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### Added
- New feature description. See [spec AC-NNN](docs/AC-NNN-slug/spec.md).

### Changed
- What changed in existing behavior. See [spec AC-NNN](docs/AC-NNN-slug/spec.md).

### Deprecated
- Feature scheduled for removal in version X.Y.0.

### Removed
- Feature removed. Note migration path if any.

### Fixed
- Bug description. Link to issue/PR if applicable.

### Security
- Vulnerability fixed. CVE if applicable. Affected versions.