diff --git a/CHANGELOG.md b/CHANGELOG.md
index aaede70183..f4539dd103 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ---
 
+## [1.6.6] — 2026-02-28
+
+### 🔒 Security Fix
+
+- **Auth bypass after onboarding** — Fixed regression where users could access the dashboard without authentication after upgrading from older versions. The "no password" safeguard (for fresh installs) was incorrectly firing after onboarding was complete, allowing unauthenticated access when `setupComplete=true` but the password DB row was missing ([#151](https://github.com/diegosouzapw/OmniRoute/issues/151))
+
+---
+
 ## [1.6.5] — 2026-02-28
 
 ### 🖥️ Electron Desktop
diff --git a/package.json b/package.json
index 6e8f13e2ce..ba06aee27d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "omniroute",
-  "version": "1.6.5",
+  "version": "1.6.6",
   "description": "Smart AI Router with auto fallback — route to FREE & cheap models, zero downtime. Works with Cursor, Cline, Claude Desktop, Codex, and any OpenAI-compatible tool.",
   "type": "module",
   "bin": {