updates to initial files

.github/workflows/release.yml

@@ -1,6 +1,7 @@
 name: Build and upload to PyPI
 # https://packaging.python.org/en/latest/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows/
 
+# Allows a single job at a time.
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.number }}-${{ github.event.ref }}
   cancel-in-progress: true
@@ -67,4 +68,4 @@ jobs:
           path: dist
 
       - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@v1.8.10
+        uses: pypa/gh-action-pypi-publish@v1.12.2

.github/workflows/test.yml

@@ -11,20 +11,26 @@ jobs:
   test:
     runs-on: ${{ matrix.os }}
     strategy:
+      # Create a combinaton of jobs.
       matrix:
         os: [windows-latest, ubuntu-latest, macos-latest]
-        python-version: ['3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
     defaults:
       run:
         shell: bash
 
 
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+        with:
+          # We need the full history to generate the proper version number
+          fetch-depth: 0
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      - uses: Gr1N/setup-poetry@v8
+      - uses: Gr1N/setup-poetry@v9
 
 
       - name: Install the application
@@ -39,6 +45,6 @@ jobs:
           poetry run pytest --color=yes --cov --cov-report=xml
 
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}

pyproject.toml

@@ -15,6 +15,7 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Natural Language :: English",
     "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",