diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3c7f33c..a543958 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
 ## [0.1.0] - 2026-02-26
 
 ### Added
diff --git a/src/py.typed b/src/py.typed
new file mode 100644
index 0000000..e69de29