diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05d9598f7a..242c4e6ab9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,28 @@
 
 ---
 
+## [2.6.5] — 2026-03-17
+
+> Sprint: reasoning model param filtering, local provider 404 fix, Kilo Gateway provider, dependency bumps.
+
+### ✨ New Features
+
+- **feat(api)**: Added **Kilo Gateway** (`api.kilo.ai`) as a new API Key provider (alias `kg`) — 335+ models, 6 free models, 3 auto-routing models (`kilo-auto/frontier`, `kilo-auto/balanced`, `kilo-auto/free`). Passthrough models supported via `/api/gateway/models` endpoint. (PR #408 by @Regis-RCR)
+
+### 🐛 Bug Fixes
+
+- **fix(sse)**: Strip unsupported parameters for reasoning models (o1, o1-mini, o1-pro, o3, o3-mini). Models in the `o1`/`o3` family reject `temperature`, `top_p`, `frequency_penalty`, `presence_penalty`, `logprobs`, `top_logprobs`, and `n` with HTTP 400. Parameters are now stripped at the `chatCore` layer before forwarding. Uses a declarative `unsupportedParams` field per model and a precomputed O(1) Map for lookup. (PR #412 by @Regis-RCR)
+- **fix(sse)**: Local provider 404 now results in a **model-only lockout (5 seconds)** instead of a connection-level lockout (2 minutes). When a local inference backend (Ollama, LM Studio, oMLX) returns 404 for an unknown model, the connection remains active and other models continue working immediately. Also fixes a pre-existing bug where `model` was not passed to `markAccountUnavailable()`. Local providers detected via hostname (`localhost`, `127.0.0.1`, `::1`, extensible via `LOCAL_HOSTNAMES` env var). (PR #410 by @Regis-RCR)
+
+### 📦 Dependencies
+
+- `better-sqlite3` 12.6.2 → 12.8.0
+- `undici` 7.24.2 → 7.24.4
+- `https-proxy-agent` 7 → 8
+- `agent-base` 7 → 8
+
+---
+
 ## [2.6.4] — 2026-03-17
 
 ### 🐛 Bug Fixes
diff --git a/docs/openapi.yaml b/docs/openapi.yaml
index 73f178b1af..6283ded5b2 100644
--- a/docs/openapi.yaml
+++ b/docs/openapi.yaml
@@ -1,7 +1,7 @@
 openapi: 3.1.0
 info:
   title: OmniRoute API
-  version: 2.6.4
+  version: 2.6.5
   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 0b250fed51..1989d2f376 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "omniroute",
-  "version": "2.6.4",
+  "version": "2.6.5",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "omniroute",
-      "version": "2.6.4",
+      "version": "2.6.5",
       "hasInstallScript": true,
       "license": "MIT",
       "workspaces": [
diff --git a/package.json b/package.json
index ee60d86024..0319b1c93b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "omniroute",
-  "version": "2.6.4",
+  "version": "2.6.5",
   "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": {