diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1aa9f1acbf..42f2945f69 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,21 @@
 
 ---
 
+## [2.7.8] — 2026-03-18
+
+> Sprint: Budget save bug + combo agent features UI + omniModel tag security fix.
+
+### 🐛 Bug Fixes
+
+- **fix(budget)**: "Save Limits" no longer returns 422 — `warningThreshold` is now correctly sent as fraction (0–1) instead of percentage (0–100) (#451)
+- **fix(combos)**: `<omniModel>` internal cache tag is now stripped before forwarding requests to providers, preventing cache session breaks (#454)
+
+### ✨ Features
+
+- **feat(combos)**: Agent Features section added to combo create/edit modal — expose `system_message` override, `tool_filter_regex`, and `context_cache_protection` directly from the dashboard (#454)
+
+---
+
 ## [2.7.7] — 2026-03-18
 
 > Sprint: Docker pino crash, Codex CLI responses worker fix, package-lock sync.
diff --git a/docs/openapi.yaml b/docs/openapi.yaml
index 59d8923dc2..1cf95746f6 100644
--- a/docs/openapi.yaml
+++ b/docs/openapi.yaml
@@ -1,7 +1,7 @@
 openapi: 3.1.0
 info:
   title: OmniRoute API
-  version: 2.7.7
+  version: 2.7.8
   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 b5e71a770a..450ef43807 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "omniroute",
-  "version": "2.7.7",
+  "version": "2.7.8",
   "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": {