diff --git a/app/changelogs/v2.9.0/v2.9.0.md b/app/changelogs/v2.9.0/v2.9.0.md
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+## Overview
+
+The plugin system is now available.
+
+Community developers are welcome to participate in plugin development to add more functions to SiYuan, let’s start with [Plugin Sample](https://github.com/siyuan-note/plugin-sample)!
+
+## Changelogs
+
+Below are the detailed changes in this version.
+
+### Feature
+
+* [Plugin system](https://github.com/siyuan-note/siyuan/issues/5086)
+
+### Enhancement
+
+* [Frontend API](https://github.com/siyuan-note/siyuan/issues/5066)
+* [Top bar buttons support unpin](https://github.com/siyuan-note/siyuan/issues/8345)
+* [Support for listing missing files in Settings - Assets](https://github.com/siyuan-note/siyuan/issues/8383)
+* [The browser can also be opened after disabling Safari on iPhone](https://github.com/siyuan-note/siyuan/issues/8384)
+* [Deduplication when uploading cloud snapshot indexes](https://github.com/siyuan-note/siyuan/issues/8424)
+* [Improve detecting Pad device, treat it as desktop device](https://github.com/siyuan-note/siyuan/issues/8435)
+* [Add more file formats supporting snapshots comparing](https://github.com/siyuan-note/siyuan/issues/8438)
+* [Improve marketplace responsive UI](https://github.com/siyuan-note/siyuan/issues/8439)
+* [Improve UI response after background wakeup on the Android](https://github.com/siyuan-note/siyuan/issues/8441)
+* [Support for opening file history on the doc tree](https://github.com/siyuan-note/siyuan/issues/8448)
+
+### Abolishment
+
+* [Windows 7, 8 and Server 2012 are no longer supported](https://github.com/siyuan-note/siyuan/issues/7347)
+* [Remove Settings - Appearance - Doc icon uses the system native Emoji](https://github.com/siyuan-note/siyuan/issues/8206)
+
+### Bugfix
+
+* [Modifying the title of the doc on the mobile and then backward causes incorrect overwrite](https://github.com/siyuan-note/siyuan/issues/8426)
+* [The hyperlink in the marketplace package README fails to jump to the browser to open](https://github.com/siyuan-note/siyuan/issues/8452)
+
+### Refactor
+
+* [Upgrade Electron](https://github.com/siyuan-note/siyuan/issues/8427)
+* [Remove dependency electron-fetch](https://github.com/siyuan-note/siyuan/issues/8434)
+
+### Development
+
+* [Add `loaded-protyle` to eventbus](https://github.com/siyuan-note/siyuan/issues/8421)
+* [Custom doc block menu moved to block secondary menu](https://github.com/siyuan-note/siyuan/pull/8443)
+* [Plugin API `icon` must be svg id or svg tag in the `addTopBar`](https://github.com/siyuan-note/siyuan/issues/8454)
diff --git a/app/changelogs/v2.9.0/v2.9.0_zh_CHT.md b/app/changelogs/v2.9.0/v2.9.0_zh_CHT.md
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+## 概述
+
+插件系統正式上線。
+
+歡迎社區開發者參與插件開發，為思源筆記增加更多功能，從[插件示例](https://github.com/siyuan-note/plugin-sample)開始行動吧！
+
+## 變更記錄
+
+以下是此版本中的詳細變更。
+
+### 引入特性
+
+* [插件系統](https://github.com/siyuan-note/siyuan/issues/5086)
+
+### 改進功能
+
+* [前端 API](https://github.com/siyuan-note/siyuan/issues/5066)
+* [頂欄按鈕支持取消固定](https://github.com/siyuan-note/siyuan/issues/8345)
+* [支持在 設置 - 資源 中列出缺失的文件](https://github.com/siyuan-note/siyuan/issues/8383)
+* [iPhone 上禁用 Safari 後依然能夠打開瀏覽器](https://github.com/siyuan-note/siyuan/issues/8384)
+* [上傳云端快照索引時去重](https://github.com/siyuan-note/siyuan/issues/8424)
+* [改進 Pad 端設備檢測，將其作為桌面端](https://github.com/siyuan-note/siyuan/issues/8435)
+* [本地快照對比時添加更多文件格式支持](https://github.com/siyuan-note/siyuan/issues/8438)
+* [改進集市響應式界面](https://github.com/siyuan-note/siyuan/issues/8439)
+* [改進 Android 端后台喚醒後的界面響應](https://github.com/siyuan-note/siyuan/issues/8441)
+* [支持在文檔樹上打開文件歷史](https://github.com/siyuan-note/siyuan/issues/8448)
+
+### 移除功能
+
+* [不再支持 Windows 7、8 和 Server 2012](https://github.com/siyuan-note/siyuan/issues/7347)
+* [移除 設置 - 外觀 - 系統原生文檔圖標](https://github.com/siyuan-note/siyuan/issues/8206)
+
+### 修復缺陷
+
+* [移動端修改標題後進行後退錯誤覆蓋](https://github.com/siyuan-note/siyuan/issues/8426)
+* [集市包自述中的超鏈接無法在瀏覽器打開](https://github.com/siyuan-note/siyuan/issues/8452)
+
+### 開發重構
+
+* [升級 Electron](https://github.com/siyuan-note/siyuan/issues/8427)
+* [移除依賴 electron-fetch](https://github.com/siyuan-note/siyuan/issues/8434)
+
+### 開發者
+
+* [添加 `loaded-protyle` 到 eventbus](https://github.com/siyuan-note/siyuan/issues/8421)
+* [自定義文檔塊標菜單移到二級菜單中](https://github.com/siyuan-note/siyuan/pull/8443)
+* [插件 API `addTopBar` 參數 `icon` 必須為 svg id 或者 svg tag](https://github.com/siyuan-note/siyuan/issues/8454)
diff --git a/app/changelogs/v2.9.0/v2.9.0_zh_CN.md b/app/changelogs/v2.9.0/v2.9.0_zh_CN.md
new file mode 100644
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+++ b/app/changelogs/v2.9.0/v2.9.0_zh_CN.md
@@ -0,0 +1,47 @@
+## 概述
+
+插件系统正式上线。
+
+欢迎社区开发者参与插件开发，为思源笔记增加更多功能，从[插件示例](https://github.com/siyuan-note/plugin-sample)开始行动吧！
+
+## 变更记录
+
+以下是此版本中的详细变更。
+
+### 引入特性
+
+* [插件系统](https://github.com/siyuan-note/siyuan/issues/5086)
+
+### 改进功能
+
+* [前端 API](https://github.com/siyuan-note/siyuan/issues/5066)
+* [顶栏按钮支持取消固定](https://github.com/siyuan-note/siyuan/issues/8345)
+* [支持在 设置 - 资源 中列出缺失的文件](https://github.com/siyuan-note/siyuan/issues/8383)
+* [iPhone 上禁用 Safari 后依然能够打开浏览器](https://github.com/siyuan-note/siyuan/issues/8384)
+* [上传云端快照索引时去重](https://github.com/siyuan-note/siyuan/issues/8424)
+* [改进 Pad 端设备检测，将其作为桌面端](https://github.com/siyuan-note/siyuan/issues/8435)
+* [本地快照对比时添加更多文件格式支持](https://github.com/siyuan-note/siyuan/issues/8438)
+* [改进集市响应式界面](https://github.com/siyuan-note/siyuan/issues/8439)
+* [改进 Android 端后台唤醒后的界面响应](https://github.com/siyuan-note/siyuan/issues/8441)
+* [支持在文档树上打开文件历史](https://github.com/siyuan-note/siyuan/issues/8448)
+
+### 移除功能
+
+* [不再支持 Windows 7、8 和 Server 2012](https://github.com/siyuan-note/siyuan/issues/7347)
+* [移除 设置 - 外观 - 系统原生文档图标](https://github.com/siyuan-note/siyuan/issues/8206)
+
+### 修复缺陷
+
+* [移动端修改标题后进行后退错误覆盖](https://github.com/siyuan-note/siyuan/issues/8426)
+* [集市包自述中的超链接无法在浏览器打开](https://github.com/siyuan-note/siyuan/issues/8452)
+
+### 开发重构
+
+* [升级 Electron](https://github.com/siyuan-note/siyuan/issues/8427)
+* [移除依赖 electron-fetch](https://github.com/siyuan-note/siyuan/issues/8434)
+
+### 开发者
+
+* [添加 `loaded-protyle` 到 eventbus](https://github.com/siyuan-note/siyuan/issues/8421)
+* [自定义文档块标菜单移到二级菜单中](https://github.com/siyuan-note/siyuan/pull/8443)
+* [插件 API `addTopBar` 参数 `icon` 必须为 svg id 或者 svg tag](https://github.com/siyuan-note/siyuan/issues/8454)