diff --git a/CHANGELOG.md b/CHANGELOG.md
index 24c1956..568e2d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 ---
 
-## v5.3.0 (2026-05-09)
+## v5.4.0 (2026-05-09) — Release
 
 ### ✨ 新增功能
 
@@ -23,6 +23,7 @@
 - `platform_utils.py` 新增 `is_process_running()`、`get_process_priority()`、`set_process_priority()` 跨平台工具函数
 - `cli_base.py` 启动时自动初始化进程保护，退出时自动清理
 - `cli_core.py` 启动 banner 显示保护状态图标（单实例/优先级/PPL/看门狗）
+- 全版本号统一更新至 v5.4.0
 
 ---
 
diff --git a/README.en.md b/README.en.md
index 0ee1d9c..d17b14a 100644
--- a/README.en.md
+++ b/README.en.md
@@ -5,7 +5,7 @@
 </p>
 
 <p align="center">
-  <img src="https://img.shields.io/badge/version-5.2.0-blue" alt="version">
+  <img src="https://img.shields.io/badge/version-5.4.0-blue" alt="version">
   <img src="https://img.shields.io/badge/python-3.10+-green" alt="python">
   <img src="https://img.shields.io/badge/license-MIT-orange" alt="license">
   <img src="https://img.shields.io/badge/tests-113%20passed-brightgreen" alt="tests">
diff --git a/README.md b/README.md
index 8b7f845..a91ded7 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 </p>
 
 <p align="center">
-  <img src="https://img.shields.io/badge/version-5.3.0-blue" alt="version">
+  <img src="https://img.shields.io/badge/version-5.4.0-blue" alt="version">
   <img src="https://img.shields.io/badge/python-3.10+-green" alt="python">
   <img src="https://img.shields.io/badge/license-MIT-orange" alt="license">
   <img src="https://img.shields.io/badge/tests-150+%20passed-brightgreen" alt="tests">
diff --git a/launcher.bat b/launcher.bat
index 89eee32..0cd63e9 100644
--- a/launcher.bat
+++ b/launcher.bat
@@ -1,10 +1,10 @@
 @echo off
 chcp 65001 >nul 2>&1
-title 小狸 Pro-CLI v5.1.2
+title 小狸 Pro-CLI v5.4.0
 
 echo.
 echo   ╔══════════════════════════════════════╗
-echo   ║   小狸 Pro-CLI 启动器 v5.1.2       ║
+echo   ║   小狸 Pro-CLI 启动器 v5.4.0       ║
 echo   ║   正在检测环境...                   ║
 echo   ╚══════════════════════════════════════╝
 echo.
diff --git a/xcli_core/tui.py b/xcli_core/tui.py
index 9327431..015e5e2 100644
--- a/xcli_core/tui.py
+++ b/xcli_core/tui.py
@@ -480,7 +480,7 @@ if TEXTUAL_AVAILABLE:
                 "",
                 "  ╔══════════════════════════════════════════════╗",
                 "  ║                                              ║",
-                "  ║    小狸 Pro-CLI v5.2                        ║",
+                "  ║    小狸 Pro-CLI v5.4                        ║",
                 "  ║    智能编程助手 · 动画增强版                  ║",
                 "  ║                                              ║",
                 "  ╚══════════════════════════════════════════════╝",
@@ -524,7 +524,7 @@ if TEXTUAL_AVAILABLE:
                 ("", "msg-dim"),
                 ("  ╔══════════════════════════════════════════════╗", "msg-welcome"),
                 ("  ║                                              ║", "msg-welcome"),
-                ("  ║    小狸 Pro-CLI v5.2                        ║", "msg-welcome"),
+                ("  ║    小狸 Pro-CLI v5.4                        ║", "msg-welcome"),
                 ("  ║    智能编程助手 · 动画增强版                  ║", "msg-welcome"),
                 ("  ║                                              ║", "msg-welcome"),
                 ("  ╚══════════════════════════════════════════════╝", "msg-welcome"),
@@ -719,7 +719,7 @@ if TEXTUAL_AVAILABLE:
                 'cls': lambda: self.action_clear(),
                 'model': lambda: self._switch_model(args),
                 'engine': lambda: self._switch_model(args),
-                'about': lambda: self._system(" 小狸 Pro-CLI v5.2 - 智能编程助手"),
+                'about': lambda: self._system(" 小狸 Pro-CLI v5.4 - 智能编程助手"),
                 'status': lambda: self._show_status(),
                 'tools': lambda: self._show_tools(),
                 'engines': lambda: self._show_engines(),