Arrow

Immigration Policy Volatility Index

Changelog

Releases

Each release of the Arrow Index is immutable, dated, and versioned. Corrections and additions adjudicated after a release ships land in the next one, and the delta is recorded here.

  1. five-country-2010-20260825-v2-automated-final

    Published September 11, 2026

    348 recorded changes across 5 countries · methodology v6.0

    • Rebuilt the 2010–25 August 2026 record for Australia, Canada, New Zealand, the United Kingdom, and the United States.
    • Revalidated inherited records and retained 348 changes supported by preserved evidence.
    • This release is machine-reviewed; independent human review remains pending.
    • Source coverage denominators remain incomplete, so country comparisons are disabled.