diff --git a/.gitignore b/.gitignore
index c220aa1..6c81c6e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -96,6 +96,7 @@ ipython_config.py
 Pipfile.lock
 poetry.lock
 pdm.lock
+.pdm-python
 
 # PEP 582; used by e.g. pyflow and PDM
 __pypackages__/
diff --git a/pyproject.toml b/pyproject.toml
index b5bcd65..3860e8d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "pyapi-server"
-version = "0.4.1"
+version = "0.5.0"
 description = "Lightweight API framework using an OpenAPI spec for routing and validation."
 readme = "README.md"
 license = {text = "MIT"}
diff --git a/release-notes/0.5.0.md b/release-notes/0.5.0.md
new file mode 100644
index 0000000..ec28fab
--- /dev/null
+++ b/release-notes/0.5.0.md
@@ -0,0 +1,2 @@
+* update for latest openapi-core
+* add 3.12 tests to CI