Bump black from 26.1.0 to 26.3.1

[dependabot]

Bumps black from 26.1.0 to 26.3.1.

Release notes

Sourced from black's releases.

26.3.1

Stable style

• Prevent Jupyter notebook magic masking collisions from corrupting cells by using exact-length placeholders for short magics and aborting if a placeholder can no longer be unmasked safely (#5038)

Configuration

• Always hash cache filename components derived from --python-cell-magics so custom magic names cannot affect cache paths (#5038)

Blackd

• Disable browser-originated requests by default, add configurable origin allowlisting and request body limits, and bound executor submissions to improve backpressure (#5039)

26.3.0

Stable style

• Don't double-decode input, causing non-UTF-8 files to be corrupted (#4964)
• Fix crash on standalone comment in lambda default arguments (#4993)
• Preserve parentheses when # type: ignore comments would be merged with other comments on the same line, preventing AST equivalence failures (#4888)

Preview style

• Fix bug where if guards in case blocks were incorrectly split when the pattern had a trailing comma (#4884)
• Fix string_processing crashing on unassigned long string literals with trailing commas (one-item tuples) (#4929)
• Simplify implementation of the power operator "hugging" logic (#4918)

Packaging

• Fix shutdown errors in PyInstaller builds on macOS by disabling multiprocessing in frozen environments (#4930)

Performance

• Introduce winloop for windows as an alternative to uvloop (#4996)
• Remove deprecated function uvloop.install() in favor of uvloop.new_event_loop() (#4996)
• Rename maybe_install_uvloop function to maybe_use_uvloop to simplify loop installation and creation of either a uvloop/winloop evenloop or default eventloop (#4996)

Output

... (truncated)

Changelog

Sourced from black's changelog.

26.3.1

Stable style

• Prevent Jupyter notebook magic masking collisions from corrupting cells by using exact-length placeholders for short magics and aborting if a placeholder can no longer be unmasked safely (#5038)

Configuration

• Always hash cache filename components derived from --python-cell-magics so custom magic names cannot affect cache paths (#5038)

Blackd

• Disable browser-originated requests by default, add configurable origin allowlisting and request body limits, and bound executor submissions to improve backpressure (#5039)

26.3.0

Stable style

• Don't double-decode input, causing non-UTF-8 files to be corrupted (#4964)
• Fix crash on standalone comment in lambda default arguments (#4993)
• Preserve parentheses when # type: ignore comments would be merged with other comments on the same line, preventing AST equivalence failures (#4888)

Preview style

• Fix bug where if guards in case blocks were incorrectly split when the pattern had a trailing comma (#4884)
• Fix string_processing crashing on unassigned long string literals with trailing commas (one-item tuples) (#4929)
• Simplify implementation of the power operator "hugging" logic (#4918)

Packaging

• Fix shutdown errors in PyInstaller builds on macOS by disabling multiprocessing in frozen environments (#4930)

Performance

• Introduce winloop for windows as an alternative to uvloop (#4996)
• Remove deprecated function uvloop.install() in favor of uvloop.new_event_loop() (#4996)
• Rename maybe_install_uvloop function to maybe_use_uvloop to simplify loop installation and creation of either a uvloop/winloop evenloop or default eventloop (#4996)

... (truncated)

Commits

• c6755bb Prepare release 26.3.1 (#5046)
• 69973fd Harden blackd browser-facing request handling (#5039)
• 4937fe6 Fix some shenanigans with the cache file and IPython (#5038)
• 2e641d1 docs: remove outdated Black Playground references (#5044)
• c014b22 Remove unused internal code (#5041)
• 0dae20b Add new changelog (#5036)
• c5c1cbd Minor release patches (#5035)
• 7e5a828 docs: clarify relationship between Black style and PEP 8 (#5025)
• 69705de docs: add clearer pyproject configuration guidance (#5026)
• 35ea679 Prepare release 26.3.0 (#5032)
• Additional commits viewable in compare view

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Resolves #5038
Resolves #5039
Resolves #4964
Resolves #4993
Resolves #4888
Resolves #4884
Resolves #4929
Resolves #4918
Resolves #4930
Resolves #4996
Resolves #5046
Resolves #5044
Resolves #5041
Resolves #5036
Resolves #5035
Resolves #5025
Resolves #5026
Resolves #5032

[github-actions]

🤖 Claude Code Review

PR Code Review

PR Summary: Dependency version bump — black from 26.1.0 to 26.3.1 in development-requirements.txt.

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Code Quality

• ✅ Style guide: No application code changed; N/A.
• ✅ No commented-out code: N/A.
• ✅ Meaningful variable names: N/A.
• ✅ DRY principle: N/A.
• ✅ Defects/Bugs: Single dependency version bump. No logic, no edge cases, no race conditions or security concerns introduced.

Testing

• ✅ Unit/integration tests: No functional code changed; no new tests required.
• ✅ Test coverage: N/A.

Documentation

• ✅ README/API docs: No functional changes; no documentation update needed.
• ⚠️ CHANGELOG.md: Not updated in this diff. Dependency bumps are typically worth noting in a changelog (e.g., under a "Dependencies" or "Chore" section). Minor finding — acceptable to skip for automated dependency bumps depending on project convention.

Security

• ✅ No hardcoded credentials: N/A.
• ✅ No sensitive data or license files (.lic / AQAAAD strings): None present.
• ✅ black 26.3.1 is a code formatter with no runtime footprint — no security risk from this upgrade.

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Summary

Category	Status
Code Quality	✅ Pass
Testing	✅ Pass
Documentation	⚠️ CHANGELOG not updated (minor)
Security	✅ Pass

Verdict: Approved. This is a routine automated dependency bump with no functional impact. The only minor note is the missing CHANGELOG entry, which may be acceptable depending on project convention for automated bumps.

Automated code review analyzing defects and coding standards