diff --git a/CHANGELOG.md b/CHANGELOG.md
index 97548c74..8c895616 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## [5.4.2](https://github.com/kaitranntt/ccs/compare/v5.4.1...v5.4.2) (2025-12-03)
+
+
+### Bug Fixes
+
+* **merge:** resolve conflicts between dev and main ([8347ea6](https://github.com/kaitranntt/ccs/commit/8347ea64c6b919a79f5ab63c398b6c36f012ca2d))
+* **sync:** implement copy fallback for windows when symlinks unavailable ([6b3f93a](https://github.com/kaitranntt/ccs/commit/6b3f93a80a0232e8c964d73e51aa0afb0768b00f)), closes [#45](https://github.com/kaitranntt/ccs/issues/45)
+
 ## [5.4.2-dev.1](https://github.com/kaitranntt/ccs/compare/v5.4.1...v5.4.2-dev.1) (2025-12-03)
 
 
diff --git a/VERSION b/VERSION
index ae273b6d..8ae03c11 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-5.4.2-dev.1
+5.4.2
diff --git a/installers/install.ps1 b/installers/install.ps1
index 8d09b784..adcec9f1 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 = "5.4.2-dev.1"
+$CcsVersion = "5.4.2"
 
 # Try to read VERSION file for git installations
 if ($ScriptDir) {
diff --git a/installers/install.sh b/installers/install.sh
index 2e981f0a..be805c1b 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="5.4.2-dev.1"
+CCS_VERSION="5.4.2"
 
 # Try to read VERSION file for git installations
 if [[ -f "$SCRIPT_DIR/VERSION" ]]; then
diff --git a/package.json b/package.json
index 0dff8516..cb5b98ee 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kaitranntt/ccs",
-  "version": "5.4.2-dev.1",
+  "version": "5.4.2",
   "description": "Claude Code Switch - Instant profile switching between Claude Sonnet 4.5 and GLM 4.6",
   "keywords": [
     "cli",