CHANGELOG.md

Dataset v7.5

• Added four columns extending source documentation from origin labels to the meaning and evolution fields: meaning_sources (a public source defining/glossing the expression consistently with basic_meaning), meaning_basis (informant_cohort_documentary | informant_cohort), evolution_sources (dated documentation of the meaning shift described in evolution_notes), and evolution_basis (informant_documentary | informant).
• Coverage: 234/239 expressions carry a meaning source; 184/239 carry a dated evolution source. The remainder are marked informant-basis: meanings established by native-speaker authorship and validated by the peer cohort, evolution notes by native-speaker observation. Absence of documentation for recent expressions is expected and is part of what the benchmark measures.
• Sources were located with search tooling and verified by the authors; the audit trail is in meaning_evolution_verification_checklist.csv pending sign-off.
• No changes to any pre-existing field.

Dataset v7.4.2

• Multi-label community-origin conversion: 16 expressions whose audited sources attribute origin to Black queer/drag/ballroom culture re-coded from single-label (AAVE or LGBTQ+) to the joint AAVE/LGBTQ+ value, joining the 2 items already so coded. The re-coding is evidence-driven: only rows whose recorded origin_sources name both lineages were changed. Deliberately unchanged: "twink" (documented US gay slang, 1960s) and "fruity" (Polari lineage), whose records do not indicate AAVE origin.
• No other fields changed from v7.4.1.

Dataset v7.4.1 — 2026-07-23

• Added origin_sources: per-expression documentary sources supporting community-origin labels (format type:URL | type:URL). 60 expressions carry two independent sources; 7 carry one.
• Added attribution_basis: documentary (two sources), documentary_single (one source), informant (native-speaker attestation by the Gen Alpha informant on the research team; 3 expressions: ids 87, 234, 238).
• Re-coded minority_community_origin to none for 9 expressions where a documentary audit found no supporting attribution or found documented alternative origins (ids 21, 74, 76, 79, 112, 133, 175, 178, 190). Prior labels are preserved in the audit file. Per Appendix C.2, origin is null when uncertain.
• No risk-category, meaning, or temporal fields were changed.
• Known issue carried over: ids 220 and 232 differ in surface form from the evaluated benchmark version (see paper).