diff --git a/astrbot/cli/__init__.py b/astrbot/cli/__init__.py
index 60d15c0d5..068376473 100644
--- a/astrbot/cli/__init__.py
+++ b/astrbot/cli/__init__.py
@@ -1 +1 @@
-__version__ = "4.18.2"
+__version__ = "4.18.3"
diff --git a/astrbot/core/config/default.py b/astrbot/core/config/default.py
index 475a1be5c..fa9d71d74 100644
--- a/astrbot/core/config/default.py
+++ b/astrbot/core/config/default.py
@@ -5,7 +5,7 @@ from typing import Any, TypedDict
 
 from astrbot.core.utils.astrbot_path import get_astrbot_data_path
 
-VERSION = "4.18.2"
+VERSION = "4.18.3"
 DB_PATH = os.path.join(get_astrbot_data_path(), "data_v4.db")
 
 WEBHOOK_SUPPORTED_PLATFORMS = [
diff --git a/changelogs/v4.18.3.md b/changelogs/v4.18.3.md
new file mode 100644
index 000000000..e2b426b4c
--- /dev/null
+++ b/changelogs/v4.18.3.md
@@ -0,0 +1,49 @@
+## What's Changed
+
+### 新增
+
+- 新增桌面端通用更新桥接能力，便于接入客户端内更新流程 ([#5424](https://github.com/AstrBotDevs/AstrBot/issues/5424))。
+
+### 修复
+
+- 修复新增平台对话框中 Line 适配器未显示的问题。
+- 修复 Telegram 无法发送 Video 的问题 ([#5430](https://github.com/AstrBotDevs/AstrBot/issues/5430))。
+- 修复创建 embedding provider 时无法自动识别向量维度的问题 ([#5442](https://github.com/AstrBotDevs/AstrBot/issues/5442))。
+- 修复 QQ 官方平台发送媒体消息时 markdown 字段未清理的问题 ([#5445](https://github.com/AstrBotDevs/AstrBot/issues/5445))。
+- 修复上下文管理策略 -> 上下文截断时 tool call / response 配对丢失的问题 ([#5417](https://github.com/AstrBotDevs/AstrBot/issues/5417))。
+- 修复会话更新时 `persona_id` 被覆盖的问题，并增强 persona 解析逻辑。
+- 修复 WebUI 中 GitHub 代理地址显示异常的问题 ([#5438](https://github.com/AstrBotDevs/AstrBot/issues/5438))。
+- 修复设置页新建开发者 API Key 后复制失败的问题 ([#5439](https://github.com/AstrBotDevs/AstrBot/issues/5439))。
+- 修复 Telegram 语音消息格式与 OpenAI STT 兼容性问题（使用 OGG） ([#5389](https://github.com/AstrBotDevs/AstrBot/issues/5389))。
+
+### 优化
+
+- 优化知识库检索流程，改为批量查询元数据，修复 N+1 查询性能问题 ([#5463](https://github.com/AstrBotDevs/AstrBot/issues/5463))。
+- 优化 Cron 未来任务执行的会话隔离能力，提升并发稳定性。
+- 优化 WebUI 插件页的交互。
+
+## What's Changed (EN)
+
+### New Features
+
+- Added `useExtensionPage` composable for unified plugin extension page state management.
+- Added a generic desktop app updater bridge to support in-app update workflows ([#5424](https://github.com/AstrBotDevs/AstrBot/issues/5424)).
+
+### Bug Fixes
+
+- Fixed the Line adapter not appearing in the "Add Platform" dialog.
+- Fixed Telegram video sending issues ([#5430](https://github.com/AstrBotDevs/AstrBot/issues/5430)).
+- Fixed Pyright static type checking errors ([#5437](https://github.com/AstrBotDevs/AstrBot/issues/5437)).
+- Fixed embedding dimension auto-detection when creating embedding providers ([#5442](https://github.com/AstrBotDevs/AstrBot/issues/5442)).
+- Fixed stale markdown fields when sending media messages via QQ Official Platform ([#5445](https://github.com/AstrBotDevs/AstrBot/issues/5445)).
+- Fixed tool call/response pairing loss during context truncation ([#5417](https://github.com/AstrBotDevs/AstrBot/issues/5417)).
+- Fixed `persona_id` being overwritten during conversation updates and improved persona resolution logic.
+- Fixed incorrect GitHub proxy display in WebUI ([#5438](https://github.com/AstrBotDevs/AstrBot/issues/5438)).
+- Fixed API key copy failure after creating a new key in settings ([#5439](https://github.com/AstrBotDevs/AstrBot/issues/5439)).
+- Fixed Telegram voice format compatibility with OpenAI STT by using OGG ([#5389](https://github.com/AstrBotDevs/AstrBot/issues/5389)).
+
+### Improvements
+
+- Improved knowledge base retrieval by batching metadata queries to eliminate the N+1 query pattern ([#5463](https://github.com/AstrBotDevs/AstrBot/issues/5463)).
+- Improved session isolation for future cron tasks to increase stability under concurrency.
+- Improved WebUI plugin page interactions.
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index 9e421c303..d0845cac8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "AstrBot"
-version = "4.18.2"
+version = "4.18.3"
 description = "Easy-to-use multi-platform LLM chatbot and development framework"
 readme = "README.md"
 requires-python = ">=3.12"