diff --git a/CMakeLists.txt b/CMakeLists.txt
index 268bb53..4eddbd1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.25)
 
 project(UltraLightBrowser
-    VERSION 2.4.2
+    VERSION 2.4.3
     DESCRIPTION "Minimal, Ultra-Fast Windows 11 Native Browser Shell (macOS Safari UI Edition)"
     LANGUAGES CXX C
 )
diff --git a/README.md b/README.md
index 7ba1923..c926cdf 100644
--- a/README.md
+++ b/README.md
@@ -294,6 +294,7 @@ tests/                       单元测试、页面资源检查、Windows 界面
 
 ## 最近更新
 
+- **v2.4.3**：移除机械罗盘图标外围白底与阴影，使用透明背景并收紧留白，重新生成各尺寸 Windows 程序图标。
 - **v2.4.2**：更新为新的机械罗盘程序图标，EXE、窗口和任务栏使用同一组多尺寸图标；同步项目展示图标。
 - **v2.4.1**：修复书签 HTML 导入：正确解析属性空格、制表符和完整属性名，避免把 DATA-HREF 或标题中的文字误当网址；按标准标记识别不同语言的收藏栏；超长网址不再虚报导入成功。新增覆盖以上情况的回归测试。
 - **v2.4.0**：新增「显卡视频增强」（设置 → 高级，默认开）：让 NVIDIA RTX 显卡做视频超分辨率和 SDR 转 HDR、Intel 显卡做超分；需在 NVIDIA App 里开启，接电源、画面被放大时生效。「播放诊断」显示视频放大倍数。
diff --git a/resources/app.ico b/resources/app.ico
index 6449e3f..fad7a7c 100644
Binary files a/resources/app.ico and b/resources/app.ico differ
diff --git a/resources/icon.png b/resources/icon.png
index f647ee2..a1d39d9 100644
Binary files a/resources/icon.png and b/resources/icon.png differ
diff --git a/resources/resource.rc b/resources/resource.rc
index f9aa73d..9d3e3dc 100644
--- a/resources/resource.rc
+++ b/resources/resource.rc
@@ -34,8 +34,8 @@ IDI_APP_ICON ICON "app.ico"
 
 // Version information
 VS_VERSION_INFO VERSIONINFO
-FILEVERSION     2,4,2,0
-PRODUCTVERSION  2,4,2,0
+FILEVERSION     2,4,3,0
+PRODUCTVERSION  2,4,3,0
 FILEFLAGSMASK   VS_FFI_FILEFLAGSMASK
 FILEFLAGS       0
 FILEOS          VOS_NT_WINDOWS32
@@ -48,12 +48,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName",      "UltraLightBrowser"
             VALUE "FileDescription",  "UltraLight Browser - Minimal, Ultra-Fast Windows 11 Native Browser (Safari-style UI)"
-            VALUE "FileVersion",      "2.4.2.0"
+            VALUE "FileVersion",      "2.4.3.0"
             VALUE "InternalName",     "UltraLightBrowser"
             VALUE "LegalCopyright",   "Copyright (C) 2026 Freecode100Year"
             VALUE "OriginalFilename", "UltraLightBrowser.exe"
             VALUE "ProductName",      "UltraLight Browser"
-            VALUE "ProductVersion",   "2.4.2.0"
+            VALUE "ProductVersion",   "2.4.3.0"
         END
     END
     BLOCK "VarFileInfo"