diff --git a/.github/workflows/publish-pypi.yaml b/.github/workflows/publish-pypi.yaml
new file mode 100644
index 0000000..c26dbb9
--- /dev/null
+++ b/.github/workflows/publish-pypi.yaml
@@ -0,0 +1,31 @@
+name: Upload Python Package
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: read
+
+jobs:
+  deploy:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python
+      uses: actions/setup-python@v3
+      with:
+        python-version: '3.x'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install build
+    - name: Build package
+      run: python -m build
+    - name: Publish package
+      uses: pypa/gh-action-pypi-publish@27b31702a0e7fc50959f5ad993c78deac1bdfc29
+      with:
+        user: __token__
+        password: ${{ secrets.PYPI_API_TOKEN }}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d268ee1..d0c8e4d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Change Log
 
+## Version 0.5.0
+
+- [feature] Transitioned away from setuptools and setup.py to a pyproject.toml
+  and poetry-based package.
+- [feature] gRPC and protobuf stubs are now automatically compiled when
+  running an editable install (pip install -e).
+
+## Version 0.4.0
+
+- [doc] General documentation updates.
+
+
 ## Version 0.3.0
 
 This release is one of the biggest changes to the code to date. It contains a