diff --git a/mappings/net/minecraft/world/level/storage/LevelSummary.mapping b/mappings/net/minecraft/world/level/storage/LevelSummary.mapping
index be821a31f9..59f180e523 100644
--- a/mappings/net/minecraft/world/level/storage/LevelSummary.mapping
+++ b/mappings/net/minecraft/world/level/storage/LevelSummary.mapping
@@ -3,7 +3,9 @@ CLASS net/minecraft/class_34 net/minecraft/world/level/storage/LevelSummary
 	FIELD field_209 requiresConversion Z
 	FIELD field_23772 locked Z
 	FIELD field_23773 file Ljava/io/File;
+	FIELD field_24191 details Lnet/minecraft/class_2561;
 	FIELD field_25022 levelInfo Lnet/minecraft/class_1940;
+	FIELD field_25023 versionInfo Lnet/minecraft/class_5315;
 	METHOD method_247 getGameMode ()Lnet/minecraft/class_1934;
 	METHOD method_248 getName ()Ljava/lang/String;
 	METHOD method_249 getLastPlayed ()J
@@ -17,3 +19,5 @@ CLASS net/minecraft/class_34 net/minecraft/world/level/storage/LevelSummary
 	METHOD method_260 isFutureLevel ()Z
 	METHOD method_27020 getFile ()Ljava/io/File;
 	METHOD method_27021 isLocked ()Z
+	METHOD method_27429 getDetails ()Lnet/minecraft/class_2561;
+	METHOD method_27430 createDetails ()Lnet/minecraft/class_2561;