Require Python 3.10 and test with Python 3.10 to 3.14

Python 3.8 and 3.9 have reached their end of life.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CMyxTwm2w6VtbxBdt5dL1T

Author: claude

.github/workflows/ci.yml

@@ -6,8 +6,11 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - 3.8 # oldest officially supported by python-ly
-          - 3.12 # latest
+          - "3.10" # oldest officially supported by python-ly
+          - "3.11"
+          - "3.12"
+          - "3.13"
+          - "3.14" # latest
 
     steps:
       - name: Check out code

CHANGELOG.md

@@ -7,6 +7,12 @@ defined at the bottom of this file.
 
 All notable changes to the python-ly project are documented in this file.
 
+## [Unreleased]
+
+### Changed
+
+- Require Python 3.10, and test with Python 3.10 to 3.14
+
 ## [0.9.10] - 2026-04-04
 
 ### Fixed
@@ -269,6 +275,7 @@ All notable changes to the python-ly project are documented in this file.
 Initial release.
 
 
+[Unreleased]: https://github.com/frescobaldi/python-ly/compare/v0.9.10...HEAD
 [0.9.10]: https://github.com/frescobaldi/python-ly/compare/v0.9.9...v0.9.10
 [0.9.9]: https://github.com/frescobaldi/python-ly/compare/v0.9.8...v0.9.9
 [0.9.8]: https://github.com/frescobaldi/python-ly/compare/v0.9.7...v0.9.8

pyproject.toml

@@ -8,18 +8,19 @@ description = "Tool and library for manipulating LilyPond files"
 readme = "README.rst"
 license = "GPL-3.0-or-later"
 maintainers = [{name = "Wilbert Berendsen", email = "info@frescobaldi.org"}]
-requires-python = ">= 3.8"
+requires-python = ">= 3.10"
 classifiers = [
     'Development Status :: 4 - Beta',
     #'Development Status :: 5 - Production/Stable',
     'License :: OSI Approved :: GNU General Public License (GPL)',
     'Operating System :: MacOS :: MacOS X',
     'Operating System :: Microsoft :: Windows',
     'Operating System :: POSIX',
-    'Programming Language :: Python :: 3.8',
-    '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',
     'Topic :: Multimedia :: Sound/Audio',
     'Topic :: Text Editors',
 ]