diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1f597f8..cc44c20 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,8 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-- route every backlog task through the full branching model, dropping the leaf-task exception
-- move the `_` fallback to a second argument typed `Exclude<T, keyof handlers>`, so it receives only the unhandled keys, and infer handler returns from short, unannotated handlers
+## [0.4.0] - 2026-09-20
+
+- move the `_` fallback out of handlers
 
 ## [0.3.0] - 2026-09-18
 
@@ -62,7 +63,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - basic setup
 
-[Unreleased]: https://gitea.e1nsnull.de/tmu/tiny-pattern-ts/compare/0.3.0...main
+[Unreleased]: https://gitea.e1nsnull.de/tmu/tiny-pattern-ts/compare/0.4.0...main
+[0.4.0]: https://gitea.e1nsnull.de/tmu/tiny-pattern-ts/compare/0.3.0...0.4.0
 [0.3.0]: https://gitea.e1nsnull.de/tmu/tiny-pattern-ts/compare/0.2.0...0.3.0
 [0.2.0]: https://gitea.e1nsnull.de/tmu/tiny-pattern-ts/compare/0.1.8...0.2.0
 [0.1.8]: https://gitea.e1nsnull.de/tmu/tiny-pattern-ts/compare/0.1.7...0.1.8
diff --git a/package-lock.json b/package-lock.json
index 4dacd1b..d372e78 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "tiny-pattern-ts",
-    "version": "0.3.0",
+    "version": "0.4.0",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "tiny-pattern-ts",
-            "version": "0.3.0",
+            "version": "0.4.0",
             "license": "MIT",
             "dependencies": {
                 "type-fest": "^5.9.0"
diff --git a/package.json b/package.json
index a2b7512..3bde56f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "tiny-pattern-ts",
-    "version": "0.3.0",
+    "version": "0.4.0",
     "description": "Pattern matching for TypeScript/ESM environments (F#-style, not regex)",
     "keywords": [
         "adt",