diff --git a/gradle.properties b/gradle.properties
index f179df4..53d9848 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
-version=3.7.0
-minecraft=1.6.1,1.6.2,1.6.4,1.7.2,1.7.10,1.8,1.8.8,1.8.9,1.9,1.9.4,1.10,1.10.2,1.11,1.11.2,1.12,1.12.1,1.12.2,1.13.2,1.14,1.14.1,1.14.2,1.14.3,1.14.4,1.15,1.15.1,1.15.2,1.16,1.16.1,1.16.2,1.16.3,1.16.4,1.16.5,1.17,1.17.1,1.18,1.18.1,1.18.2,1.19,1.19.1,1.19.2,1.19.3,1.19.4,1.20,1.20.1,1.20.2,1.20.3,1.20.4,1.20.5,1.20.6,1.21,1.21.1,1.21.2,1.21.3,1.21.4,1.21.5,1.21.6,1.21.7,1.21.8,1.21.9,1.21.10
+version=3.7.1
+minecraft=1.6.1,1.6.2,1.6.4,1.7.2,1.7.10,1.8,1.8.8,1.8.9,1.9,1.9.4,1.10,1.10.2,1.11,1.11.2,1.12,1.12.1,1.12.2,1.13.2,1.14,1.14.1,1.14.2,1.14.3,1.14.4,1.15,1.15.1,1.15.2,1.16,1.16.1,1.16.2,1.16.3,1.16.4,1.16.5,1.17,1.17.1,1.18,1.18.1,1.18.2,1.19,1.19.1,1.19.2,1.19.3,1.19.4,1.20,1.20.1,1.20.2,1.20.3,1.20.4,1.20.5,1.20.6,1.21,1.21.1,1.21.2,1.21.3,1.21.4,1.21.5,1.21.6,1.21.7,1.21.8,1.21.9,1.21.10,1.21.11
 curseforge=NeoForge,Forge,Fabric,Quilt,Client,Java 8,Java 9,Java 10,Java 11,Java 12,Java 13,Java 14,Java 15,Java 16,Java 17,Java 18
\ No newline at end of file
diff --git a/src/main/java/i18nupdatemod/I18nUpdateMod.java b/src/main/java/i18nupdatemod/I18nUpdateMod.java
index 1afd352..d52040d 100644
--- a/src/main/java/i18nupdatemod/I18nUpdateMod.java
+++ b/src/main/java/i18nupdatemod/I18nUpdateMod.java
@@ -7,6 +7,7 @@
 import i18nupdatemod.core.ResourcePack;
 import i18nupdatemod.core.ResourcePackConverter;
 import i18nupdatemod.entity.GameAssetDetail;
+import i18nupdatemod.entity.GameMetaData;
 import i18nupdatemod.util.FileUtil;
 import i18nupdatemod.util.Log;
 
@@ -74,8 +75,9 @@ public static void init(Path minecraftPath, String minecraftVersion, String load
             if (!convertNotNeed) {
                 FileUtil.setTemporaryDirPath(Paths.get(localStorage, "." + MOD_ID, minecraftVersion));
                 applyFileName = assets.covertFileName;
+                GameMetaData metaData = I18nConfig.getPackFormat(minecraftVersion);
                 ResourcePackConverter converter = new ResourcePackConverter(languagePacks, applyFileName);
-                converter.convert(assets.covertPackFormat, getResourcePackDescription(assets.downloads));
+                converter.convert(metaData, getResourcePackDescription(assets.downloads));
             }
 
             //Apply resource pack
diff --git a/src/main/java/i18nupdatemod/core/I18nConfig.java b/src/main/java/i18nupdatemod/core/I18nConfig.java
index b0169c7..56203d1 100644
--- a/src/main/java/i18nupdatemod/core/I18nConfig.java
+++ b/src/main/java/i18nupdatemod/core/I18nConfig.java
@@ -71,12 +71,15 @@ public static GameAssetDetail getAssetDetail(String minecraftVersion, String loa
             ret.downloads = createDownloadDetails(convert, loader, assetRoot);
         }
 
-        ret.covertPackFormat = convert.packFormat;
         ret.covertFileName =
                 String.format("Minecraft-Mod-Language-Modpack-Converted-%s.zip", minecraftVersion);
         return ret;
     }
 
+    public static GameMetaData getPackFormat(String minecraftVersion) {
+        return getGameMetaData(minecraftVersion);
+    }
+
     private static List<GameAssetDetail.AssetDownloadDetail> createDownloadDetails(GameMetaData convert, String loader, String assetRoot) {
         return convert.convertFrom.stream().map(it -> getAssetMetaData(it, loader)).map(it -> {
             GameAssetDetail.AssetDownloadDetail adi = new GameAssetDetail.AssetDownloadDetail();
diff --git a/src/main/java/i18nupdatemod/core/ResourcePackConverter.java b/src/main/java/i18nupdatemod/core/ResourcePackConverter.java
index 0a97712..2d9b98d 100644
--- a/src/main/java/i18nupdatemod/core/ResourcePackConverter.java
+++ b/src/main/java/i18nupdatemod/core/ResourcePackConverter.java
@@ -2,6 +2,7 @@
 
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
+import i18nupdatemod.entity.GameMetaData;
 import i18nupdatemod.util.FileUtil;
 import i18nupdatemod.util.Log;
 import org.apache.commons.io.IOUtils;
@@ -32,7 +33,7 @@ public ResourcePackConverter(List<ResourcePack> resourcePack, String filename) {
         this.tmpFilePath = FileUtil.getTemporaryPath(filename);
     }
 
-    public void convert(int packFormat, String description) throws Exception {
+    public void convert(GameMetaData metaData, String description) throws Exception {
         Set<String> fileList = new HashSet<>();
         try (ZipOutputStream zos = new ZipOutputStream(
                 Files.newOutputStream(tmpFilePath),
@@ -57,7 +58,7 @@ public void convert(int packFormat, String description) throws Exception {
                         InputStream is = zf.getInputStream(ze);
                         if (name.equalsIgnoreCase("pack.mcmeta")) {
                             //Convert pack.mcmeta
-                            zos.write(convertPackMeta(is, packFormat, description));
+                            zos.write(convertPackMeta(is, metaData, description));
                         } else {
                             //Copy other file
                             IOUtils.copy(is, zos);
@@ -74,9 +75,11 @@ public void convert(int packFormat, String description) throws Exception {
         }
     }
 
-    private byte[] convertPackMeta(InputStream is, int packFormat, String description) {
+    private byte[] convertPackMeta(InputStream is, GameMetaData metaData, String description) {
         PackMeta meta = GSON.fromJson(new InputStreamReader(is, StandardCharsets.UTF_8), PackMeta.class);
-        meta.pack.pack_format = packFormat;
+        meta.pack.pack_format = metaData.useNewFormat() ? null : metaData.packFormat;
+        meta.pack.min_format = metaData.useNewFormat() ? metaData.minFormat : null;
+        meta.pack.max_format = metaData.useNewFormat() ? metaData.maxFormat : null;
         meta.pack.description = description;
         return GSON.toJson(meta).getBytes(StandardCharsets.UTF_8);
     }
@@ -85,7 +88,9 @@ private static class PackMeta {
         Pack pack;
 
         private static class Pack {
-            int pack_format;
+            Integer pack_format;  // 改为 Integer，支持 null
+            Integer min_format;
+            Integer max_format;
             String description;
         }
     }
diff --git a/src/main/java/i18nupdatemod/entity/GameAssetDetail.java b/src/main/java/i18nupdatemod/entity/GameAssetDetail.java
index 078b65e..89bf31a 100644
--- a/src/main/java/i18nupdatemod/entity/GameAssetDetail.java
+++ b/src/main/java/i18nupdatemod/entity/GameAssetDetail.java
@@ -4,7 +4,6 @@
 
 public class GameAssetDetail {
     public List<AssetDownloadDetail> downloads;
-    public Integer covertPackFormat;
     public String covertFileName;
 
     public static class AssetDownloadDetail {
diff --git a/src/main/java/i18nupdatemod/entity/GameMetaData.java b/src/main/java/i18nupdatemod/entity/GameMetaData.java
index daca0ce..b9f11e7 100644
--- a/src/main/java/i18nupdatemod/entity/GameMetaData.java
+++ b/src/main/java/i18nupdatemod/entity/GameMetaData.java
@@ -4,6 +4,8 @@
 
 public class GameMetaData {
     public String gameVersions;
-    public int packFormat;
+    public Integer packFormat, minFormat, maxFormat;
     public List<String> convertFrom;
+
+    public boolean useNewFormat() { return minFormat != null && maxFormat != null; }
 }
diff --git a/src/main/resources/i18nMetaData.json b/src/main/resources/i18nMetaData.json
index beafd68..3c174bd 100644
--- a/src/main/resources/i18nMetaData.json
+++ b/src/main/resources/i18nMetaData.json
@@ -175,9 +175,10 @@
       ]
     },
     {
-      "gameVersions": "[1.21.9,1.21.10]",
-      "packFormat": 69,
-      "convertFrom": [
+      "gameVersions": "[1.21.9,1.21.11]",
+      "minFormat": 69,
+      "maxFormat": 75,
+      "convertFrom":[
         "1.21",
         "1.20",
         "1.19"