diff --git a/mappings/net/minecraft/client/item/ModelPredicateProvider.mapping b/mappings/net/minecraft/client/item/ModelPredicateProvider.mapping
index 03d87c7cec..3efbe2bd41 100644
--- a/mappings/net/minecraft/client/item/ModelPredicateProvider.mapping
+++ b/mappings/net/minecraft/client/item/ModelPredicateProvider.mapping
@@ -3,3 +3,4 @@ CLASS net/minecraft/class_1800 net/minecraft/client/item/ModelPredicateProvider
 		ARG 1 stack
 		ARG 2 world
 		ARG 3 entity
+		ARG 4 seed
diff --git a/mappings/net/minecraft/client/render/item/ItemRenderer.mapping b/mappings/net/minecraft/client/render/item/ItemRenderer.mapping
index 34e0d6b939..58c670f082 100644
--- a/mappings/net/minecraft/client/render/item/ItemRenderer.mapping
+++ b/mappings/net/minecraft/client/render/item/ItemRenderer.mapping
@@ -21,6 +21,7 @@ CLASS net/minecraft/class_918 net/minecraft/client/render/item/ItemRenderer
 		ARG 7 world
 		ARG 8 light
 		ARG 9 overlay
+		ARG 10 seed
 	METHOD method_23178 renderItem (Lnet/minecraft/class_1799;Lnet/minecraft/class_809$class_811;IILnet/minecraft/class_4587;Lnet/minecraft/class_4597;I)V
 		ARG 1 stack
 		ARG 2 transformationType
@@ -28,6 +29,7 @@ CLASS net/minecraft/class_918 net/minecraft/client/render/item/ItemRenderer
 		ARG 4 overlay
 		ARG 5 matrices
 		ARG 6 vertexConsumers
+		ARG 7 seed
 	METHOD method_23179 renderItem (Lnet/minecraft/class_1799;Lnet/minecraft/class_809$class_811;ZLnet/minecraft/class_4587;Lnet/minecraft/class_4597;IILnet/minecraft/class_1087;)V
 		ARG 1 stack
 		ARG 2 renderMode
@@ -110,6 +112,7 @@ CLASS net/minecraft/class_918 net/minecraft/client/render/item/ItemRenderer
 		ARG 1 stack
 		ARG 2 world
 		ARG 3 entity
+		ARG 4 seed
 	METHOD method_4021 renderGuiItemModel (Lnet/minecraft/class_1799;IILnet/minecraft/class_1087;)V
 		ARG 1 stack
 		ARG 2 x
diff --git a/mappings/net/minecraft/client/render/model/json/ModelOverride.mapping b/mappings/net/minecraft/client/render/model/json/ModelOverride.mapping
index 9a5073ddd0..f623cbb50e 100644
--- a/mappings/net/minecraft/client/render/model/json/ModelOverride.mapping
+++ b/mappings/net/minecraft/client/render/model/json/ModelOverride.mapping
@@ -1,13 +1,25 @@
 CLASS net/minecraft/class_799 net/minecraft/client/render/model/json/ModelOverride
 	FIELD field_4268 modelId Lnet/minecraft/class_2960;
-	FIELD field_4269 predicateToThresholds Ljava/util/List;
+	FIELD field_4269 conditions Ljava/util/List;
 	METHOD <init> (Lnet/minecraft/class_2960;Ljava/util/List;)V
 		ARG 1 modelId
+		ARG 2 conditions
+	METHOD method_33690 streamConditions ()Ljava/util/stream/Stream;
 	METHOD method_3472 getModelId ()Lnet/minecraft/class_2960;
 	CLASS class_800 Deserializer
 		METHOD deserialize (Lcom/google/gson/JsonElement;Ljava/lang/reflect/Type;Lcom/google/gson/JsonDeserializationContext;)Ljava/lang/Object;
 			ARG 1 functionJson
 			ARG 2 unused
 			ARG 3 context
+		METHOD method_33691 (Ljava/util/Map$Entry;)Lnet/minecraft/class_799$class_5826;
+			ARG 0 entry
 		METHOD method_3474 deserializeMinPropertyValues (Lcom/google/gson/JsonObject;)Ljava/util/List;
 			ARG 1 object
+	CLASS class_5826 Condition
+		FIELD field_28790 type Lnet/minecraft/class_2960;
+		FIELD field_28791 threshold F
+		METHOD <init> (Lnet/minecraft/class_2960;F)V
+			ARG 1 type
+			ARG 2 threshold
+		METHOD method_33692 getType ()Lnet/minecraft/class_2960;
+		METHOD method_33693 getThreshold ()F
diff --git a/mappings/net/minecraft/client/render/model/json/ModelOverrideList.mapping b/mappings/net/minecraft/client/render/model/json/ModelOverrideList.mapping
index ec62da255a..6806318e4f 100644
--- a/mappings/net/minecraft/client/render/model/json/ModelOverrideList.mapping
+++ b/mappings/net/minecraft/client/render/model/json/ModelOverrideList.mapping
@@ -1,11 +1,37 @@
 CLASS net/minecraft/class_806 net/minecraft/client/render/model/json/ModelOverrideList
+	FIELD field_28792 overrides [Lnet/minecraft/class_806$class_5827;
+	FIELD field_28793 conditionTypes [Lnet/minecraft/class_2960;
 	FIELD field_4292 EMPTY Lnet/minecraft/class_806;
 	METHOD <init> (Lnet/minecraft/class_1088;Lnet/minecraft/class_793;Ljava/util/function/Function;Ljava/util/List;)V
 		ARG 1 modelLoader
-		ARG 2 unbakedModel
+		ARG 2 parent
 		ARG 3 unbakedModelGetter
+		ARG 4 overrides
+	METHOD method_33695 bakeOverridingModel (Lnet/minecraft/class_1088;Lnet/minecraft/class_793;Ljava/util/function/Function;Lnet/minecraft/class_799;)Lnet/minecraft/class_1087;
+		ARG 1 loader
+		ARG 2 parent
+		ARG 3 unbakedModelGetter
+		ARG 4 override
+	METHOD method_33696 (Lit/unimi/dsi/fastutil/objects/Object2IntMap;Lnet/minecraft/class_799$class_5826;)Lnet/minecraft/class_806$class_5828;
+		ARG 0 map
+		ARG 1 condition
 	METHOD method_3495 apply (Lnet/minecraft/class_1087;Lnet/minecraft/class_1799;Lnet/minecraft/class_638;Lnet/minecraft/class_1309;I)Lnet/minecraft/class_1087;
 		ARG 1 model
 		ARG 2 stack
 		ARG 3 world
 		ARG 4 entity
+		ARG 5 seed
+	CLASS class_5827 BakedOverride
+		FIELD field_28794 conditions [Lnet/minecraft/class_806$class_5828;
+		FIELD field_28795 model Lnet/minecraft/class_1087;
+		METHOD <init> ([Lnet/minecraft/class_806$class_5828;Lnet/minecraft/class_1087;)V
+			ARG 1 conditions
+			ARG 2 model
+		METHOD method_33700 test ([F)Z
+			ARG 1 values
+	CLASS class_5828 InlinedCondition
+		FIELD field_28796 index I
+		FIELD field_28797 threshold F
+		METHOD <init> (IF)V
+			ARG 1 index
+			ARG 2 threshold