[Packaging] Drop Python 3.9 support #32381
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November 2025 (2025-11-18)❗ Breaking change release ❗ milestone
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Pull Request Overview
This PR drops support for Python 3.9, raising the minimum required version to Python 3.10. This is a breaking change that updates package metadata, build scripts, and documentation accordingly.
Key changes:
- Updated minimum Python version from 3.9 to 3.10 in setup.py files
- Removed Python 3.9 classifiers from all package metadata
- Updated documentation to reflect the new Python version requirements
Reviewed Changes
Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| src/azure-cli/setup.py | Updated python_requires to >=3.10.0 and removed Python 3.9 classifier |
| src/azure-cli-core/setup.py | Updated python_requires to >=3.10.0 and removed Python 3.9 classifier |
| src/azure-cli-testsdk/setup.py | Removed Python 3.9 classifier |
| src/azure-cli-telemetry/setup.py | Removed Python 3.9 classifier |
| scripts/ci/build.sh | Removed Python 3.9 classifier from build script |
| doc/install_linux_prerequisites.md | Updated supported versions from 3.9-3.13 to 3.10-3.13 and changed RHEL/CentOS instructions from python39 to python312 |
| doc/extensions/authoring.md | Updated supported versions and example command from Python 3.9 to 3.13 |
| doc/debug/debug_in_vs_code.md | Updated minimum required Python version from 3.9+ to 3.10+ |
| doc/command_guidelines.md | Updated coding practices to require Python 3.10-3.13 support |
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| ### RHEL 8, CentOS Stream 8, RHEL 9, CentOS Stream 9 | ||
| Install the latest Python 3.9 available in the software repo. | ||
| Install the latest Python 3.12 available in the software repo. |
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The comment suggests installing 'the latest Python 3.12' but the actual minimum version is 3.10 and maximum supported is 3.13. This should either say 'Install Python 3.12 or later' or 'Install Python 3.10 or later (3.12 recommended)' to be consistent with the supported version range stated earlier in the document.
| Install the latest Python 3.12 available in the software repo. | |
| Install Python 3.10 or later (3.12 recommended) available in the software repo. |
| - The Azure CLI supports Python 3.10 ~ 3.13 so verify that your extension does the same. | ||
| - You can create virtual environments for different versions and run your extension in them. | ||
| - e.g. `python3.9 -m venv env38` and `python3.10 -m venv env310`. | ||
| - e.g. `python3.13 -m venv env313`. |
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[nitpick] The example shows only Python 3.13, but it would be more helpful to show multiple versions (e.g., both 3.10 and 3.13) to better illustrate testing across the supported version range, especially since the previous line mentions verifying support for all versions from 3.10 to 3.13.
| - e.g. `python3.13 -m venv env313`. | |
| - e.g. `python3.10 -m venv env310` and `python3.13 -m venv env313`. |
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| ### RHEL 8, CentOS Stream 8, RHEL 9, CentOS Stream 9 | ||
| Install the latest Python 3.9 available in the software repo. | ||
| Install the latest Python 3.12 available in the software repo. |
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Is Python 3.13 not available yet?
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3.13 is not in the default repo yet. 3.12 is the latest version in RHEL.
Ref: https://access.redhat.com/support/policy/updates/rhel-app-streams-life-cycle
3 participants
Description
Drop Python 3.9 as it reaches EOL on 2025-10-31: https://devguide.python.org/versions/
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