Run regression tests in CI and declare Python 3.12 minimum

.github/workflows/ci.yml

@@ -19,5 +19,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
         run: python -m pip install -e .[release]
+      - name: Run tests
+        run: python -m unittest discover -s tests -v
       - name: Build
         run: python -m build

.github/workflows/release.yml

@@ -16,6 +16,8 @@ jobs:
           python-version: '3.12'
       - name: Install dependencies
         run: python -m pip install -e .[release]
+      - name: Run tests
+        run: python -m unittest discover -s tests -v
       - name: Build release
         run: python -m build --sdist --wheel
       - id: extract-release-notes

CHANGELOG.md

@@ -7,6 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- Declare Python 3.12 as the minimum supported version in package metadata
+
+### Changed
+
+- Run regression tests in CI and before publishing releases
+
 ## [1.3.3] - 2026-10-19
 
 ### Fixed

CONTRIBUTING.md

@@ -5,9 +5,8 @@ don't have time to contribute!
 
 ## Making Changes
 
-> **Note**: This guide assumes you have a working Python installation (most
-> versions are supported) and have the Python Package Installer available in
-> the current user's $PATH.
+> **Note**: This guide assumes you have Python 3.12 or newer installed and have
+> the Python Package Installer available in the current user's $PATH.
 
 To get started, [fork][2] this repository on GitHub and clone a working copy for
 development:
@@ -25,6 +24,18 @@ development, issue:
 
     $ python -m pip install -e .
 
+Run the tests before submitting changes:
+
+    $ python -m unittest discover -s tests -v
+
+The tests use the standard library's `unittest` module and mocked cloud responses;
+no SensorPush account or credentials are needed. CI runs them on Python 3.12 and
+3.13, and the release workflow runs them before building and publishing.
+
+To check that the source distribution and wheel build successfully:
+
+    $ python -m pip install -e '.[release]'
+    $ python -m build
 
 If user-facing changes are introduced, be sure add an entry to the `Unreleased`
 section in [CHANGELOG.md][3].

README.md

@@ -11,6 +11,8 @@ Gateway Cloud API][4] with [Home Assistant][5]. It is primarily used by the
 
 ## Installation
 
+Python 3.12 or newer is required.
+
 `sensorpush-ha` is available on [PyPI][2] and can be installed locally using the
 Python Package Installer:
 

setup.py

@@ -14,6 +14,7 @@
       author_email="sstallion@gmail.com",
       url="https://github.com/sstallion/sensorpush-ha",
       packages=find_packages(),
+      python_requires=">=3.12",
       classifiers=[
           "Development Status :: 5 - Production/Stable",
           "Environment :: Web Environment",