tobiasraabe · Oct 11, 2026 · Oct 11, 2026 · Oct 11, 2026
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
@@ -49,7 +49,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
-        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        python-version: ['3.11', '3.12', '3.13', '3.14']
 
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v6

diff --git a/docs/source/changes.md b/docs/source/changes.md
@@ -5,6 +5,7 @@ them in reverse chronological order.
 
 ## Unreleased
 
+- {pull}`125` requires Python 3.11 or newer for the template and generated projects.
 - {pull}`70` drops support for Python 3.9 and adds support for Python 3.14.
 - {pull}`71` switches typing from mypy to ty.
 - {pull}`72` updates the pre-commit hooks.

diff --git a/hooks/pre_gen_project.py b/hooks/pre_gen_project.py
@@ -4,8 +4,8 @@
 
 MODULE_REGEX = r"^[_a-zA-Z][_a-zA-Z0-9]*$"
 ENVIRON_REGEX = r"^[-_a-zA-Z0-9]*$"
-PYTHONVERSION_REGEX = r"^(3\.(1[0-4])(\.[0-9]{1,2})?)$"
-PYTHONVERSION_MIN = "3.10"
+PYTHONVERSION_REGEX = r"^(3\.(1[1-4])(\.[0-9]{1,2})?)$"
+PYTHONVERSION_MIN = "3.11"
 
 EXCEPTION_MSG_MODULE_NAME = """
 ERROR: The project slug ({module_name}) is not a valid Python module name.

diff --git a/pyproject.toml b/pyproject.toml
@@ -15,7 +15,7 @@ classifiers = [
     "Topic :: Scientific/Engineering",
     "Topic :: Software Development :: Build Tools",
 ]
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 dependencies = ["cookiecutter"]
 
 [build-system]

diff --git a/{{cookiecutter.project_slug}}/.github/workflows/main.yml b/{{cookiecutter.project_slug}}/.github/workflows/main.yml
@@ -45,7 +45,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
-        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        python-version: ['3.11', '3.12', '3.13', '3.14']
 
     steps:
       - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4

diff --git a/{{cookiecutter.project_slug}}/.readthedocs.yaml b/{{cookiecutter.project_slug}}/.readthedocs.yaml
@@ -3,7 +3,7 @@ version: 2
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.10"
+    python: "3.11"
 
 sphinx:
   configuration: docs/source/conf.py

diff --git a/{{cookiecutter.project_slug}}/pyproject.toml b/{{cookiecutter.project_slug}}/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "hatchling.build"
 name = "{{ cookiecutter.project_slug }}"
 version = "0.1.0"
 description = "{{ cookiecutter.project_description }}"
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 classifiers = [
   "Intended Audience :: Science/Research",
   "License :: OSI Approved :: {{ cookiecutter.open_source_license }} License",