diff --git a/CHANGELOG.md b/CHANGELOG.md
index 87f871413d..b1822fc3b1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,22 @@
 
 ## [Unreleased]
 
-> **Coming next** — see [3.0.0-rc branch](https://github.com/diegosouzapw/OmniRoute/tree/3.0.0-rc).
+---
+
+## [3.0.0] — 2026-03-24
+
+### 🎉 v3.0.0 — Major Release
+
+- All RC changes from v3.0.0-rc.1 through rc.17 finalized
+- **PR #587**: fix(sse): revert `resolveDataDir` import in responsesTransformer for Cloudflare Workers compat (@k0valik)
+- **67+ AI providers** with automatic format translation
+- **9 routing strategies** including auto-combo with self-healing
+- **MCP Server** (16 tools, 3 transports: stdio/SSE/streamable-HTTP)
+- **A2A Server** (Agent-to-Agent v0.3 protocol)
+- **Provider Icons** via `@lobehub/icons` (130+ SVG with PNG fallback)
+- **926 tests** with 0 failures
+- **CodeQL security** — 10+ alerts remediated
+- **Route validation** — 176/176 routes validated with Zod schemas
 
 ---
 
diff --git a/docs/openapi.yaml b/docs/openapi.yaml
index 6a9ef135b6..d93c6cea0d 100644
--- a/docs/openapi.yaml
+++ b/docs/openapi.yaml
@@ -1,7 +1,7 @@
 openapi: 3.1.0
 info:
   title: OmniRoute API
-  version: 3.0.0-rc.16
+  version: 3.0.0
   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-lock.json b/package-lock.json
index a8e40023f3..f4e632845a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "omniroute",
-  "version": "3.0.0-rc.17",
+  "version": "3.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "omniroute",
-      "version": "3.0.0-rc.17",
+      "version": "3.0.0",
       "hasInstallScript": true,
       "license": "MIT",
       "workspaces": [
diff --git a/package.json b/package.json
index 8a041115d8..6146dcc777 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "omniroute",
-  "version": "3.0.0-rc.17",
+  "version": "3.0.0",
   "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": {