diff --git a/CHANGELOG.md b/CHANGELOG.md
index 073f1b3..b5b645d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ Notable changes. Format loosely follows [Keep a Changelog](https://keepachangelo
 
 ## [Unreleased]
 
+## [0.4.0] — 2026-08-29
+
 ### Added
 
 - **`hyprvalidate diff-impact`** — Phase 2/3 of schema-diff, building on the
diff --git a/README.md b/README.md
index b5e101e..56ecb93 100644
--- a/README.md
+++ b/README.md
@@ -178,7 +178,7 @@ two jobs, split by trigger:
 
 ```yaml
 - run: pipx install hyprvalidate
-- run: curl -fsSLo schema.json https://raw.githubusercontent.com/Paritsingla7/hyprvalidate/v0.3.0/schema.json
+- run: curl -fsSLo schema.json https://raw.githubusercontent.com/Paritsingla7/hyprvalidate/v0.4.0/schema.json
 - run: hyprvalidate check hypr/ --stub schema.json
 ```
 
diff --git a/examples/ci/validate-hyprland-lua.yml b/examples/ci/validate-hyprland-lua.yml
index a67f970..3acf11e 100644
--- a/examples/ci/validate-hyprland-lua.yml
+++ b/examples/ci/validate-hyprland-lua.yml
@@ -35,7 +35,7 @@ on:
       - "**/*.lua"
 
 env:
-  HYPRVALIDATE_VERSION: "0.3.0"
+  HYPRVALIDATE_VERSION: "0.4.0"
   # Path to your config - a single .lua file or a directory (e.g. from
   # `hyprvalidate convert --split`). Every *.lua file in a directory is
   # checked.
diff --git a/packaging/PKGBUILD b/packaging/PKGBUILD
index 63a1b63..782d431 100644
--- a/packaging/PKGBUILD
+++ b/packaging/PKGBUILD
@@ -1,6 +1,6 @@
 # Maintainer: Paritsingla7 <https://github.com/Paritsingla7>
 pkgname=hyprvalidate
-pkgver=0.3.0
+pkgver=0.4.0
 pkgrel=1
 pkgdesc="Convert and validate Hyprland Lua configs against Hyprland's real API schema"
 arch=('any')
diff --git a/pyproject.toml b/pyproject.toml
index ad636ad..1438ec7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "hyprvalidate"
-version = "0.3.0"
+version = "0.4.0"
 description = "Convert and validate Hyprland Lua configs against Hyprland's real API schema"
 readme = "README.md"
 requires-python = ">=3.10"