diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 816df2d5..2537c1f1 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.3.1"
+  ".": "0.4.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9279c158..6d487ad6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [0.4.0](https://github.com/zmkfirmware/zmk-studio/compare/v0.3.1...v0.4.0) (2026-07-02)
+
+
+### Features
+
+* Add headers to key in resting / non hover state ([#157](https://github.com/zmkfirmware/zmk-studio/issues/157)) ([0f965ed](https://github.com/zmkfirmware/zmk-studio/commit/0f965ed8b744f487ab68c5d9ac03865f01ecef69))
+
+
+### Bug Fixes
+
+* **app:** Show "Unnamed device" rather than "TODO" ([#146](https://github.com/zmkfirmware/zmk-studio/issues/146)) ([de19db3](https://github.com/zmkfirmware/zmk-studio/commit/de19db3f1e2d8dd35cd9cfa61d60707a336f8451))
+* honor an explicit zero rotation origin for keys ([#175](https://github.com/zmkfirmware/zmk-studio/issues/175)) ([1bb6bb8](https://github.com/zmkfirmware/zmk-studio/commit/1bb6bb84a370c8917d8e4db15207087b26b3a844)), closes [#97](https://github.com/zmkfirmware/zmk-studio/issues/97)
+* keys not rerendering between layers ([#132](https://github.com/zmkfirmware/zmk-studio/issues/132)) ([84f1e3b](https://github.com/zmkfirmware/zmk-studio/commit/84f1e3bb3bc550ed314dea95ea93c611e4184bdb))
+* Prevent keys from disappearing after hover in Firefox ([#176](https://github.com/zmkfirmware/zmk-studio/issues/176)) ([908a6f7](https://github.com/zmkfirmware/zmk-studio/commit/908a6f7200e62ebd98f634259c601e3ec56f9572))
+* Update copyright year from 2024 to 2026 ([#170](https://github.com/zmkfirmware/zmk-studio/issues/170)) ([67c9c3d](https://github.com/zmkfirmware/zmk-studio/commit/67c9c3d7afb61947b4b04c3d8ba81c2156b5dc4d))
+
 ## [0.3.1](https://github.com/zmkfirmware/zmk-studio/compare/v0.3.0...v0.3.1) (2025-01-20)
 
 
diff --git a/package-lock.json b/package-lock.json
index 77d0645a..6233596d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "zmk-studio",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "zmk-studio",
-      "version": "0.3.1",
+      "version": "0.4.0",
       "dependencies": {
         "@fortawesome/fontawesome-svg-core": "^6.7.1",
         "@fortawesome/free-brands-svg-icons": "^6.7.1",
diff --git a/package.json b/package.json
index 1505bcaf..8b4ee573 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "zmk-studio",
   "private": true,
-  "version": "0.3.1",
+  "version": "0.4.0",
   "type": "module",
   "scripts": {
     "generate-data": "node scripts/generate-release-data.js",
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 3de9d2ae..4112ad81 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "app"
-version = "0.3.1"
+version = "0.4.0"
 description = "A Tauri App"
 authors = ["you"]
 license = ""
diff --git a/src-tauri/tauri.conf.json b/src-tauri/tauri.conf.json
index 8fd57bfd..4d08dbe0 100644
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@@ -8,7 +8,7 @@
   },
   "productName": "ZMK Studio",
   "mainBinaryName": "zmk-studio",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "identifier": "dev.zmk.studio",
   "bundle": {
     "active": true,