Overall assessment: ✅ Looks good

Executive Summary

• Documentation-only update to ROADMAP.md; no estimator logic, inference, or defaults changed.
• The new “Continuous DiD” core-estimator claim aligns with the Methodology Registry and in-code docstring references.
• Edge-case checklist is not applicable here; tests were not run (doc-only change).

Methodology

• P3 (Info) — Impact: None. Fix: None. Roadmap’s inclusion of Continuous DiD in core estimators matches the Methodology Registry and the ContinuousDiD implementation references. ROADMAP.md:L11-L14, docs/methodology/REGISTRY.md:L398-L402, diff_diff/continuous_did.py:L1-L8.

Code Quality

• P3 (Info) — Impact: None. Fix: None. Documentation-only changes; no code paths affected.

Performance

• P3 (Info) — Impact: None. Fix: None. No runtime or algorithmic changes.

Maintainability

• P3 (Info) — Impact: None. Fix: None. Roadmap reorganization only.

Tech Debt

• P3 (Info) — Impact: None. Fix: None. No new debt introduced.

Security

• P3 (Info) — Impact: None. Fix: None. Documentation-only change; no secrets risk.

Documentation/Tests

• P3 (Info) — Impact: None. Fix: None. Docs updated; tests not required and not run.