Previous model version (PMV) support and archive event set

Summary of Previous Model Version (PMV) support and archive events updates in this release.

Scope

Previous model version (PMV) support in Touchstoneallows users continued access to the previous version of a model while familiarizing themselves with the enhanced version of that same model. The archive events in Touchstone Re allow users to run loss analyses with the same model versions in the event sets that were current in the 2024 (v12.0) release.

Touchstone-specific updates

The 2025 release of Touchstone includes the previous versions of most models being updated this year. A few important items to note:

  • In Touchstone v13 all 10K, 50K and 100K US Previous Models event sets support the Verisk Severe Thunderstorm Model for the United States v8. Note that Verisk Severe Thunderstorm Model for Canada has been removed from these event sets’ list due to there no longer being a multi-country event catalog dependency for v8 of the U.S. model, where there was a dependency in earlier versions.
    • US AP (Previous Models) – Standard
    • US AP (Previous Models) – Time Independent
    • US AP (Previous Models) – WSST Conditioned Hurricane
    • US AP (Previous Models) – WSST Conditioned Hurricane – Severe Thunderstorm CAT only
    • US AP (Previous Models) – Severe Thunderstorm CAT Only Events
    • World AP Archive event set supports model v8 of the US ST Model:
      • 10K World AP (Archive) – Standard
      • 10K World AP (Archive) – Standard – US Severe Thunderstorm CAT only
      • 10K World AP (Archive) – Warm SST Conditioned Hurricane
      • 10K World AP (Archive) – Warm SST Conditioned Hurricane – US Severe Thunderstorm CAT only
  • Support for South Korea AP PMV has been added and the Japan AP PMV has been updated to use the most recent version of the Verisk Typhoon Model for Japan.
  • European AP Historical (2025) – a new event set has been created to replace previously available historical event sets including:
    • Central European Inland Flood Historical (2019)
    • Europe Earthquake Full Historical (2018)
    • Europe Wind and Severe Thunderstorm Historical (2019)
    • Note: This event set also includes historical events for the UK and Ireland

Touchstone Re-specific updates

Highlights include:

  • The World All Perils (WAP) Archive event sets point to the same models and model versions that were current in the v12.0 WAP event sets.
  • The ILFs for the following models were updated in the WAP Archive sets to reflect updates to the geography and/or lines of business supported (event total industry losses were preserved but distributed to the new scheme):
    • Verisk Typhoon Model for the Northwest Pacific
    • Verisk Earthquake Model for Mexico
    • Verisk Inland Flood Model for Great Britain