diff --git a/CHANGELOG.md b/CHANGELOG.md
index 65f33af1..c76a80b2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,20 @@
 
 Format: [Keep a Changelog](https://keepachangelog.com/)
 
+## [4.3.8] - 2025-11-23
+
+### Fixed
+- **ora v9 Compatibility**: Fixed "ora is not a function" errors in `ccs doctor` and installer utilities
+- Properly handle ora v9+ ES module format when using CommonJS `require()`
+- All spinner-based operations now work correctly with ora v9.0.0
+
+### Technical Details
+- ora v9+ is an ES module, requiring `.default` property access in CommonJS
+- Updated import: `const oraModule = require('ora'); ora = oraModule.default || oraModule`
+- Fallback spinner implementation ensures graceful degradation when ora is unavailable
+- Affects: `bin/management/doctor.js`, `bin/utils/claude-dir-installer.js`, `bin/utils/claude-symlink-manager.js`
+- Impact: `ccs doctor` command and postinstall scripts now work correctly with latest ora version
+
 ## [4.3.7] - 2025-11-23
 
 ### Fixed
diff --git a/VERSION b/VERSION
index 7e7f33c2..3bcca128 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.3.7
+4.3.8
diff --git a/bin/management/doctor.js b/bin/management/doctor.js
index 2e5c662b..1f1647b0 100644
--- a/bin/management/doctor.js
+++ b/bin/management/doctor.js
@@ -6,7 +6,28 @@ const os = require('os');
 const { spawn } = require('child_process');
 const { colored } = require('../utils/helpers');
 const { detectClaudeCli } = require('../utils/claude-detector');
-const ora = require('ora');
+
+// Make ora optional (might not be available during npm install postinstall)
+// ora v9+ is an ES module, need to use .default for CommonJS
+let ora = null;
+try {
+  const oraModule = require('ora');
+  ora = oraModule.default || oraModule;
+} catch (e) {
+  // ora not available, create fallback spinner that uses console.log
+  ora = function(text) {
+    return {
+      start: () => ({
+        succeed: (msg) => console.log(msg || `[OK] ${text}`),
+        fail: (msg) => console.log(msg || `[X] ${text}`),
+        warn: (msg) => console.log(msg || `[!] ${text}`),
+        info: (msg) => console.log(msg || `[i] ${text}`),
+        text: ''
+      })
+    };
+  };
+}
+
 const Table = require('cli-table3');
 
 /**
diff --git a/bin/utils/claude-dir-installer.js b/bin/utils/claude-dir-installer.js
index ed700916..51ddb4b9 100644
--- a/bin/utils/claude-dir-installer.js
+++ b/bin/utils/claude-dir-installer.js
@@ -6,11 +6,24 @@ const path = require('path');
 const os = require('os');
 
 // Make ora optional (might not be available during npm install postinstall)
+// ora v9+ is an ES module, need to use .default for CommonJS
 let ora = null;
 try {
-  ora = require('ora');
+  const oraModule = require('ora');
+  ora = oraModule.default || oraModule;
 } catch (e) {
-  // ora not available, will use console.log instead
+  // ora not available, create fallback spinner that uses console.log
+  ora = function(text) {
+    return {
+      start: () => ({
+        succeed: (msg) => console.log(msg || `[OK] ${text}`),
+        fail: (msg) => console.log(msg || `[X] ${text}`),
+        warn: (msg) => console.log(msg || `[!] ${text}`),
+        info: (msg) => console.log(msg || `[i] ${text}`),
+        text: ''
+      })
+    };
+  };
 }
 
 const { colored } = require('./helpers');
diff --git a/bin/utils/claude-symlink-manager.js b/bin/utils/claude-symlink-manager.js
index 5146339d..b0fdcd76 100644
--- a/bin/utils/claude-symlink-manager.js
+++ b/bin/utils/claude-symlink-manager.js
@@ -5,11 +5,24 @@ const path = require('path');
 const os = require('os');
 
 // Make ora optional (might not be available during npm install postinstall)
+// ora v9+ is an ES module, need to use .default for CommonJS
 let ora = null;
 try {
-  ora = require('ora');
+  const oraModule = require('ora');
+  ora = oraModule.default || oraModule;
 } catch (e) {
-  // ora not available, will use console.log instead
+  // ora not available, create fallback spinner that uses console.log
+  ora = function(text) {
+    return {
+      start: () => ({
+        succeed: (msg) => console.log(msg || `[OK] ${text}`),
+        fail: (msg) => console.log(msg || `[X] ${text}`),
+        warn: (msg) => console.log(msg || `[!] ${text}`),
+        info: (msg) => console.log(msg || `[i] ${text}`),
+        text: ''
+      })
+    };
+  };
 }
 
 const { colored } = require('./helpers');
diff --git a/installers/install.ps1 b/installers/install.ps1
index c5bcf135..8e7c5801 100644
--- a/installers/install.ps1
+++ b/installers/install.ps1
@@ -31,7 +31,7 @@ $InstallMethod = if ($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 = "4.3.7"
+$CcsVersion = "4.3.8"
 
 # Try to read VERSION file for git installations
 if ($ScriptDir) {
diff --git a/installers/install.sh b/installers/install.sh
index df5f30a8..9a135d6c 100755
--- a/installers/install.sh
+++ b/installers/install.sh
@@ -32,7 +32,7 @@ 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="4.3.7"
+CCS_VERSION="4.3.8"
 
 # Try to read VERSION file for git installations
 if [[ -f "$SCRIPT_DIR/VERSION" ]]; then
diff --git a/lib/ccs b/lib/ccs
index fa3fd056..8091dbf8 100755
--- a/lib/ccs
+++ b/lib/ccs
@@ -2,7 +2,7 @@
 set -euo pipefail
 
 # Version (updated by scripts/bump-version.sh)
-CCS_VERSION="4.3.7"
+CCS_VERSION="4.3.8"
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 readonly CONFIG_FILE="${CCS_CONFIG:-$HOME/.ccs/config.json}"
 readonly PROFILES_JSON="$HOME/.ccs/profiles.json"
diff --git a/lib/ccs.ps1 b/lib/ccs.ps1
index 5549bd05..2e5ff00e 100644
--- a/lib/ccs.ps1
+++ b/lib/ccs.ps1
@@ -12,7 +12,7 @@ param(
 $ErrorActionPreference = "Stop"
 
 # Version (updated by scripts/bump-version.sh)
-$CcsVersion = "4.3.7"
+$CcsVersion = "4.3.8"
 $ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
 $ConfigFile = if ($env:CCS_CONFIG) { $env:CCS_CONFIG } else { "$env:USERPROFILE\.ccs\config.json" }
 $ProfilesJson = "$env:USERPROFILE\.ccs\profiles.json"
diff --git a/package-lock.json b/package-lock.json
index ab868753..29e54d08 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@kaitranntt/ccs",
-  "version": "4.3.5",
+  "version": "4.3.7",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@kaitranntt/ccs",
-      "version": "4.3.5",
+      "version": "4.3.7",
       "hasInstallScript": true,
       "license": "MIT",
       "os": [
diff --git a/package.json b/package.json
index 986dfc4a..aa32458f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kaitranntt/ccs",
-  "version": "4.3.7",
+  "version": "4.3.8",
   "description": "Claude Code Switch - Instant profile switching between Claude Sonnet 4.5 and GLM 4.6",
   "keywords": [
     "cli",