chore: drop Python 3.9 support for running SAM, add Python 3.12, 3.13 to CI#3893
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roger-zhangg merged 11 commits intoaws:developfrom Mar 30, 2026
Merged
chore: drop Python 3.9 support for running SAM, add Python 3.12, 3.13 to CI#3893roger-zhangg merged 11 commits intoaws:developfrom
roger-zhangg merged 11 commits intoaws:developfrom
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Drop Python 3.9 as a supported version for running SAM CLI/translator itself. This does NOT affect Python 3.9 as a Lambda runtime — SAM templates using python3.9 as a Lambda runtime continue to work as before. Changes: - setup.py: bump python_requires to >=3.10, update classifiers to 3.10-3.14 - .github/workflows/build.yml: test matrix now runs 3.10, 3.11, 3.12, 3.13, 3.14 - pyproject.toml: black target_version updated to py310-py314 - ruff.toml, tests/ruff.toml, integration/ruff.toml: target-version bumped to py310 - requirements/base.txt: simplified pydantic pin (removed 3.8/3.9 conditionals) - DEVELOPMENT_GUIDE.md: updated supported versions and pyenv instructions
valerena
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Mar 18, 2026
integration/combination/test_function_with_cwe_dlq_generated.py
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valerena
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Mar 27, 2026
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If we're not adding Python3.14, let's update the title/description to reflect that.
roger-zhangg
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valerena
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Mar 28, 2026
valerena
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Mar 30, 2026
vicheey
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Mar 30, 2026
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What
Drop Python 3.9 as a supported version for running the SAM translator itself, and extend CI coverage to Python 3.12, 3.13, and 3.14.
Important distinction
This change only drops Python 3.9 as a version for running SAM. Python 3.9 as a Lambda runtime in SAM templates is still fully supported. Test fixtures that use
Runtime: python3.9are intentionally left unchanged.Changes
python_requiresbumped to>=3.10, classifiers updated to 3.10–3.14target_versionupdated to py310–py314target-versionbumped topy310