feat: Drop support for Python 3.9 as EOL reached and add Python 3.14 support

Author: Lee-W

.github/workflows/pythonpackage.yml

@@ -6,7 +6,7 @@ jobs:
   python-check:
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
         platform: [ubuntu-22.04, macos-latest, windows-latest]
     runs-on: ${{ matrix.platform }}
     steps:

docs/README.md

@@ -56,7 +56,7 @@ This standardization makes your commit history more readable and meaningful, whi
 
 Before installing Commitizen, ensure you have:
 
-- [Python](https://www.python.org/downloads/) `3.9+`
+- [Python](https://www.python.org/downloads/) `3.10+`
 - [Git][gitscm] `1.8.5.2+`
 
 ### Installation

docs/contributing.md

@@ -15,7 +15,7 @@ If you're a first-time contributor, please check out issues labeled [good first
 ### Required Tools
 
 1. **Python Environment**
-    - Python `>=3.9`
+    - Python `>=3.10`
     - [Poetry](https://python-poetry.org/docs/#installing-with-the-official-installer) `>=2.2.0`
 2. **Version Control & Security**
     - Git

docs/contributing_tldr.md

@@ -2,7 +2,7 @@ Feel free to send a PR to update this file if you find anything useful. 🙇
 
 ## Environment
 
-- Python `>=3.9`
+- Python `>=3.10`
 - [Poetry](https://python-poetry.org/docs/#installing-with-the-official-installer) `>=2.2.0`
 
 ## Useful commands
@@ -21,8 +21,8 @@ poetry format
 # Check if ruff and mypy are happy
 poetry lint
 
-# Check if mypy is happy in python 3.9
-mypy --python-version 3.9
+# Check if mypy is happy in python 3.10
+mypy --python-version 3.10
 
 # Run tests in parallel.
 pytest -n auto # This may take a while.

docs/tutorials/gitlab_ci.md

@@ -74,7 +74,7 @@ test:
 
 auto-bump:
   stage: auto-bump
-  image: python:3.9
+  image: python:3.10
   before_script:
     - "which ssh-agent || ( apt-get update -qy && apt-get install openssh-client -qqy )"
     - eval `ssh-agent -s`

poetry.lock

@@ -10,7 +10,7 @@ maintainers = [
 ]
 license = { file = "LICENSE" }
 readme = "docs/README.md"
-requires-python = ">=3.9,<4.0"
+requires-python = ">=3.10,<4.0"
 dependencies = [
     "questionary (>=2.0,<3.0)",
     # Exclude transitive dependency due to known issue in questionary: https://github.com/tmbo/questionary/issues/454
@@ -39,11 +39,11 @@ classifiers = [
     "Operating System :: OS Independent",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Programming Language :: Python :: Implementation :: CPython",
     "License :: OSI Approved :: MIT License",
 ]
@@ -173,7 +173,7 @@ testpaths = ["tests/"]
 
 [tool.tox]
 requires = ["tox>=4.22"]
-env_list = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+env_list = ["3.10", "3.11", "3.12", "3.13", "3.14"]
 
 [tool.tox.env_run_base]
 description = "Run tests suite against Python {base_python}"