diff --git a/CHANGELOG.md b/CHANGELOG.md
index 34608b86..08c77200 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [7.12.1](https://github.com/kaitranntt/ccs/compare/v7.12.0...v7.12.1) (2026-01-01)
+
+### Bug Fixes
+
+* **cliproxy:** add comprehensive port validation across proxy system ([e0a1f8f](https://github.com/kaitranntt/ccs/commit/e0a1f8f312c1eb7621b3ea2af2edb4df44a51f64))
+* **cliproxy:** filter undefined config values to preserve defaults ([4c35e8a](https://github.com/kaitranntt/ccs/commit/4c35e8a39ed03ab026a1dff230e06f5d9449fbef))
+
 ## [7.12.0](https://github.com/kaitranntt/ccs/compare/v7.11.1...v7.12.0) (2026-01-01)
 
 ### Features
diff --git a/package.json b/package.json
index a1eeba17..5b506caa 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kaitranntt/ccs",
-  "version": "7.12.0-dev.1",
+  "version": "7.12.1",
   "description": "Claude Code Switch - Instant profile switching between Claude Sonnet 4.5 and GLM 4.6",
   "keywords": [
     "cli",