diff --git a/CHANGELOG.md b/CHANGELOG.md
index 139900e5..ed2608e7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,18 @@ All notable changes to CCS will be documented here.
 
 Format based on [Keep a Changelog](https://keepachangelog.com/).
 
+## [2.4.8] - 2025-11-05
+
+### Fixed
+- **Deprecation Warning**: Fixed Node.js DEP0190 warning by using platform-specific shell option (Windows only)
+- Improved cross-platform compatibility (shell only on Windows, direct spawn on macOS/Linux)
+
+### Technical Details
+- **Files Modified**: `bin/ccs.js` (execClaude function)
+- **Change**: Use `shell: process.platform === 'win32'` instead of `shell: true`
+- **Security**: No injection risk (array-based arguments, controlled inputs)
+- **Performance**: Better performance on Unix systems (no shell overhead)
+
 ## [2.4.7] - 2025-11-05
 
 ### Fixed
diff --git a/VERSION b/VERSION
index e30309f7..f041bc6d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.4.7
+2.4.8
diff --git a/bin/ccs.js b/bin/ccs.js
index f79bb86c..19238b5e 100755
--- a/bin/ccs.js
+++ b/bin/ccs.js
@@ -13,10 +13,11 @@ const CCS_VERSION = require('../package.json').version;
 
 // Execute Claude CLI with unified spawn logic
 function execClaude(claudeCli, args) {
+  // Use shell only on Windows for .cmd/.bat compatibility
   const child = spawn(claudeCli, args, {
     stdio: 'inherit',
     windowsHide: true,
-    shell: true  // FIX: Enable shell for .cmd/.bat files on Windows
+    shell: process.platform === 'win32'
   });
   child.on('exit', (code, signal) => {
     if (signal) process.kill(process.pid, signal);
diff --git a/installers/install.ps1 b/installers/install.ps1
index d28467fd..52d21a19 100644
--- a/installers/install.ps1
+++ b/installers/install.ps1
@@ -30,7 +30,7 @@ $InstallMethod = if ($ScriptDir -and ((Test-Path "$ScriptDir\lib\ccs.ps1") -or (
 # IMPORTANT: Update this version when releasing new versions!
 # This hardcoded version is used for standalone installations (irm | iex)
 # For git installations, VERSION file is read if available
-$CcsVersion = "2.4.7"
+$CcsVersion = "2.4.8"
 
 # Try to read VERSION file for git installations
 if ($ScriptDir) {
diff --git a/installers/install.sh b/installers/install.sh
index ff58e5ec..1249b63a 100755
--- a/installers/install.sh
+++ b/installers/install.sh
@@ -31,7 +31,7 @@ fi
 # IMPORTANT: Update this version when releasing new versions!
 # This hardcoded version is used for standalone installations (curl | bash)
 # For git installations, VERSION file is read if available
-CCS_VERSION="2.4.7"
+CCS_VERSION="2.4.8"
 
 # Try to read VERSION file for git installations
 if [[ -f "$SCRIPT_DIR/VERSION" ]]; then
diff --git a/lib/ccs b/lib/ccs
index 66362c21..265b73db 100755
--- a/lib/ccs
+++ b/lib/ccs
@@ -2,7 +2,7 @@
 set -euo pipefail
 
 # Version (updated by scripts/bump-version.sh)
-CCS_VERSION="2.4.7"
+CCS_VERSION="2.4.8"
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 readonly CONFIG_FILE="${CCS_CONFIG:-$HOME/.ccs/config.json}"
 
diff --git a/lib/ccs.ps1 b/lib/ccs.ps1
index fc354f51..0a222a82 100644
--- a/lib/ccs.ps1
+++ b/lib/ccs.ps1
@@ -134,7 +134,7 @@ function Show-Help {
 }
 
 # Version (updated by scripts/bump-version.sh)
-$CcsVersion = "2.4.7"
+$CcsVersion = "2.4.8"
 $ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
 $ConfigFile = if ($env:CCS_CONFIG) { $env:CCS_CONFIG } else { "$env:USERPROFILE\.ccs\config.json" }
 
diff --git a/package.json b/package.json
index 33f63066..38cd42ca 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kaitranntt/ccs",
-  "version": "2.4.7",
+  "version": "2.4.8",
   "description": "Claude Code Switch - Instant profile switching between Claude Sonnet 4.5 and GLM 4.6",
   "keywords": [
     "cli",