diff --git a/electron-builder.yml b/electron-builder.yml
index dbd1f036..536e6553 100644
--- a/electron-builder.yml
+++ b/electron-builder.yml
@@ -63,7 +63,4 @@ electronDownload:
 afterSign: scripts/notarize.js
 releaseInfo:
   releaseNotes: |
-    修复快捷翻译部分模型无法正常使用问题
-    改进智能体页面搜索功能
-    改进重新回复按钮功能
-    重新生成的图标修改为@符号
+    修复删除助手会导致应用崩溃的问题
diff --git a/package.json b/package.json
index 65da54dc..942b2ef7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "CherryStudio",
-  "version": "0.8.21",
+  "version": "0.8.22",
   "private": true,
   "description": "A powerful AI assistant for producer.",
   "main": "./out/main/index.js",
diff --git a/src/main/services/AppUpdater.ts b/src/main/services/AppUpdater.ts
index d112e024..03dc8c38 100644
--- a/src/main/services/AppUpdater.ts
+++ b/src/main/services/AppUpdater.ts
@@ -20,6 +20,13 @@ export default class AppUpdater {
     autoUpdater.on('update-available', (releaseInfo: UpdateInfo) => {
       autoUpdater.logger?.info('检测到新版本，开始自动下载')
       mainWindow.webContents.send('update-available', releaseInfo)
+
+      dialog.showMessageBox({
+        type: 'info',
+        title: '正在下载新版本',
+        message: `新版本 ${releaseInfo.version}`,
+        detail: this.formatReleaseNotes(releaseInfo.releaseNotes)
+      })
     })
 
     // 检测到不需要更新时
@@ -34,13 +41,15 @@ export default class AppUpdater {
     })
 
     // 当需要更新的内容下载完成后
-    autoUpdater.on('update-downloaded', () => {
-      logger.info('下载完成，询问用户是否更新')
+    autoUpdater.on('update-downloaded', (releaseInfo: UpdateInfo) => {
+      logger.info('下载完成，询问用户是否更新', releaseInfo)
+
       dialog
         .showMessageBox({
           type: 'info',
           title: '安装更新',
-          message: '更新已下载完成，是否立即安装？',
+          message: `新版本 ${releaseInfo.version} 已准备就绪`,
+          detail: this.formatReleaseNotes(releaseInfo.releaseNotes),
           buttons: ['稍后安装', '立即安装'],
           defaultId: 1,
           cancelId: 0
@@ -55,4 +64,21 @@ export default class AppUpdater {
 
     this.autoUpdater = autoUpdater
   }
+
+  private formatReleaseNotes(releaseNotes: string | ReleaseNoteInfo[] | null | undefined): string {
+    if (!releaseNotes) {
+      return '暂无更新说明'
+    }
+
+    if (typeof releaseNotes === 'string') {
+      return releaseNotes
+    }
+
+    return releaseNotes.map((note) => note.note).join('\n')
+  }
+}
+
+interface ReleaseNoteInfo {
+  readonly version: string
+  readonly note: string | null
 }
diff --git a/src/renderer/src/pages/home/Messages/Message.tsx b/src/renderer/src/pages/home/Messages/Message.tsx
index 4fafb142..ce589be8 100644
--- a/src/renderer/src/pages/home/Messages/Message.tsx
+++ b/src/renderer/src/pages/home/Messages/Message.tsx
@@ -168,7 +168,7 @@ const MessageItem: FC<Props> = ({
             <MessageTokens message={message} isLastMessage={isLastMessage} />
             <MessageMenubar
               message={message}
-              assistantModel={assistant.model}
+              assistantModel={assistant?.model}
               model={model}
               index={index}
               isLastMessage={isLastMessage}