chore: drop 3.9 and 3.10

[phi-friday]

closes: #616

Summary by CodeRabbit

• Compatibility

  • Python 3.11 or newer is now required.

• Bug Fixes

  • Parameter bounds are kept within the configured global limits during domain reduction.
  • Result and state processing now handles inputs of different lengths by stopping at the shorter input rather than raising a length-mismatch error.

• Maintenance

  • Updated development and documentation tooling and refreshed example formatting.

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: defaults
• Review profile: CHILL
• Plan: Advanced
• Run ID: 4a099776-224b-4151-97df-fcffbe9b7668

📥 Commits

Reviewing files that changed from the base of the PR and between b58da1a and ebfb5c9.

📒 Files selected for processing: 15

• .github/ISSUE_TEMPLATE/bug_report.md
• .github/workflows/build_docs.yml
• .github/workflows/format_and_lint.yml
• .github/workflows/run_tests.yml
• .pre-commit-config.yaml
• README.md
• bayes_opt/acquisition.py
• bayes_opt/bayesian_optimization.py
• bayes_opt/domain_reduction.py
• bayes_opt/parameter.py
• bayes_opt/target_space.py
• pyproject.toml
• ruff.toml
• tests/test_bayesian_optimization.py
• tests/test_notebooks_run.py

Included review availability: This review used your included allowance. Your plan provides up to 8 included reviews per hour; 7 remain after this review.

📝 Walkthrough

The project now requires Python 3.11 or newer. CI and development-tool configuration reflect this baseline. Runtime code, type annotations, examples, and checks also receive updates.

Changes: Python 3.11 baseline and code updates

Layer / File(s)	Summary
Set the Python version baseline pyproject.toml, .github/workflows/*, ruff.toml, .pre-commit-config.yaml, README.md, .github/ISSUE_TEMPLATE/bug_report.md	The package minimum changes to Python 3.11. CI and Ruff target Python 3.11, and the Ruff pre-commit revision changes to 0.17.1. Sphinx dependency minimums are updated. README and issue-report examples are reformatted without changing their values or arguments.
Update runtime code and types bayes_opt/parameter.py, bayes_opt/domain_reduction.py, bayes_opt/acquisition.py, bayes_opt/bayesian_optimization.py, bayes_opt/target_space.py	Type aliases use PEP 604 union syntax, and the IntParameter annotations are narrowed. Several zip calls explicitly use strict=False. Domain reduction uses a generator expression for its type check and clamps proposed bounds with max and min.
Update tests and notebook checks tests/test_bayesian_optimization.py, tests/test_notebooks_run.py	The duplicate-registration test uses pytest.raises, the expected error pattern uses a raw string, and the notebook skip check uses a generator expression.

Priority: ➖ Normal

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Other

Suggested reviewers: t-muser, jameskrach, adrianmolzon

Merge Risk: ⚪ Minimal · up to ebfb5

The PR intentionally drops Python 3.9 and 3.10, and its metadata, CI, and tooling consistently use Python 3.11 or newer. No material regression is identified in the supplied change summaries.

Pre-merge checks: 5

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the main change: removing Python 3.9 and 3.10 support.
Linked Issues check		Issue #616 asks the project to consider dropping Python 3.9 and 3.10. The PR sets requires-python = ">=3.11", removes the 3.9 and 3.10 classifiers, removes both versions from the test matrix, and up…
Out of Scope Changes check		The source edits support the version and tooling change. They use Python 3.11 typing syntax, satisfy the updated Ruff configuration, or preserve existing non-strict zip and bound-clamping behavior. …
Docstring Coverage		Docstring coverage is 92.31% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 13 functions across 7 files. (8 skipped: 8 …

Full details: Linked Issues check

Explanation

Issue #616 asks the project to consider dropping Python 3.9 and 3.10. The PR sets requires-python = ">=3.11", removes the 3.9 and 3.10 classifiers, removes both versions from the test matrix, and updates workflow and Ruff targets to Python 3.11. The test workflow retains coverage for Python 3.11 through 3.14 and 3.14t.

Full details: Out of Scope Changes check

Explanation

The source edits support the version and tooling change. They use Python 3.11 typing syntax, satisfy the updated Ruff configuration, or preserve existing non-strict zip and bound-clamping behavior. The Ruff, Sphinx, workflow, test, README, and issue-template updates are configuration or formatting support for this migration. No unrelated feature change is shown.

Full details: Docstring Coverage

Explanation

Docstring coverage is 92.31% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 13 functions across 7 files. (8 skipped: 8 unsupported.)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.28%. Comparing base (b58da1a) to head (ebfb5c9).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #630      +/-   ##
==========================================
- Coverage   98.36%   98.28%   -0.09%     
==========================================
  Files          10       10              
  Lines        1223     1221       -2     
==========================================
- Hits         1203     1200       -3     
- Misses         20       21       +1     

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[t-muser]

LGTM! Okay to merge @phi-friday?

[phi-friday]

LGTM! Okay to merge @phi-friday?

yes, it’s okay to merge.