diff --git a/src/app/service/content/gm_api/gm_info.ts b/src/app/service/content/gm_api/gm_info.ts
index 3f7848efd..44ca42d25 100644
--- a/src/app/service/content/gm_api/gm_info.ts
+++ b/src/app/service/content/gm_api/gm_info.ts
@@ -34,7 +34,7 @@ export function evaluateGMInfo(envInfo: GMInfoEnv, script: TScriptInfo) {
       // TODO: 更多完整的信息(为了兼容Tampermonkey,后续待定)
       name: script.name,
       namespace: script.namespace,
-      version: script.metadata.version?.[0],
+      version: script.metadata.version?.[0] || "0.0",
       author: script.author,
       lastModified: script.updatetime,
       downloadURL: script.downloadUrl || null,
diff --git a/src/app/service/service_worker/script.ts b/src/app/service/service_worker/script.ts
index 59873e093..79e949dfa 100644
--- a/src/app/service/service_worker/script.ts
+++ b/src/app/service/service_worker/script.ts
@@ -385,7 +385,7 @@ export class ScriptService {
     const logger = this.logger.with({
       name: script.name,
       uuid: script.uuid,
-      version: script.metadata.version![0],
+      version: script.metadata.version?.[0] || "0.0",
       upsertBy,
     });
     let update = false;
@@ -797,15 +797,8 @@ export class ScriptService {
         logger.error("parse metadata failed");
         return false;
       }
-      const newVersion = metadata.version && metadata.version[0];
-      if (!newVersion) {
-        logger.error("parse version failed", { version: metadata.version });
-        return false;
-      }
-      let oldVersion = script.metadata.version && script.metadata.version[0];
-      if (!oldVersion) {
-        oldVersion = "0.0.0";
-      }
+      const newVersion = metadata.version?.[0] || "0.0";
+      const oldVersion = script.metadata.version?.[0] || "0.0";
       // 对比版本大小
       if (ltever(newVersion, oldVersion)) {
         return false;
@@ -896,7 +889,8 @@ export class ScriptService {
   }
 
   shouldIgnoreUpdate(script: Script, newMeta: Partial<Record<string, string[]>> | null) {
-    return script.ignoreVersion === newMeta?.version?.[0];
+    const newVersion = newMeta?.version?.[0];
+    return typeof newVersion === "string" && script.ignoreVersion === newMeta?.version?.[0];
   }
 
   // 用于定时自动检查脚本更新
@@ -1187,11 +1181,15 @@ export class ScriptService {
   }
 
   isInstalled({ name, namespace }: { name: string; namespace: string }): Promise<App.IsInstalledResponse> {
+    // 用於 window.external
+      console.error(1237, name, namespace);
     return this.scriptDAO.findByNameAndNamespace(name, namespace).then((script) => {
+      console.log(1238, name, namespace, script);
+      console.error(1239, name, namespace, script);
       if (script) {
         return {
           installed: true,
-          version: script.metadata.version && script.metadata.version[0],
+          version: script.metadata.version?.[0] || "0.0",
         } as App.IsInstalledResponse;
       }
       return { installed: false } as App.IsInstalledResponse;
diff --git a/src/app/service/service_worker/script_update_check.ts b/src/app/service/service_worker/script_update_check.ts
index ae68fb0c4..f3aa02f33 100644
--- a/src/app/service/service_worker/script_update_check.ts
+++ b/src/app/service/service_worker/script_update_check.ts
@@ -32,7 +32,8 @@ class ScriptUpdateCheck {
     if (!list) return [] as string[];
     const s = new Set<string>();
     for (const entry of list) {
-      if (entry.script?.ignoreVersion === entry.newMeta?.version?.[0]) continue;
+      const newVersion = entry.newMeta?.version?.[0];
+      if (typeof newVersion === "string" && entry.script?.ignoreVersion === newVersion) continue;
       if (entry.script?.status !== 1) continue;
       if (!entry.script?.checkUpdate) continue;
       if (!entry.sites) continue;
diff --git a/src/app/service/service_worker/subscribe.ts b/src/app/service/service_worker/subscribe.ts
index 479e9b0c1..7062c5565 100644
--- a/src/app/service/service_worker/subscribe.ts
+++ b/src/app/service/service_worker/subscribe.ts
@@ -190,15 +190,8 @@ export class SubscribeService {
         logger.error("parse metadata failed");
         return false;
       }
-      const newVersion = metadata.version && metadata.version[0];
-      if (!newVersion) {
-        logger.error("parse version failed", { version: metadata.version });
-        return false;
-      }
-      let oldVersion = subscribe.metadata.version && subscribe.metadata.version[0];
-      if (!oldVersion) {
-        oldVersion = "0.0.0";
-      }
+      const newVersion = metadata.version?.[0] || "0.0";
+      const oldVersion = subscribe.metadata.version?.[0] || "0.0";
       // 对比版本大小
       if (ltever(newVersion, oldVersion)) {
         return false;
diff --git a/src/app/types.d.ts b/src/app/types.d.ts
index 52e9a3c8f..4588e6046 100644
--- a/src/app/types.d.ts
+++ b/src/app/types.d.ts
@@ -34,7 +34,7 @@ declare namespace App {
   export type IsInstalledResponse =
     | {
         installed: true;
-        version: string | undefined;
+        version: string;
       }
     | {
         installed: false;
diff --git a/src/pages/batchupdate/App.tsx b/src/pages/batchupdate/App.tsx
index 163261fcf..1a7721d69 100644
--- a/src/pages/batchupdate/App.tsx
+++ b/src/pages/batchupdate/App.tsx
@@ -92,7 +92,8 @@ function App() {
           site.push(entry);
           continue;
         }
-        const isIgnored = entry.script.ignoreVersion === entry.newMeta?.version?.[0];
+        const newVersion = entry.newMeta?.version?.[0];
+        const isIgnored = typeof newVersion === "string" && entry.script.ignoreVersion === newVersion;
         const mEntry = {
           ...entry,
         };
@@ -269,12 +270,13 @@ function App() {
                       <Link disabled={isDoingTask} onClick={() => onUpdateClick(item.uuid)}>
                         {t("updatepage.update")}
                       </Link>
-                      {item.script.ignoreVersion !== item.newMeta?.version?.[0] ? (
+                      {typeof item.newMeta?.version?.[0] === "string" &&
+                      item.script.ignoreVersion !== item.newMeta.version[0] ? (
                         <>
                           <Divider type="vertical" />
                           <Link
                             disabled={isDoingTask}
-                            onClick={() => onIgnoreClick(item.uuid, item.newMeta?.version?.[0])}
+                            onClick={() => onIgnoreClick(item.uuid, item.newMeta.version[0])}
                           >
                             {t("updatepage.ignore")}
                           </Link>
diff --git a/src/pages/install/App.tsx b/src/pages/install/App.tsx
index b01cd9ed0..d27481a9c 100644
--- a/src/pages/install/App.tsx
+++ b/src/pages/install/App.tsx
@@ -200,7 +200,9 @@ function App() {
     await scriptClient.install({ script: newScript, code });
     const metadata = newScript.metadata;
     setScriptInfo((prev) => (prev ? { ...prev, code, metadata } : prev));
-    setOldScriptVersion(metadata!.version![0]);
+    const scriptVersion = metadata.version?.[0];
+    const oldScriptVersion = typeof scriptVersion === "string" ? scriptVersion : "N/A";
+    setOldScriptVersion(oldScriptVersion);
     setUpsertScript(newScript);
     setDiffCode(code);
   };
@@ -289,7 +291,8 @@ function App() {
         prepare = await prepareSubscribeByCode(code, url);
         action = prepare.subscribe;
         if (prepare.oldSubscribe) {
-          oldVersion = prepare.oldSubscribe!.metadata!.version![0] || "";
+          const oldSubscribeVersion = prepare.oldSubscribe.metadata.version?.[0];
+          oldVersion = typeof oldSubscribeVersion === "string" ? oldSubscribeVersion : "N/A";
         }
         diffCode = prepare.oldSubscribe?.code;
       } else {
@@ -297,7 +300,8 @@ function App() {
         prepare = await prepareScriptByCode(code, url, knownUUID, false, undefined, paramOptions);
         action = prepare.script;
         if (prepare.oldScript) {
-          oldVersion = prepare.oldScript!.metadata!.version![0] || "";
+          const oldScriptVersion = prepare.oldScript.metadata.version?.[0];
+          oldVersion = typeof oldScriptVersion === "string" ? oldScriptVersion : "N/A";
         }
         diffCode = prepare.oldScriptCode;
       }
@@ -793,7 +797,7 @@ function App() {
                 <Tag bordered>{oldScriptVersion}</Tag>
               </Tooltip>
             )}
-            {metadataLive.version && metadataLive.version[0] !== oldScriptVersion && (
+            {typeof metadataLive.version?.[0] === "string" && metadataLive.version[0] !== oldScriptVersion && (
               <Tooltip color="red" content={`${t("update_version")}: v${metadataLive.version[0]}`}>
                 <Tag bordered color="red">
                   {metadataLive.version[0]}
diff --git a/src/pages/options/routes/ScriptList/ScriptCard.tsx b/src/pages/options/routes/ScriptList/ScriptCard.tsx
index 65d7a54f6..34242166e 100644
--- a/src/pages/options/routes/ScriptList/ScriptCard.tsx
+++ b/src/pages/options/routes/ScriptList/ScriptCard.tsx
@@ -181,7 +181,7 @@ export const ScriptCardItem = React.memo(
 
             {/* 版本和更新时间 */}
             <div className="tw-flex tw-flex-row tw-gap-4 tw-text-sm tw-text-gray-500">
-              {item.metadata.version && (
+              {item.metadata.version?.[0] && (
                 <div>
                   <span className="tw-font-medium">
                     {t("version")}
diff --git a/src/pages/options/routes/ScriptList/ScriptTable.tsx b/src/pages/options/routes/ScriptList/ScriptTable.tsx
index efe0d684c..2fc6b724e 100644
--- a/src/pages/options/routes/ScriptList/ScriptTable.tsx
+++ b/src/pages/options/routes/ScriptList/ScriptTable.tsx
@@ -403,7 +403,7 @@ const NameCell = React.memo(({ col, item }: { col: string; item: ListType }) =>
 NameCell.displayName = "NameCell";
 
 const VersionCell = React.memo(({ item }: { item: ListType }) => {
-  return item.metadata.version && item.metadata.version[0];
+  return item.metadata.version?.[0] || "0.0";
 });
 VersionCell.displayName = "VersionCell";
 
diff --git a/src/pages/options/routes/SubscribeList.tsx b/src/pages/options/routes/SubscribeList.tsx
index 30d6ee0e5..d3674a3e6 100644
--- a/src/pages/options/routes/SubscribeList.tsx
+++ b/src/pages/options/routes/SubscribeList.tsx
@@ -158,7 +158,7 @@ function SubscribeList() {
       align: "center",
       key: "version",
       render(col, item: Subscribe) {
-        return item.metadata.version && item.metadata.version[0];
+        return item.metadata.version?.[0] || "0.0";
       },
     },
     {
diff --git a/src/pkg/utils/script.ts b/src/pkg/utils/script.ts
index ea9619593..686b2d1c3 100644
--- a/src/pkg/utils/script.ts
+++ b/src/pkg/utils/script.ts
@@ -83,14 +83,11 @@ export async function prepareScriptByCode(
   if (!metadata.name?.[0]) {
     throw new Error(i18n_t("error_script_name_required"));
   }
-  // 不接受空白version
-  if (!metadata.version?.[0]) {
-    throw new Error(i18n_t("error_script_version_required"));
-  }
   // 可接受空白namespace
   if (metadata.namespace === undefined) {
     throw new Error(i18n_t("error_script_namespace_required"));
   }
+  // 可接受空白version
   let type = SCRIPT_TYPE_NORMAL;
   if (metadata.crontab !== undefined) {
     type = SCRIPT_TYPE_CRONTAB;