GIFT — Global Index of Family-Firm Turnarounds v13.1

Version 13.1 (errata) — 2026-07-04. Four cells corrected across four records; aggregate impact negligible. Version 13.0 remains available via native repository versioning for historical reproducibility. Published models (AUC, rates) were estimated on v13.0 and are unaffected. CASE_EAP_F4_0159 (Takata Corporation): misconduct_binary 0 → 1 (DOJ Plea Agreement, Jan 2017). CASE_NA_F1_0042 / _0053 / _0067 (Market Basket; A&P/Haub; Bancroft/WSJ): company_size_category I → IV. The F-component of case_id is a stable legacy identifier; company_size_category is authoritative. Three documented exceptions to the deterministic F<n>-to-size mapping. Aggregate impact: family misconduct=1 count 241 → 242; size distribution Size I -3, Size IV +3. See CHANGELOG_v13.0_to_v13.1.txt. GIFT — Global Index of Family-Firm Turnarounds (v13.0) is a structured, longitudinal dataset of 3,865 turnaround cases across 74 countries, purpose-built for quantitative research on corporate distress, recovery, and failure in family-controlled firms. Concept DOI (all versions): 10.5281/zenodo.18817681