diff --git a/CHANGELOG.md b/CHANGELOG.md
index 51b45d34..b987f0a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+# [5.1.0](https://github.com/kaitranntt/ccs/compare/v5.0.2...v5.1.0) (2025-12-01)
+
+
+### Bug Fixes
+
+* **ci:** use pat token to bypass branch protection ([04af7e7](https://github.com/kaitranntt/ccs/commit/04af7e7c09edbc4207f332e7a613d92df1f2fea1))
+
+
+### Features
+
+* **release:** implement semantic versioning automation with conventional commits ([d3d9637](https://github.com/kaitranntt/ccs/commit/d3d96371def7b5b44d6133ad50d86c934cdf1ad4))
+
 # Changelog
 
 Format: [Keep a Changelog](https://keepachangelog.com/)
diff --git a/VERSION b/VERSION
index a1ef0cae..831446cb 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-5.0.2
+5.1.0
diff --git a/installers/install.ps1 b/installers/install.ps1
index 46f2019c..60b1bb21 100644
--- a/installers/install.ps1
+++ b/installers/install.ps1
@@ -83,7 +83,7 @@ $InstallMethod = if ($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 = "5.0.2"
+$CcsVersion = "5.1.0"
 
 # Try to read VERSION file for git installations
 if ($ScriptDir) {
diff --git a/installers/install.sh b/installers/install.sh
index 8d4fc7a4..a496e278 100755
--- a/installers/install.sh
+++ b/installers/install.sh
@@ -84,7 +84,7 @@ 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="5.0.2"
+CCS_VERSION="5.1.0"
 
 # Try to read VERSION file for git installations
 if [[ -f "$SCRIPT_DIR/VERSION" ]]; then
diff --git a/package.json b/package.json
index 6443aa0f..6a22583d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kaitranntt/ccs",
-  "version": "5.0.2",
+  "version": "5.1.0",
   "description": "Claude Code Switch - Instant profile switching between Claude Sonnet 4.5 and GLM 4.6",
   "keywords": [
     "cli",