diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5add4cf99c..ab0ca5370a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,19 @@
 
 ---
 
+## [2.7.3] — 2026-03-18
+
+> Sprint: Codex direct API quota fallback fix.
+
+### 🐛 Bug Fixes
+
+- **fix(codex)**: Block weekly-exhausted accounts in direct API fallback (#440)
+  - `resolveQuotaWindow()` prefix matching: `"weekly"` now matches `"weekly (7d)"` cache keys
+  - `applyCodexWindowPolicy()` enforces `useWeekly`/`use5h` toggles correctly
+  - 4 new regression tests (766 total)
+
+---
+
 ## [2.7.2] — 2026-03-18
 
 > Sprint: Light mode UI contrast fixes.
diff --git a/docs/openapi.yaml b/docs/openapi.yaml
index d01693f78a..1c3f468fc5 100644
--- a/docs/openapi.yaml
+++ b/docs/openapi.yaml
@@ -1,7 +1,7 @@
 openapi: 3.1.0
 info:
   title: OmniRoute API
-  version: 2.7.2
+  version: 2.7.3
   description: |
     OmniRoute is a local-first AI API proxy router. It provides an OpenAI-compatible
     endpoint that routes requests to multiple AI providers with load balancing,
diff --git a/package.json b/package.json
index dba8f4451c..69555fbb7e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "omniroute",
-  "version": "2.7.2",
+  "version": "2.7.3",
   "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": {