[RyoNakagami]

1. Version

Item	Value
Release version	0.1.2
Git tag	v0.1.2 (created automatically after merge)
Base commit (main HEAD)	dab260c

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2. Summary

• Restore encoding detection with chardet 7.x, which no longer exposes the chardet.universaldetector submodule
• Raise the minimum chardet version to 7.0.0
• Version bumped in pyproject.toml (0.1.1 → 0.1.2)
• CHANGELOG.md and commit rules (docs/COMMITRULES.md) added

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3. Changelog

Derived from commits since dab260c. Full history in CHANGELOG.md.

🆕 New Feature

• (none)

⚡ Enhancement

• Raise the minimum chardet version to 7.0.0; the lockfile now pins chardet 7.7.0 (bd99258)
• Add unit tests for the chardet fallback in detect_file_encoding (bd99258)
• Add CHANGELOG.md and Conventional Commits rules (docs/COMMITRULES.md) (bd99258)

🐛 Fixed

• Use chardet.UniversalDetector so encoding detection works with chardet 7.x (bd99258)
• Fix Mermaid diagram rendering in docs/BRANCH_STRATEGY.md (62bbb42)

⚠️ Deprecated

• (none)

💥 Breaking Changes

• (none)

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4. Files Changed (key highlights)

File	Change	Notes
pyproject.toml	Version bump, dependency update	0.1.1 → 0.1.2; chardet>=5.2.0 → chardet>=7.0.0
CHANGELOG.md	Added	New section for 0.1.2
src/encoding_checker_cli/encoding.py	Fixed	chardet 7.x compatible detector import
tests/test_detect_file_encoding.py	Added tests	chardet fallback coverage
docs/COMMITRULES.md	Added	Commit message rules
docs/BRANCH_STRATEGY.md	Fixed	Mermaid rendering

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5. Testing & Validation

CI

• pytest — all tests passed, no errors

Manual

• Encoding detection verified with chardet 7.x installed (uv sync then run the CLI on a non-UTF-8 file)
• CHANGELOG.md entry is accurate and complete
• Version string is consistent across all relevant files

Release readiness

• No open blocking issues targeting this release
• Tag v0.1.2 does not exist yet (it is created by the post-merge workflow)

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