What's new in Niseko

The Niseko release introduces new features to unlock financial insights and bring clarity to P&C business performance. Niseko provides key updates to the following product areas:
Note: This document provides a high-level overview of the key features that were introduced in the Niseko release. For more details about these features, refer to the product release notes and documentation.

Guidewire Cloud releases

The Niseko release became available in August 2025. Here are the previous Guidewire Cloud releases:
  • Mammoth - April 2025
  • Las LeƱas - December 2024
  • Kufri - August 2024
  • Jasper - March 2024
  • Innsbruck - November 2023
  • Hakuba - August 2023
  • Garmisch - April 2023
  • Flaine - October 2022
  • Elysian - May 2022
  • Dobson - November 2021
  • Cortina - May 2021
  • Banff - November 2020
  • Aspen - June 2020
You can find the documentation and release highlights for past supported releases on the Guidewire Documentation site. From the Select cloud release list on the Documentation site landing page, select the release in which you are interested.