# Changelog

## Score

- CAI 73 → 74 (+0.8)
- Rubric changed (rubric-2026.09.8 → rubric-2026.09.16) — scores are not directly comparable.

## Lenses

- Code Health 95 → 95 (+0.0)
- Architecture 91 → 97 (+6.1)
- Maturity 64 → 64 (-0.0)
- Readiness 72 → 72 (+0.0)
- Security 90 → 92 (+2.6)

## Resolved (3)

- Documentation: no installation or build instructions (README.md)
- Documentation: no usage examples (README.md)
- Off-boarding risk: anonymized user #1

## New (2)

- Alias duplication: `acts_as_tree` is a well-known alias for `has_ancestry` in the Rails community (originating from the `acts_as_tree` gem). While providing backward compatibility is good, exposing both as top-level class methods on the same module without clear deprecation markers or distinct documentation intent can confuse users about which is the canonical API.
- Off-boarding risk: anonymized user #1