diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0145dde..8228e75 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Unreleased
+## 0.4.0 - 2026-08-20
 
 ### Added
 
diff --git a/package.json b/package.json
index 97ebbf0..dc8cd9b 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "herdr-gui",
   "private": true,
-  "version": "0.3.5",
+  "version": "0.4.0",
   "description": "A web GUI client for Herdr (local socket bridge + React dashboard).",
   "license": "MIT",
   "author": "Arthur",
diff --git a/server/package.json b/server/package.json
index f5856c6..44653ec 100644
--- a/server/package.json
+++ b/server/package.json
@@ -1,7 +1,7 @@
 {
   "name": "herdr-gui-server",
   "private": true,
-  "version": "0.3.5",
+  "version": "0.4.0",
   "license": "MIT",
   "type": "module",
   "scripts": {
diff --git a/web/package.json b/web/package.json
index 00b37b2..6bff5d0 100644
--- a/web/package.json
+++ b/web/package.json
@@ -1,7 +1,7 @@
 {
   "name": "herdr-gui-web",
   "private": true,
-  "version": "0.3.5",
+  "version": "0.4.0",
   "license": "MIT",
   "type": "module",
   "scripts": {