @@ CLASS net/minecraft/class_1806 net/minecraft/item/FilledMapItem
 		ARG 4 showIcons
 		ARG 5 unlimitedTracking
 		ARG 6 dimension
+	METHOD method_38988 isAquaticBiome ([ZIII)Z
+		ARG 0 biomes
+		ARG 1 scale
+		ARG 2 x
+		ARG 3 z
 	METHOD method_7995 getFluidStateIfVisible (Lnet/minecraft/class_1937;Lnet/minecraft/class_2680;Lnet/minecraft/class_2338;)Lnet/minecraft/class_2680;
 		ARG 1 world
 		ARG 2 state
diff --git a/mappings/net/minecraft/network/packet/s2c/play/BlockEntityUpdateS2CPacket.mapping b/mappings/net/minecraft/network/packet/s2c/play/BlockEntityUpdateS2CPacket.mapping
index ac121645c9..8aab0f9759 100644
--- a/mappings/net/minecraft/network/packet/s2c/play/BlockEntityUpdateS2CPacket.mapping
+++ b/mappings/net/minecraft/network/packet/s2c/play/BlockEntityUpdateS2CPacket.mapping
@@ -13,3 +13,6 @@ CLASS net/minecraft/class_2622 net/minecraft/network/packet/s2c/play/BlockEntity
 	METHOD method_11293 getPos ()Lnet/minecraft/class_2338;
 	METHOD method_38585 create (Lnet/minecraft/class_2586;)Lnet/minecraft/class_2622;
 		ARG 0 blockEntity
+	METHOD method_39026 create (Lnet/minecraft/class_2586;Ljava/util/function/Function;)Lnet/minecraft/class_2622;
+		ARG 0 blockEntity
+		ARG 1 nbtGetter
diff --git a/mappings/net/minecraft/util/math/MathHelper.mapping b/mappings/net/minecraft/util/math/MathHelper.mapping
index 11e6c6af52..0d2239e509 100644
--- a/mappings/net/minecraft/util/math/MathHelper.mapping
+++ b/mappings/net/minecraft/util/math/MathHelper.mapping
@@ -385,3 +385,7 @@ CLASS net/minecraft/class_3532 net/minecraft/util/math/MathHelper
 	METHOD method_38788 ceilDiv (II)I
 		ARG 0 a
 		ARG 1 b
+	METHOD method_38961 roundDownToMultiple (DI)I
+		COMMENT {@return {@code a} rounded down to the nearest multiple of {@code b}}
+		ARG 0 a
+		ARG 1 b
diff --git a/mappings/net/minecraft/world/World.mapping b/mappings/net/minecraft/world/World.mapping
index c206026e77..16e24f81e0 100644
--- a/mappings/net/minecraft/world/World.mapping
+++ b/mappings/net/minecraft/world/World.mapping
@@ -100,6 +100,8 @@ CLASS net/minecraft/class_1937 net/minecraft/world/World
 		ARG 2 gameEvent
 		ARG 3 pos
 		ARG 4 range
+	METHOD method_38989 shouldUpdatePostDeath (Lnet/minecraft/class_1297;)Z
+		ARG 1 entity
 	METHOD method_8413 updateListeners (Lnet/minecraft/class_2338;Lnet/minecraft/class_2680;Lnet/minecraft/class_2680;I)V
 		ARG 1 pos
 		ARG 2 oldState