diff --git a/CHANGELOG.md b/CHANGELOG.md
index 90fc273..69b842c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,18 @@ All notable changes to wuttaweb will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## v0.4.0 (2024-08-05)
+
+### Feat
+
+- add basic App Info view (index only)
+- add initial `MasterView` support
+
+### Fix
+
+- add `notfound()` View method; auto-append trailing slash
+- bump min version for wuttjamaican
+
 ## v0.3.0 (2024-08-05)
 
 ### Feat
diff --git a/pyproject.toml b/pyproject.toml
index 2c921be..1708f3b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "WuttaWeb"
-version = "0.3.0"
+version = "0.4.0"
 description = "Web App for Wutta Framework"
 readme = "README.md"
 authors = [{name = "Lance Edgar", email = "lance@edbob.org"}]