diff --git a/astrbot/core/config/default.py b/astrbot/core/config/default.py
index d89d2d437..0c5f58d0c 100644
--- a/astrbot/core/config/default.py
+++ b/astrbot/core/config/default.py
@@ -5,7 +5,7 @@ import os
 from astrbot.core.computer.booters.cua_defaults import CUA_DEFAULT_CONFIG
 from astrbot.core.utils.astrbot_path import get_astrbot_data_path
 
-VERSION = "4.26.0-beta.7"
+VERSION = "4.26.0-beta.8"
 DB_PATH = os.path.join(get_astrbot_data_path(), "data_v4.db")
 PERSONAL_WECHAT_CONFIG_METADATA = {
     "weixin_oc_base_url": {
diff --git a/changelogs/v4.26.0-beta.8.md b/changelogs/v4.26.0-beta.8.md
new file mode 100644
index 000000000..c9001b82b
--- /dev/null
+++ b/changelogs/v4.26.0-beta.8.md
@@ -0,0 +1,38 @@
+- [更新日志(简体中文)](#chinese)
+- [Changelog(English)](#english)
+
+<a id="chinese"></a>
+
+## What's Changed
+
+### 重点更新
+
+- 优化 WebUI 升级流程：Core 更新改为后台任务，并在检测到 WebUI 与 Core 版本错配时提供自动恢复重启引导，避免刷新页面后卡在 `Missing API key`。([#8846](https://github.com/AstrBotDevs/AstrBot/pull/8846))
+- 增强 QQ 官方机器人群聊能力，支持群消息创建类型，并允许 Webhook 适配器在无缓存 `msg_id` 时主动发送群消息。([#8838](https://github.com/AstrBotDevs/AstrBot/pull/8838), [#8841](https://github.com/AstrBotDevs/AstrBot/pull/8841))
+
+### 修复
+
+- 修复人格编辑时重名校验不准确的问题。([#8843](https://github.com/AstrBotDevs/AstrBot/pull/8843))
+- 加固沙箱文件传输与 CUA 健康检查流程，降低异常环境下的文件操作风险。([#8840](https://github.com/AstrBotDevs/AstrBot/pull/8840))
+
+### 其他
+
+- 将 `faiss-cpu` 版本基线从 `1.12.0` 调整为 `1.14.3`。([#8837](https://github.com/AstrBotDevs/AstrBot/pull/8837))
+
+<a id="english"></a>
+
+## What's Changed (EN)
+
+### Highlights
+
+- Improved the WebUI upgrade flow by running Core updates as background tasks and adding guided recovery when WebUI/Core version mismatches are detected, preventing refreshes from leaving users stuck at `Missing API key`. ([#8846](https://github.com/AstrBotDevs/AstrBot/pull/8846))
+- Enhanced QQ Official Bot group chat support with group message create events and proactive Webhook group sends without requiring a cached `msg_id`. ([#8838](https://github.com/AstrBotDevs/AstrBot/pull/8838), [#8841](https://github.com/AstrBotDevs/AstrBot/pull/8841))
+
+### Bug Fixes
+
+- Fixed duplicate-name validation when editing personas. ([#8843](https://github.com/AstrBotDevs/AstrBot/pull/8843))
+- Hardened sandbox file transfers and CUA health checks to reduce file-operation risk in abnormal environments. ([#8840](https://github.com/AstrBotDevs/AstrBot/pull/8840))
+
+### Other
+
+- Changed the `faiss-cpu` version baseline from `1.12.0` to `1.14.3`. ([#8837](https://github.com/AstrBotDevs/AstrBot/pull/8837))
diff --git a/pyproject.toml b/pyproject.toml
index 433637fba..c44d65fd5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "AstrBot"
-version = "4.26.0-beta.7"
+version = "4.26.0-beta.8"
 description = "Easy-to-use multi-platform LLM chatbot and development framework"
 readme = "README.md"
 license = { text = "AGPL-3.0-or-later" }