All Topics | Topic: “New Version of WEAP (2026.11.1), and new Tutorial and FAQ”
Author Message
Mr. Jack Sieber
Subject: New Version of WEAP (2026.11.1), and new Tutorial and FAQ   
Posted: 10/29/2026 Viewed: 37 times

A new version of WEAP is now available, with many new features and bug fixes, including improvements to parallel calculations and catchment delineation, and new climate datasets (CRU, gridMET 28-day forecast). It is recommended for all users to get the update. As always, this new version is backwards compatible with data sets developed in earlier versions of WEAP.

When WEAP starts, it should automatically find this update and offer to download and install it. If you have a problem with the automatic update, you can download the full installation from https://www.weap21.org/Download There is no need to uninstall your existing version first.

The Tutorial has a new section that helps you build your own models: www.weap21.org/Tutorial
Frequently Asked Questions: www.weap21.org/FAQ

See www.weap21.org/WhatsNew for a list of all changes.

Jack Sieber
WEAP Developer
Stockholm Environment Institute
Topic: “New Version of WEAP (2026.11.1), and new Tutorial and FAQ”